Air Purifier: Surround Air XJ-3800 Intelli-Pro

XJ-3800 Intelli

The Surround Air XJ-3800 Intelli-Pro works by automatically controlling and monitoring the air quality using a set of thorough devices. This air purifier removes air impurities that cause odors, toxins, allergies, etc. with seven different modes of cleaning.

The Intelli-Pro has a diagnostic built-in sensor that informs you when to replace the filter and it have a proven 99.97 percent collection rate long-lasting HEPA filter.

XJ-3800 Intelli2

The purifier is designed to be used in offices and homes as well. Compared to other air purifiers, who uses only two to three environment stages, this purifier uses seven different stages. These seven stages begins with the HEPA filter, followed by the carbon filtration system, then the ionizer, photocatalytic (TiO2) filter, germicidal UV lamp, a pre-filter, and lastly the collector of electrostatic particulate.

The HEPA filter of this purifier is clinically proven to eliminate 99.97 percent of airborne particles in an area of up to 600 square feet. Cigarette smoke, odors, and chemicals are effectively removed by the filtration system that uses activated carbon. Killing harmful microorganisms and bacteria is the UV lamp’s main function. The product uses magnetic force also to lengthen the service life of the filters and trap pollutants as well.

Air Purifier Concepts: Nuvola

This ceiling fan looking Nuvola Air Purifier is designed by an Industrial Designer and Project Manager Yana Klimava.


The concept

Polluted air particles are a main factor that triggers respiratory diseases like asthma in children and adults in urban areas. In recent years, numerous air purifiers are designed to eliminate smoke, insect particles, pollen, fumes and dust. Yana Klimava designed Nuvola Air Purifier primarily for the allergic and asthmatic kids. The purifier is attached on the ceiling like a ceiling fan and it can be activated by a remote control. Yana reveals that the Nuvola is essentially directed towards children with age below 19 years old.

The inspiration

From the look of it, the Nuvola is clearly designed from nature and it looks like a cloud (‘nuvola’ Italian for cloud). It is built to perfectly fit on the ceiling fan, which offers an improved boosts and reach the projected functionality of air cleaning in the children’s bedroom.

What’s different?

It is attached to the ceiling to properly access the surrounding air and does not occupy a lot of space. It is also designed for allergic and asthmatic children. The body of the Nuvola is rigid, impervious and shiny.


What is in it for me

Its design patterned from a cloud, really fits the children’s room. It has two fluorescent lamps that function as a ceiling lamp.

The product contains a remote control for easy control, which can also be clipped on the wall. When it’s time to change the filter, the indicator light lights up.

Airpura T600 Air Purifier Designed For Tobacco Smoke

The Airpura T600 is made for cleaning the air from tobacco smoke. It has a pre-filter with tar barrier coupled with a bed made of carbon to absorb 4000 plus dangerous chemicals from the air especially found in tobacco smoke. After the pre-filter, the air passes through the HEPA filter. Even with a powerful motor, the T600 will quietly clean the room up to 1575 square feet. For maximum cleaning, you can place it in a room with an area of 525 square feet.


This purifier is good for anyone who smokes and for those who are exposed to secondhand smoke. The carbon pre-filter not only absorbs harmful chemicals, it has anti-microbial protection also. For a sturdy design, it employs an all-metal housing. All the electrical wires and the motor are isolated from the clean air to prevent off-gassing.


The Airpura T600 is not only technically good, it also has a clean modern design with 3 colors to choose from: Black, White or Cream.

HEPA Air Purifier: Whirlpool Whispure 315-CADR

If you are tired of buying medicine just to get rid of your allergy, buy the Whirlpool Whispure 315-CADR Air Purifier with True HEPA filter. Whirlpool successfully designed their air purifier to efficiently clean the indoor air. The HEPA filter captures 99.97 percent of undesirable dust, mold spores, cat dander, and cigarette smoke.

Whispure 315-CADRThe Whirlpool Whispure 315-CADR can effectively clean the air up to an area of 500 square feet. It has a 4 fan speed control and turbo is the highest setting. For quiet operation, the sleep mode will allow you to sleep undisturbed.

Whispure 315-CADR filter

The Clean Air Delivery Rate (CADR) is used to compare the effectiveness of air purifier brands. It indicates the volume of filtered air delivered by an air purifier. This Whirlpool Whispure boasts a 315 CADR.

User Reviews:

“Went looking for an air purifier on Consumer’s Report and they recommended this Whirlpool. Glad we got it it works wonders! It’s amazing how much dust and pollen are eliminated from the air we breathe. Love it, love it, love it!!!”

“It works so well and on the lowest setting is quiet enough to leave in the bedroom with my sleeping children. A recent overnight visitor commented that in the past my cats caused her allergies to act up and take some of the pleasure out of her visit. She would wake in the morning with red, itchy eyes and a stuffy nose. This visit she had no reaction to the cats. We moved the purifier into her room at night and then back to the living room during the day. She was thrilled. The filters are expensive but until I can afford a whole house system, this is the way to go.”

“My future son in law can not sleep at our house do to a cat dander allergy. He bought the older version of this on amazon for his home- said he got major relief from the minor irritation his cat causes. Well based on his results with the older version – I bought this one – clears a major area in minutes in the room we are in – then put it in the guest room for the night – happy to say – allergy free the entire night! IT WORKS…. we put it in our bedroom when they are not visiting – and surprisingly – we both sleep much better – wake up refreshed and without “scratchy eyes and throats” … so all in all – well worth the price paid!”

“The controls are simple to use. I find there to be plenty of options for fan speed (noise control). On the lowest setting I can watch TV at normal volume levels with the unit sitting three feet from me. After leaving the room it’s easy to ratchet it up to the TURBO mode which I leave it on most of the time when not using the living areas. I appreciate the indicators which tell you when the filter needs replacing, and roughly where it is at in terms of its lifespan (there are five lights to represent HEPA and pre filter status). I also appreciate the 5 year limited warranty that comes with the unit (see brochure for details).”

“After 2.5 months of use I find that there is a noticeable difference in the quality of the air. It feels fresher, smells cleaner, and I can’t see dust flying through the air (which was a usual occurrence before the filter). At first I was hesitant to spend so much on a purifier which required an on-going investment each year; however, after spending 2.5 months with the first unit I’m going to order a 2nd unit for my bedroom. I don’t have allergies, but feel that the investment is well worth the reduced dusting, potential health benefits, and quality construction of the unit itself.”

“Love this air filtration. I can really tell the difference at night with my breathing. My nose is not stuffy when I wake up in the morning. It’s not too loud. I am a light sleeper and I can sleep through it. LOVE IT…fast delivery too.”

Looking For A Good Air Purifier

Did you know that the air inside your home is actually ten times more polluted than the air outside? If you have asthma or other allergies, the polluted air inside will worsen your condition. This is not a good news for the children and the elderly.


Cleaning the air in your home is the best option. But how? Well, there are lots of air purification products available in the market today. All air purifiers as the name implies will purify the air inside you home,  but not all air purifiers are the same. Knowing how to locate a good air purifier will help you choose the best product suited for you and your home.

When you buy an air purifier, make sure that it is the best quality when it comes to purifying the  air inside your home. One of the products that fits the description above is the HEPA Purifiers. Having the best air purifier can give you a wide range of advantage.

hepa air purifier

Now that you know the facts about indoor air pollution and the advantage of choosing the best air purifier, I now recommend you to use air purifier products and have a much improve overall health.

Consumer Reports Air Purifiers

Consumer Reports air purifier reviews compare different models of purifiers which are available on the retail market. This consumer organization compares both portable and house air purifiers.

Consumer Reports Air Purifiers

Consumer Reports recommends air purifiers for people with allergies or asthma for whom other remedies do not work sufficiently well to control the problem. Because all makers of air purifiers claim their products kill airborne germs and filter pollution and particulate matter, Consumer Reports tests various models to see if the label claims are met.

Consumer Reports recommends that you locate the Association of Home Appliance Manufacturers (AHAM) logo on the label and look at the set of three numbers. These three numbers represent tobacco smoke, pollen and dust which is removed by the purifier. Most air purifiers are certified by AHAM as part of the clean-air delivery rate (CADR) program. Judged by Consumer Reports, air purifiers that rate 350 or above are excellent and those below 100 are poor. AHAM includes the room size which can be effectively cleaned so that you can choose a model certified for the space in which you plan to use the unit.

Unfortunately, there is no industry standard measurement for pollutants and irritants other than tobacco smoke, dust, and pollen. Government authorities scrutinize manufacturers that attempt to make medical claims about air purifiers.

Consumer Reports air purifiers testing of portable air purifiers has shown that of 30 models tested, some were efficient and quiet while two models were so poor that they made the Consumer Reports “Don’t Buy: Performance Problem” rating. Some models worked well only on the highest, noisiest setting. And Consumer Reports warns that no air purifier can relieve asthma or allergy symptoms alone; these problems require the help of your physician or medical specialist.

Consumer Reports Air Purifiers graph

Consumer reports found that whole house systems vary as much as portable systems. The professionally installed, top-end units were found to have an impact on air quality in most cases. Many of the air filtration systems designed for self-installation were much less effective.

Consumer Reports air purifier ratings can be found at their website. You can also read a guide to purifier types and technologies. Shop wisely by being armed with facts from this well-respected consumer testing and reporting agency.

Electrostatic Air Purifier

An electrostatic air purifier can make a big difference in the way your home smells as well as the amount of pollution in the air. Pollen, dust, pet dander, cigarette smoke, even bacteria can be removed from your breathing air with these air cleaners.

electrostatic air purifier

An electrostatic air purifier is one type of air clean that generates ozone to make the air smell better. Ozone is a gas which is present everywhere in small amounts. You’ve noticed a fresh, clean smell after lightning strikes nearby and that is caused by the ozone generated by the natural process of lightning. That same fresh smell can be present in your home all the time by adding electrostatic air cleaners to every room in the home.

Electrostatic air purifiers also work to remove debris from the air because the ozone infiltrates the cells of bacteria and attaches to other pollutants, making the cells rupture and the particulate matter become heavier than air. The particles then simply fall to the floor where you do not breathe them into your lungs.

The electrostatic coil in the air purifier generates negative ozone ions. You may have heard this type of air purifier called an ionizer; these are the same types of devices. In many cases, the electrostatic air purifier will also contain an additional carbon or HEPA filtration system to remove even more particulate matter from the ambient air.

People who suffer from allergies or asthma can benefit the most from air purifiers. Much of the allergens and pollution which triggers allergy and asthma attacks can be removed from breathing air effectively and reduce the severity and frequency of attacks. The use of an electrostatic air purifier should be used to compliment treatment by medical professionals and is not meant to replace the need for such treatment. However, in combination with medications and other allergy or asthma reducing practices, the quality of life can be greatly enhanced.

It is important, when shopping and comparing electrostatic air purifiers, that you determine the largest room in the home in which you plan to use the system. Measure the room’s length, width and height and multiple these three numbers together to determine the cubic feet of air you need to have purified. Then, read the labels or product description of each air purifier you are considering to determine the area which can be effectively cleaned of pollutants and allergens. Placing a unit which is too small in a large room can result in little improvement, so be sure to invest in the proper capacity electrostatic air purifiers to improve your breathing and the scent of your home.


Holmes HAP625 Air Purifier


The Holmes HAP625 Air Purifier is a portable air purifier that lets you clean the air in the room quietly and efficiently. It provides genuine High Energy Particulate Air (HEPA) filtration, which is a very desirable feature in an air purifier. The many great features of the Holmes HAP625 make this an air purifier that is worth your considerations. But first, a few basic pros and cons of this model.

Among the “pros” of the Holmes HAP625 are that the machine is small and can be positioned either upright or on its side so it can be made to fit a variety of spaces, and can even go on a shelf. The HEPA filter is well sealed with a gasket so that no unclean air taken up by the machine is able to bypass the filter. Additionally, the Holmes HAP625 is very quiet, producing under 50 decibels on its top speed setting.

The main “con” of the Holmes HAP625 is that it is small, and can only purify the air in rooms that are around 200 square feet in area or smaller. Also, carbon filters will have to be replaced every few months to get the best smoke, gas, and chemical odor removal.

The HEPA filter in the Holmes HAP625 air purifier is some of the best HEPA technology use available. Because it is a true HEPA filter, it has to remove at least 99.97% of particles from the air that are 0.3 microns in size or larger. Therefore, almost all the airborne particles that can aggravate allergies and asthma are removed from the air by a HEPA filter. And the gasket around the HEPA filter ensures that of all the air that is taken into the air purifier, it cannot bypass the filter, but must instead pass through the filter and be cleaned.
The activated carbon pre-filter in the Holmes HAP625 is another great feature. It performs two basic functions: it helps capture large particles in the air, removing them from the path of the main HEPA filter, and it also traps harmful gases and odors due to the shape and arrangement of the carbon molecules. Activated carbon is capable of breaking down some 4,000 chemicals and odors, removing them from the environment. They work better than any air freshener could at eliminating odors.

The Holmes HAP625 is designed to work in small rooms – up to around 200 square feet in area. In a room this size, it will change the air six times in one hour, which is considered the optimal rate of air movement through an air purifier. While it will purify the air in larger rooms, it will not be able to change the air as many times in one hour, so it will not be optimal filtration. For example, a room with 525 square feet in area will only get 2 complete air changes in one hour, which is helpful, but not ideal.

For optimal performance, the filters in the Holmes HAP625 will need to be changed regularly so that they don’t clog. This includes both the HEPA filter and the carbon pre-filter. If the filters are allowed to become too clogged, there is the possibility that the motor will burn out. The HEPA filter will have to be replaced every one to two years, at a cost of around $30 per filter.. The frequency with which you’ll need to change the carbon filter is usually around 3 to 4 months, but if there is smoking in the area, these filters will clog faster and have to be replaced more frequently. The carbon filters come in packages of 4 that cost around $16.95.

The Holmes HAP625 runs very quietly because the HEPA filter has been treated so that it captures the maximum number of particles while still allowing good air flow. On its loudest setting, it only produces 50 decibels, while running the purifier on “silent” mode takes the noise down to 30 decibels, which is very quiet, particularly for an air purifier.

The air purification device retails for around $50. This is a great price for a HEPA air purifier. It also comes with a 5-year warranty, which is longer than many air purifier warranties. In addition to the filtration technologies, it also has some great extras. A lighted color display tells you when the filters need to be replaced, and the space-saving design lets you place the machine right next to a wall and have it still run efficiently. This is a great, inexpensive air purifier that can give you years of faithful service. The level of purification it provides is high, while filter replacement costs are more reasonable than for most air purifiers.

If you are looking for replacement filters for the HAP625, we can reccomend the following:

Holmes True HEPA Filter with Enhanced Mold Fighting Power, 2-Pack, White, 2 Count
  • TRUE HEPA FILTRATION: Filter helps remove up to 99.97 percent of dust, smoke, pollen, odors, mold spores, and pet dander from the air passing through it, filtering particles as small as 0.3 microns to help provide cleaner air for your home or office
  • PACK OF 2: Includes 2 replacement filters
  • COMPATIBLE: Compatible with select Holmes Air Purifiers
  • FITS HOLMES AIR PURIFIER MODELS: Compatible with HAP616, HAP633, HAP653, HAP726, HAP756, HAP759, HAP8615, HAP8650, and HAP9726 models
  • FITS BIONAIRE HOLMES AIR PURIFIER MODELS: Compatible with BAP1225, and BAP1250 models

If you are interested in a new air purifier, we would be happy to reccomend any from our best of 2020 list:

1.Austin A250B1 – Best Overall
Austin Air A250B1 HealthMate Plus Junior Air Purifier, Black
  • Designed for people living in smaller spaces and specializes in the reduction of harmful chemicals, noxious gases, VOC’s, formaldehyde, and sub micron particles for individuals in the most contaminated of settings
  • Broad spectrum adsorption offers protection for people exposed to smoke from wildfires, those living close to busy highways, and people with sensitivity to certain chemicals and gases found in the home
  • True medical grade HEPA filter removes 99.97% of all particles larger than 0.3 microns; over 270 cubic inches of activated carbon impregnated with potassium iodide and zeolite filtration removes odors, gases and chemicals including formaldehyde and benzene
  • 3 speed settings for fan; 360 degree intake system draws air into all sides of unit, passing air through a 4 stage filter
  • Eases headaches and reduces nausea related to chemical exposure; helps reduce coughing, wheezing and sneezing, dry mouth, runny nose; reduces night time allergies and asthma attacks, snoring, and helps you sleep better; strengthens the immune system

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2. Medify MA-40 2.0 – Great if you can afford

Medify Air MA-40-W2 V2.0 Air Purifier with H13 HEPA filter - a higher grade of HEPA for 840 Sq. Ft. Air Purifier, 99.9% | Modern Design - White (2-Pack)
  • A higher grade of HEPA - H13 Filters (higher rated than True HEPA) 99.9% particle removal.
  • Cleans a room up to 1,600 sq ft in one hour, 840 sq ft in 30 minutes, 420 sq ft in 15 minutes (CADR 330)
  • To make V2.0 quieter in 'Sleep Mode' and Speed 1 the ionizer is automatically turned off, on speed 2 and 3 it can be turned on/off as needed | CARB, Energy Star & ETL certified.
  • Tempered Glass panel (like your cell phone, easy to clean, won't scratch like cheap plastic models), Sleep mode and 3 fan speeds, 8 hr timer, night mode, child lock
  • Genuine Medify Replacement Filter: B0819583PQ, 110 Volt units, USA registered Lifetime Warranty

3. LEVOIT CORE 300 – Quite a machine for less than $100

LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White
  • High Performance: Enjoy fresh air in 12 minutes with the Core 300 True HEPA Air Purifier. Featuring VortexAir Technology and 360° air intake, the Core 300 refreshes the air 5x per hour in rooms as large as 219 ft² / 20 m²
  • Find Relief: Ease sneezing, congestion, and other allergy symptoms caused by airborne contaminants. The H13 True HEPA Filter works alongside the Pre-Filter and High-Efficiency Activated Carbon Filter to capture 99.97% of airborne particles 0.3 microns in size, such as dust, smoke, pollen, odor
  • Multiple Filter Choices: Choose from a variety of replacement filters to best meet your needs. The Toxin Absorber Filter specializes in wildfire, smoke and VOCs. And if you’re a pet owner, try the Pet Allergy Filter to capture pet dander and absorb unpleasant odors.
  • Most Silent Air Cleaner: Choose Sleep Mode at night and then forget all about your air purifier while you sleep. QuietKEAP Technology reduces noise levels to a near-silent 24dB, ensuring the Core 300 won’t get in the way of a good night’s rest.
  • Sleek Design: The Core 300 practically serves your home while blending in with your decor. Its award-winning design (Red Dot, 2020) and modern white finish help your air purifier fit anywhere in your home/bedroom/room.

4. Coway Airmega 300 – Not cheap but great for large spaces

Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode
  • Coway Mighty (AP-1512HH) is designed to accommodate room sizes up to 361 sq.ft (CADR: Dust 246 / Pollen 240 / Smoke 233 cb. ft.).
  • 4 Stage Filtration System (Pre-filter, Deodorization filter, True HEPA filter, Vital Ion) captures and reduces up to 99.97% of particles 0.3 microns in the air, including pollen, pollutants and other allergens. It also reduces volatile organic compounds and reduces odor.
  • Coway Mighty pollution sensor communicates indoor air quality in real-time. The brightly colored LED lets you know how clean or dirty your indoor air is every minute of the day. And it features a timer, and filter lifetime indicator.
  • Fan speeds available in 1, 2, 3 stages by manually setting up. While auto mode automatically optimizes the speed setting 1 through 3 based on the level of indoor air quality. When no pollution is detected for 30 minutes, the fan will automatically stop and set as Eco mode to save energy.
  • Timer feature allows the machine to run 1/4/8 hours before automatically powering off.

5. Sharp FPF30UH – Great for small spaces and tight budgets

Sharp, White FPF30UH True HEPA Air Purifier for Home Office or Small Bedroom with Express Clean. Filters Last up-to 2 Years for Dust, Smoke, Pollen, Pet Dander, 143 Square Feet
  • SMALL ROOMS: Designed for Rooms up to 143 sq. ft.
  • CADR Dust (101) / Smoke (92) / Pollen (109)
  • Long-Life TRUE HEPA Filter Lasts Up-to 2 Years (actual filter life will differ depending on the environment)
  • True HEPA Filter Captures 99.97% of Allergens as Small as 0.3 Microns that pass through the filter
  • The Library Quiet, Sleep Setting is Perfect for the Bedroom or Home Office (as low as 23 dba)

Airpura P600

The Airpura P600 is a top of the line air purifier with a top of the line price: $1,000. It is made in Quebec by Airpura Industries, Inc. This model has not only a high efficiency particle air (HEPA) filter, but also a carbon filter, a pre-filter, an ultraviolet lamp, and a titanium dioxide photocatalytic oxidizer. It has a high powered 560 cubic feet per minute fan (measured without the filters installed), and is one of the most powerful on the market. Though Airpura claims that the machine can purify the air in a 2,000 square foot area, practically speaking, it is probably more like 700 square feet, which is still pretty large.


The particular combination of filters in the Airpura 600 filters out a number of substances, including radon, formaldehyde, mercury vapor, exhaust fumes, molds, and a number of other substances you don’t want in the air you breathe. The pre-filter can be vacuumed with a brush attachment on a regular vacuum once a month and is expected to last for 12 months. The carbon filter really does its job, with its two inch thick carbon beds. The life of the carbon filter is estimated to be 24 months, but will vary depending on factors like indoor pets and cigarette smoke. The HEPA filter can last three to five years under normal use.

Airpura’s ultraviolet lamp is much more powerful than the ultraviolet lamps in other air purifiers and lasts for 13 months. The titanium dioxide photocatalytic oxidization grid, which is activated by ultraviolet light, breaks airborne particles down into smaller, non-toxic pieces. It is claimed to last for 18 months. This air purifier is powerful enough for use by people with compromised immune systems and those with sensitivities to multiple chemicals.

Nice features of the Airpura P600 include upward air flow with 360 degree uptake, which reduces drafts, and its extreme quiet at its lowest setting (28 decibels). On the highest setting, it registers at 62 dB, which is fairly quiet for the amount of power this air purifier has. The Airpura P600 is cylindrical, 22 inches high, and 15 inches in diameter. It is heavy at 45 lbs., but is on wheels.

Complaints are mostly limited to the high price of the air purifier itself, and the high price of replacement components like filters and the UV lamp. Replacing these on the recommended schedule could easily bring maintenance costs close to $500 per year. Another complaint is that it does not have automated controls, and no odor or dust sensors to automatically adjust the speed to match the level of air impurities. Such features are found on many less expensive air purifiers. There is also no remote control, which is a feature starting to be available with more mid-range air purifiers. Except for these drawbacks, the Airpura 600 is a high-end air purifier that is well built and does its job very well.

Advanced Pure Air Newport 9000

The Advanced Pure Air Newport 9000 is marketed by Real Spirit USA and is manufactured in China. It strongly resembles the Mitsubishi MHI-6800 Intelli-Pro, with a futuristic design and shape. The Advanced Pure Air Newport 9000 is sold at Costco, Sam’s Club, Amazon, and Target for just under $280. While it doesn’t contain any breakthrough technology, it does contain several air cleaning technologies in one package. It monitors air quality for both dust and odor and has an LED four-level display showing indoor pollution levels as well as a sensor that indicates when the filters need to be replaced or when the electrostatic collection grid must be cleaned. The fan speed adjusts to pollutant levels, and it runs fairly quietly on all speeds. Advanced Pure Air Newport 9000 Measuring 13.5 x 10 x 25.6 inches, the Pure Air Newport 9000 has air flow of 106 cubic feet per minute, which is fairly low power. While the manufacturer says that the machine can be used in rooms up to 750 square feet, this is a stretch. It is more suited to rooms of under 200 square feet in size for effective levels of air turnover. This air purifier has a series of filters including a washable pre-filter, an electrostatic precipitator, an activated carbon filter, a high efficiency particulate air (HEPA) filter, a photocatalytic oxidizer, an ultraviolet light, and a negative ionizer. The ultraviolet light is designed to kill dangerous microorganisms. It is a six watt lamp that emits at 254 nanometers, which is not very high powered. The electrostatic precipitator must be cleaned frequently and regularly to keep it working properly. This is true for many models that use electrostatic precipitators. But even when the electrostatic grid is dirty, the HEPA filter will continue to work, and if the grid is kept clean, the HEPA filter will last longer. The frequent cleaning of the electrostatic grid is perhaps the main gripe of users, but this is true of many air purifiers in this price range. It does not produce any ozone, and odor removal is slightly above average. The gaskets and seals do their job well, and this helps eliminate problems such as dirty air bypassing the filters. Each filter can be replaced independently, which is convenient for those who don’t like having to buy a suite of filters at once. The filters are inexpensive as well. Overall, the Advanced Pure Air Newport 9000 is a decent machine for the price. It is attractive, convenient, and easily portable. Though the series of filters and cleaners may be a bit of overkill, all the technologies are useful and the only drawback is the need for keeping the electrostatic grid clean for optimum performance. Update April 2020: The advanced pure air 9000 was a big deal back when we wrote this in 2010 but 10 years later it is very much obsolete. If you are interested in looking for a replacement then be sure to check out the air purifiers we recommend in 2020:

1.Best for Most People – LEVOIT Pet Edition
LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core P350 Grey
  • Genuine Replacements: Search for "p350-rf" or "B087R7ZFPB" for levoit 3-in-1 customized pet filter with ARC Formula to ensure excellent performance
  • Perfect Gift for Pet Families: Ideal for pet allergies, improve your air quality and help you and your pets relieve allergic symptoms such as sneezing, coughing, sinuses and heavy breathing. Ozone-free, approved by CARB, ETL listed and CA PROP 65 certified
  • High Powered: The Vortexair Technology offers an increased CADR of 141 CFM / 240 m³/h, handily covering rooms as large as 219 ft2 (20㎡) and refreshing the air 5 times per hour, perfect for bedroom, living room, dining room or pet room
  • H13-Grade True HEPA Filter: Reduces up to 99.97% of harmful air pollutants, smoke, pollen, mold spores, dust mites and other allergens as small as 0.3 microns from the air. This new fine non-woven fabric pre-filter is more effective than other common pre-filters at capturing floating hair, pet fur, pet dander, dust, fibers, lint
  • Sleep Mode & Timer: The QuietKEAP Technology keeps noise levels as low as 24dB. Set a timer for 2, 4, 8, or 12 hours, then turn off the display light to enjoy a perfect and undisturbed night of sleep. The pet lock button prevents your pets from tampering with any of the other buttons or settings

2. Budget-Friendly – $75ish Hamilton Beach TrueAir
Hamilton Beach TrueAir Air Purifier for Home or Office with Permanent HEPA Filter for Allergies and Pets, Ultra Quiet, Black (04386A)
  • High Performance Hepa Grade Filter: Captures 99% of pet dander, dust, dust mites, pollen, and mold / mildew spores as small as 3 microns from the air.
  • Easy to clean: Allergen reducing air purifier has a permanent Hepa-grade filter that easily vacuums clean.
  • Compact, stylish design: Allergen reducing air purifier is perfect in the office or in rooms up to 160 square feet
  • Versatile air care that fits anywhere: Position the unit vertically or horizontally to best fit in your bedroom, den, nursery, hallway or living room at home or at the office.
  • Quiet and powerful: Use whisper clean for extra quiet operation at night, the medium setting or the quick clean setting for more powerful air cleaning.

3. Winix 5500-2 – For those with bigger rooms
Winix 5500-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter
  • True HEPA filter captures 99.97% of airborne pollutants; dust mites, pet dander, pollen and other allergens as small as 0.3 microns
  • Washable AOC Carbon Filter, made from activated carbon granulars for removal of household odors. Decibels 27.8 dB
  • PlasmaWave acts as a permanent filter to safely break down odor, allergens, chemical vapors and other pollutants with no harmful ozone
  • Smart Sensors gauge the air and our Auto Mode adjusts the fan to filter the air as needed; with a sleep mode for silent night time operation
  • CADR rated for 360 square feet room size. Suitable for medium and large rooms; kids bedrooms, family rooms and kitchens

4. Coway Airmega 400 – If you need the very best or the largest space
Coway Airmega 400 Smart Air Purifier with 1,560 sq. ft. Coverage
  • Coway Airmega 400 room air purifier is designed to accommodate large room sizes up to 1,560 square feet and cleans the air at least two times per hour when used as recommended.
  • Coway Airmega Max2 filter—combined activated carbon and True HEPA filter—captures and reduces up to 99.97% of 0.3 micron particles in the air, including pollen, pollutants and other allergens. It also reduces volatile organic compounds by more than 99% and reduces fumes such as NH3 and CH3CHO. Includes washable and permanent pre-filter to catch larger dust particles.
  • Coway Airmega’s pollution sensor communicates indoor air quality testing in real-time. The brightly colored LED ring lets you know how clean or dirty your indoor air is, every minute of the day.
  • Coway Airmega has five fan modes: Smart, Sleep, Low, Medium and High. Noise level is nearly silent at lower speeds. Max noise at highest setting is 43.2 dB.
  • Coway Airmega is a smart, energy efficient air purifier with a three-setting smart mode to adapt to its surroundings. Fan speed automatically adjusts based on the room’s air quality and lighting conditions to improve air quality.