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Home tools Buyer's Guides from tech enthusiast who loves technology and clever solutions for better living.
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Top Of The Best HEPA Air Purifiers Reviewed In 2018Last Updated November 1, 2018
№1 – GermGuardian AC4825 3-in-1 Air…
№2 – Levoit 3-in-1 Air Purifier with True HEPA Filter, 3 Speeds Plus Night Light, Odor Allergies Allergen Eliminator Cleaner for Home Room, Smoke Dust Mold, Ideal for Smokers, Pets Owners, 100% Ozone Free
№3 – Honeywell True HEPA Allergen Remover, 465 sq. Ft, HPA300
Blueair Classic 403
WHAT This product can effectively purify large rooms (up to 365sqft) like a living room or function room. It is able to capture 99.97% of the tiniest 0.micron particles, including allergy-provoking pollen, dust mites, mould spores, and pet dander just on the first setting,
PROS Comes with a convenient Change Filter indicator and is low on energy use
CONS Filters have to be changed regularly and may be noisy on high speeds
Honeywell 50250-S True HEPA Allergen Remover
WHAT Best used in a small area (36.2sqm) like the master bedroom or play area for kids, this air purifier is a popular choice among those who are prone to allergies. It removes at least 99.9percent of common household particles as small as 0.microns from surrounding air. The carbon-activated pre-filter helps remove common household odors such as dust, pollen, mold spores, tobacco smoke, and pet dander while helping to extend the life of the HEPA filter.
PROS Long lasting, comes with a 5-year warranty and filters are easily replaceable
Cost and Maintenance
The best part is the filter only needs to be replaced once every three to five years because the HEPA filter can be vacuumed. Furthermore, the 50250-S comes with an electronic filter indicator that tells you exactly when the filter needs to be changed.
Since many people do not need an air purifier for odor removal then the carbon filter will not need to be replaced every three months. This will end up with massive savings in the long run that others do not offer.
The downfall of this model is that the carbon filter is recommended to be replaced once every months which is very inconvenient. In addition, the design is absolutely hideous. It may do the job but I still really appreciate aesthetics in the household.
What to look for and avoid in an Air Purifier
What one should look for in an air purifier is the filter and how many square feet they cover. The best way to get a close estimation of how much square feet a unit covers is by multiplying CADR by 1.For example, the Honeywell HPA300 has a CADR of 300. To get a rough estimation of how much square feet it covers, multiply 300 by 1.to get the total of 450 Square Feet. This varies between companies and types of air purifiers.
An air purifier that uses Ozone to clean the air may cause irritation to the lungs which can cause problems to people with lung complications. However, most come with both a filter and ozone cleaning so it may be hard to avoid. Luckily, the UV-C or ozone cleaning feature can be turned on and off.
HEPA filters come in different classes, and it’s important to understand which class will give you the desired effect you seek. The E class has the lowest retention level, at between 8and 99.5%. From there, differences are minor- H class and U class filters give gradually higher retention levels up to around 99.99995%, as well as specified local retention ranging from 99.7-99.999%. Be sure to be attentive to class and retention level when considering a HEPA air filtration system.
Airflow Design Characteristics
Airflow design is important when considering the overall operation of the system. Higher or lower airflow can influence energy consumption and noise level. In addition to this, the environment may influence airflow resistance, so it is always important to gain a reading on the airflow characteristics of different HEPA air filters and find the one that best accommodates your environment.
How We Picked and Tested
Our guide to the very best HEPA air purifier has been exhaustively put together, encompassing four years in which new models have been assessed an accounted for. We are always looking for the next great air purifier, and this list will be of enormous help for you in choosing the best HEPA air purifier for your space. These past four years have allowed us to personally test over 40 air purifiers in our search for perfection. We’ve learned a lot along the way!
First, a pre-filter and a charcoal filter are often used to capture large particles such as dust and lint, as well as the usual household odors. Then, a True HEPA filter captures 99.97% of airborne particles (some as small as.microns in size) such as dust mites, debris, mold spores, plant pollens, and pet dander.
Let’s be clear: though the hefty price tag is not for most people, Blueair 50is still the most powerful air purifier, rated at (CADR) 375.
When filtering an area of 500 sq. feet in size and delivering an ACH rating of 4.changes per hour for smoke, pollen and dust, it is far more efficient than other models on the market.
The Blueair is also a world-renowned brand for air filters. The sleek Swedish design and the silent filtration technology makes this brand stand out amongst many other top-level brands.
This is one of the highlights of the shark, look at the basic filter, the dirty seems to stand for how well they work. fortunately, these filters are washable. the basic filter is a foam filter and post air return filter is a HEPA filter inside of an egg crate style frame. That is the grille you see on the front, easy to disassemble
One of the outstanding features of this air purifier is the silent operation of this model. It attributes different fan speeds that include turbo and sleep modes. Even when the air purifier is set on high power, it produces almost negligible sound. This device is great for bedrooms.
Internet reviews from customers praise the 503’s efficiency and Blueair’s excellent customer service. But there are complaints about the ON/OFF indicator light being too bright at night.
The hefty price-tag is not for most people the internal components will collect dust over time
Remember, it is not the pet hair, but the dander that your cats, dogs, and other pets produce that becomes airborne and causes allergy symptoms.
Pet dander is made up of small (even microscopic) flecks of skin shed by cats, dogs, rodents, birds and other animals with fur or feathers. Not all of us are affected by dander, but it can cause reactions in people who are specifically allergic to these triggers.
Small, lightweight pet allergens remain suspended in the air for a long time. Therefore, you are more likely to breathe in the dander and get allergic symptoms. For larger amounts of dust or pet hair, you can use HEPA vacuum cleaners to clean.
Rabbit Air BioGS 2.0
The award-winning SPA-625A is a stylishly designed air purifier that is user-friendly with comprehensive functionality. It features a beautifully clean design that doesn’t scream, “Hey, I’m an air purifier!”. The SPA625A has a hard steel exterior that gives it remarkable durability.
According to the feedback, most of the customers with allergies wake up with clear nostrils. No sneeze，no anything
Under normal use (running ten hours a day), the V-filter (an active charcoal filter only comes with the plus model) will last about two years. The HEPA lasts about four. It depends on the amount of dust and small particles in your air, but I think you have to replace the pre-filter more frequently. Same goes with odors. If you have odor problems, you may need to replace the active charcoal filter more frequently.
Dust is an unfortunate fact of life. While outside of a highly-regulated clean room we will never be completely free of dust, there are still many ways to help reduce the amount of dust in your indoor environment.
One particularly effective way to reduce household dust is to use an air purifier.
Why Honeywell 50250 Can Help Reduce Dust
Honeywell is one of the most excellent brands known for their outstanding quality in air purifiers.
This air purifier circulates the air in a room, and when it sucks in the air, it absorbs all the tiny particles that fall in it, including dust.
Air passes easily through the filter, but the possibly harmful particles are trapped in the active carbon. Although this air purifier cannot completely remove the particles, the air cleaner’s external grill functions as a deterrent by capturing large particles and preventing them from entering the unit for pre-filtration.
The large particles located in the unit are rapidly captured during the active carbon, which can also eliminate unwanted odors and extend the service life of the HEPA filter.
Low power consumption
Who wouldn’t like to have a low-energy consuming air purifier? At just 15.6-watt consumption on the lowest fan setting, you can be sure the air purifier will go a long way to helping you reduce your energy expenses. To put the watt consumption into perspective, the 15.6-watt consumption figure translates to 2.extra watts on what a light bulb normally consumes.
Rabbit Air MinusA2
When I have a baby, her health and safety is the primary concern in my life. I admit I put my baby in a safety net, no matter how expensive it is, to know my baby is safe.
Studies have shown that the air in the home usually contains a higher concentration of dangerous chemicals than the outdoors. High concentrations of chemicals in the family home come from cleaning products, indoor smoking, dander from pets, as well as airborne chemicals such as volatile organic compounds (VOCs) and electrical exhaust. Children also breathe more than 50% per pound than adults. beside air purifiers, there is a lot we can do
Buy indoor plants to remove the toxins in the air and provide oxygen.
AIR PURIFICATION TECHNOLOGIES
Every air purification technology has its strengths and weaknesses. In which case, an air purifier that offers multiple technologies is generally best, in order to combine the advantages, and eliminate the disadvantages of each air purification method.
An air ionizer creates negative ions, which change the polarity of airborne particles, causing them to magnetically attract together. As a result, they become to large to remain airborne, and fall out of the air that you breathe in. The most effective ionizers use a stainless steel “needlepoint” to produce negative ions.
Air Ionizer Strengths
Removal of particles from the air, including ultra-fine particles as small as 0.0microns.
Neutralization of viruses, bacteria, cigarette smoke and chemical fumes.
Can circulate throughout the room to remove airborne particles that are across the room from where the air purifier sits.
GERMICIDAL UV LAMP
Ultraviolet (UV) lamps effectively destroy micro-organisms that pass by the bulb, including germs, viruses, bacteria, and fungi (such as mold). UV Light radiation is recommended by the Centers of Disease Control to prevent illness and disease.
Ability to destroy micro-organisms, such as germs, viruses, bacteria, and fungi (including mold).
Ozone is a highly reactive oxidant that destroys certain bacteria and chemicals, including odor-causing bacteria and chemical agents. Ozone is highly effective against strong odors, but is not always needed or wanted under normal circumstances. In which case, it is best if it can be completely turned off if not desired.
Highly effective against odors, including cigarette smoke odors.
Can cause irritation of the eyes, nose, and throat if occurring in high enough concentrations.
Destruction of Micro-Organisms
Ozone and negative ions have some ability to destroy certain micro-organisms, but UV (ultraviolet) light is the most effective at destroying the greatest variety of micro-organisms. UV light destroys viruses, germs, bacteria, and fungi (such as mold) in order to help prevent illness and disease. The Surround Air “Multi-Tech” Air Purifier incorporates a UV lamp, ionizer, and ozone generator (which can be completely turned off) to team up against micro-organisms.
Air filters serve as a breeding ground for micro-organisms. The fabrics within an air filter allow micro-organisms attached to trapped dust particles to reproduce and/or breed. In which case, it is imperative that an air purifier (such as a Hepa filter) have a sanitizing device located next to the filter. Otherwise, the growing populations of microbes will be circulated into the air. A UV lamp, ionizer, or ozone generator can be used for this purpose, although a germicidal UV lamp is most effective at destroying micro-organisms.
The UV lamp in the Surround Air “Multi-Tech” Air Purifier is placed directly behind the air filter cartridge, enabling it to thoroughly sanitize the air filter. The Multi-Tech also has an ozone generator located near the filter that can be activated for even added filter sanitization.
Winix 5300-Air Purifier
This filter is the same size and uses the same fan and sensors as the 5500-2, and is also rated to 360 square feet. It comes in only one color, doesn’t come with a remote, and has slightly more charcoal in it’s filter—but not enough to meaningfully reduce VOCs and odors.
How we tested
For 201we conducted two new tests of air purifiers. John Holecek re-created his 201lab tests in a new round of testing, including new models. Tim Heffernan did a week-long real-world test—the first of its kind that we know of—using Wirecutter picks and competitors in a New York City apartment.
The lab results give a measure of absolute performance under controlled conditions and act as a baseline for comparison of the air purifiers’ performance. The real-world results give something equally useful: a detailed picture of how our air purifiers performed in an everyday home (wool rugs, pollen, city air, a cat)—and, as it happened, in the middle of a stretch of hazardous outdoor air quality.
Both tests concentrated on particle filtration; John also measured VOC (molecular) filtration, noise levels, and ownership cost over time.
Between the two writers, they re-tested our longstanding main pick, the Coway AP-1712HH Mighty; our runner-up, the Winix 5500-2; and our pick for VOC removal, the Austin Air HM-400. We also tested five new purifiers:
In 2014, John measured all of that year’s test purifiers for their effectiveness at removing VOCs, or molecular pollution. He added milliliters of ethanol to a Pyrex dish heated to 50 degrees Celsius (12°F), where it quickly evaporated, and used a fan to distribute the vapors through the test lab. He then measured the concentrations of ethanol vapor at the beginning (averaging about 3parts per million), and again after 1minutes of running the air purifiers at their highest moderate speed. (Test equipment was an RAE Systems miniRAE 3000 VOC meter.)
The results from the VOC testing were illuminating. While most air purifiers we tested claimed to be effective at removing VOCs, most had almost no impact, including the Coway AP-1512HH Mighty (our main pick). That’s because most use only a thin sorbent filter of activated carbon, alumina, and/or zeolites (a class of minerals with a unique physical form that means they can act as molecular filters). However, one model stood out: The Austin, which contains 1pounds of activated carbon and zeolite, left only 1percent of baseline ethanol remaining.
Both upfront and operating costs are a significant part of owning an air purifier. These units can be expected to last for several years, so we took a long view at the cost of ownership of our picks, including the purchase price, electrical consumption, and recommended filter replacement schedule, using the shortest time for filter replacement if a range was specified.
2016/1cost calculations. Purchase cost as of August 201Note: The Austin filter lasts five years, so the annual cost is calculated by dividing its price by five.
Real-world test details
For Tim’s real-world tests, he pitted seven air purifiers against the New York City summer air. As it happened, the week he ran the tests was one of the worst, in terms of air pollution, of 2018, with temperatures in the high 90s and numerous health advisories related to outdoor air quality.
He measured the purifiers’ performance against particulate air pollution with a TSI Aerotrak 9306, a professional-grade handheld particle counter capable of measuring particles down to the HEPA-standard 0.3-micron size.
His “lab” was the back room of his Queens apartment. It’s approximately 200 square feet (18.square meters; 1feet by 12.feet), with 8-foot-ceilings. The floor is hardwood but mostly covered with old wool rugs. There’s some wood furniture and a daybed with a wool blanket. The building is across the street from a well-planted city park and in the middle of a very leafy neighborhood. Elevated trains run past two blocks north and two blocks south, and two major thoroughfares—Queens and Northern boulevards—are just a few blocks farther. Big Alice, the city’s largest power plant, is a mile or so west; three highways, the BQE, the LIE, and the GCE, are a similar distance east, north, and south. He lives just outside the usual approach flightpath to LaGuardia International Airport. And he has a cat. Simply put: His apartment is a good place for testing particulate air pollution, from pollen, dust, and pet dander to soot and exhaust.
The week he ran the tests was one of the worst, in terms of air pollution, of 2018, with temperatures in the high 90s and numerous health advisories related to outdoor air quality.
He set each air purifier 1inches from one of the long walls of the back room, about a third of the way from one end of the room. He set the particle counter 6.feet (meters) away, 90 degrees to one side of the purifier, about a third of the way from the other end of the room. This was to avoid any potential “halo effect” of cleaned air settling near the purifier and creating a false reading.
The TSI Aerotrak 930detects particles as small as 0.micron, which is the standard for HEPA certification. Photo: Tim Heffernan
Tim ran two tests on each purifier: a 20-minute cycle on the sub-55-decibel setting (medium/midrange on most machines), and a 30-minute cycle on the high setting. Each test consisted of 20 or 30 45-second sensing periods, separated by 15-second periods with the particle counter idling, in order to generate a minute-by-minute picture of how the purifiers were performing.
Immediately prior to each test, he took a 45-second reading on his balcony, to set an outdoor baseline, and another in the test room with the purifier off, to set the indoor baseline. He then turned on the purifier and left the room for the duration of the test.
Each morning, before any tests, he simply measured the particulate levels in the back room for 20 minutes, to get a baseline on how the room was “behaving” that day: Even in still air, particulate levels vary as particles clump together, settle on surfaces, or kick back up if someone (like a Wirecutter writer) walks past.
He did not attempt to hermetically seal the room—after all, we wanted to see how the machines performed in real-world conditions—but did take two steps to make it more like a typical home with central HVAC. Tim sealed off the through-wall air conditioner with foil and tape, in case of leaks around the perimeter—most homes don’t have large holes in their outer walls. And he closed the vents on his apartment’s two forced-air ventilation shafts, which draw about 200 cubic feet of air per minute out of the apartment—and a corresponding amount into it from outdoors. (Central HVAC, by contrast, recirculates the inside air.)
After the back-room tests were finished, he conducted two additional tests. First, on a handful of units (our main pick and the large-room models), to see how they performed when running on high in a large space (the 600-square-foot living room-kitchen-dining area-hallway), with the AC on and people moving around as they normally would. And second, on our main pick, to see how it performed overnight on low with the air conditioner blasting and a guest using the daybed in the back room.
As in the lab tests section above, these graphs show the test models’ absolute performance when measured against the initial particle concentration, but in Tim’s real world apartment. And again, they show the percent change each purifier achieved, allowing for direct comparison of purifier performance by eliminating differences in initial pollution levels. The key takeaways here:
In 2018, we also tested the Dyson Pure Hot + Cool Link for particulate performance in the lab and in the real-world New York apartment. It offers two distinct fan functions, diffuse and focused; we tested it on both functions in the lab and in the real world. John further tested the Hot + Cool Link for VOC removal in the lab, given that Dyson received an upgrade of its VOC filter since our 201test of its predecessor. In every case the Dyson delivered disappointing performance relative to our pick. On particulates, it proved considerably less effective, reducing particulates by roughly 2or 50 percent (low and high fan settings respectively), versus 50+ to 85+ percent from other models. And as a VOC filter, it barely reduced the pollution level beyond the background conditions: to 34.parts per million (of vaporized ethanol) in 1minutes on the highest fan speed, versus the 36.ppm background level over the same timeframe—a percent reduction. Compare that to our pick for VOC removal, the Austin Air HM-400, which achieved an 8percent reduction in our 201lab test. It’s only fair to note that the Dyson is a unique machine, combining the functions of a fan, a space heater, and an air purifier—both HEPA (particulate) and VOC (molecular)—no other purifier we tested attempts this broad utility. But the Dyson Pure Hot + Cool Link objectively underperformed simpler, single-function air purifiers that also cost much less. Given its high upfront cost and relatively weak performance, we can’t recommend it.
Molekule advertises its technology as PECO—photo-electrochemical oxidation. It is a variant of photocatalytic oxidation, or PCO, which came to prominence in the 1990s, as a way of eliminating ethylene—a ripening agent naturally produced by fruit—in cold-storage fruit warehouses. In the early 2010s, a PCO home purifier, the Airocide, was introduced to great fanfare but deeply dubious results. Molekule’s PECO variant is 1to 100 times faster than what we’ve seen before, but Molekule says (in our lengthy interviews and in its own literature) that the fundamental chemistry is similar if not identical.
Honeywell HPA 300
The Honeywell HPA 300 is one of the most popular air purifiers with HEPA Allergen Remover Filter. It has manageable noise level, convenient side handles, and low-profile design. This machine can effectively remove indoor pollutants; especially dust particles from your home. It also efficiently removes smoke particles.
This air purifier features three air-cleaning levels allows you to adjust the airflow through the filter. However, it does not have an air-quality sensor or auto mode to adjust these three cleaning levels. It features an operation timer that enables you to set it for 2, or hours, easy tap control buttons, and turbofan mode. This unit also has a filter monitor to help you keep track of when to change the filters.
It is a decent air purifier that effectively removes dust and smoke from your home, and activated carbon reduces common household odors. Though it lacks some features like auto mode and remote control, this cleans the air of your home effectively. And it comes with a five-year warranty that protects you against manufacturer defects.
Winix WAC9500 Ultimate Pet
The Winix air purifier is a top-rated air purifier because it uses a patented PlasmaWave Technology, which is not found in other air purifiers. This innovative feature offers the same air cleaning advantages of an ionizer without producing harmful side effects or ozone. The PlasmaWave technology eliminates the toxic contaminants.
This Winix WAC9500 features 5-stage cleaning system with a Pre-filter, Clean-Cel Anti-bacterial treatment, True HEPA filter, carbon filter and PlasmaWave. It is specially designed for the pet owners to help them eliminate microscopic pet dander and hair that cause allergies and breathing problems.
It features two smart sensors, which individually monitor the room for an increase in odors and dust, and adjust the unit automatically to quickly remove these types of contaminants. A light sensor in this unit puts it into sleep mode while you’re asleep or the lights go dim. It comes with only one-year warranty.
Whirlpool Whispure AP51030K
The Whirlpool Whispure AP51030K is a powerful air purifier that can easily clean the air in large rooms. This offers the best clean air delivery rates (CADR) out of all models and is effective at removing indoor pollutants from your home. It uses the formula developed by the Association of Home Appliance Manufacturers.
It is very effective at removing smoke, dust, and pollen from the indoor air. This purifier is ideal for those having allergies and breathing-related problems as it almost makes air changes in one hour. It only has two cleaning stages to remove particulates from the air.
Though it features sleep mode that lets you sleep without any disturbance and also saves energy, it lacks an auto mode that would automatically adjust the settings based on the air quality of the room. It is one of the quietest air purifiers and is Energy Star verified; also has AHAM, ARB, and UL-Listed marks certifications.
The Airmega 400S is great home air purifier that filters environmental toxins with two industrial-grade HEPA filters. Its unique design makes it capable of running relatively quietly (5dB) even on its highest airflow setting.
It has a multicolored light ring on the front of the unit to indicate air quality (colors range from blue-green, green-yellow, orange-red and pink), from good to unhealthy. This air purifier is equipped with Wi-Fi and can be controlled remotely. The company’s mobile app provides a superior machine interface for controlling the device and monitoring air quality.
It features a Smart Mode (Auto, Eco, and Sleep) that adjusts purifier performance based on air quality. The differential pressure sensor detects filter performance and alerts the user when it’s time to replace the filters. It comes with 5-year warranty.
Dyson Pure Hot Cool Link
This Dyson Pure Hot Cool Link air purifier is as stylish as it is rich in features. It not only cleans the air in your home from allergens and pollutants through a powerful HEPA filter but also heats and cool it when you want. This air purifier features Wi-Fi connectivity that allows users to control the device’s mode via smartphone or tablet.
It uses a 360º Glass HEPA filter and claims to capture 99.97% of the allergens and pollutants from the air of your living space. The active carbon layer captures odors and harmful toxins. It features auto mode, sleep timer and a nighttime mode, and an easy-to-clean aperture.
The Dyson Link app provides real-time air quality reports and allows you to remotely control your device. The Dyson Pure Hot + Cool Link is, without a doubt, the most technically advanced air purifier the company has ever released and it may not be for everyone. It is comparatively expensive.
Hamilton Beach TrueAir
The Hamilton Beach TrueAir is reasonably priced compact air purifier and is designed especially for those who own pets. Its permanent filter can be cleaned with a vacuum, which allows a user to save quite a bit on pricey replacements. This is ideal for small spaces.
The permanent HEPA-grade filter effectively removes up to 99% of airborne irritants and allergens. With a versatile compact design and removable base, it can be set up in either horizontal or vertical position on desk or shelf or floor. Its streamlined front is designed to reduce the fan’s noise level for quiet performance at any speed.
It features whisper clean for quiet nighttime use and has three speeds, low, medium and high. This Hamilton Beach air purifier is ideal for anyone who wants an air purifier that needs very little maintenance and those who don’t want to deal with filter changes and replacement costs. It comes with one-year warranty.
Common Household Air Pollutants
Since different air purifiers feature a different type of filtration technology so they target different types of air pollution. It is important to know about the pollutants you want to eliminate from your home before buying an air purifier.
Airborne particles include pet dander, mold spores, dust mite allergen, pollen, plant spores, and fungi. Tobacco or wood-smoke, cooking odors, gaseous pollutants like indoor-pesticides, and aerosols and chemical cleaners are other types of pollutants. Volatile Organic Compounds (VOCs) commonly found in paints, varnishes, cleaning supplies, disinfectants, glues, and adhesives, and new carpets and building supplies are also pollutants found in our homes. The other pollutants are the microorganisms like antigens, pathogens, bacteria, and viruses.
Some air purifiers emit harmful ozone while purifying the air that is dangerous lung irritant for children, elderly and those with asthma. You should avoid buying such air purifiers and better look for CARB (California Air Resource Board) certified air purifiers.
Initial cost isn’t the only expense that is related to operating an air purifier. HEPA air purifiers range from affordable air purifiers for small to large spaces. You should also consider checking the annual cost of replacement filters.
First of all thanks for reading my article to the end! I hope you find my reviews listed here useful and that it allows you to make a proper comparison of what is best to fit your needs and budget. Don’t be afraid to try more than one product if your first pick doesn’t do the trick.
Most important, have fun and choose your HEPA Air Purifiers wisely! Good luck!
So, TOP3 of HEPA Air Purifiers
- №1 — GermGuardian AC4825 3-in-1 Air…
- №2 — Levoit 3-in-1 Air Purifier with True HEPA Filter, 3 Speeds Plus Night Light, Odor Allergies Allergen Eliminator Cleaner for Home Room, Smoke Dust Mold, Ideal for Smokers, Pets Owners, 100% Ozone Free
- №3 — Honeywell True HEPA Allergen Remover, 465 sq. Ft, HPA300