Best Air Purifiers of 2021

According to the US Environmental Protection Agency (EPA) indoor air can be five times more polluted than the outdoor air. As indoor air remains enclosed and not circulated as much as outside air, many pollutants tend to thrive inside, which increases the risk of respiratory infections, neurological problems, etc. for the occupants. Pet dander, pollen, dust mites, paint fumes, smoke released from cooking are some of the common types of indoor allergens that can deteriorate the air quality. Besides, lack of ventilation, dirty upholstery, and humid environments contribute to the harmful indoor environment, making children, aged population, and people with chronic conditions more vulnerable to numerous health issues. However, high-efficiency particular air (HEPA) filter can help to clean the bad indoor air by accumulating pollutants. It works to pull air into the machine at the base through a fan, the instilled filters catch the pollutant in the perforations, and the machine then releases the fresh air into the surroundings. A true HEPA filter can remove up to 99.9% of the dust particles, measuring as small as 0.3-micron diameter. Some types of air purifiers have charcoal filters that can absorb odors and harmful chemicals while others have UV filters that kill harmful microbes present in the surrounding air.
Here is a list of top ten air purifiers that provide effective protection against the indoor pollutants.

Coway AP-1512HH Mighty

Designed for rooms up to 361 sq ft., Coway AP-1512HH Mighty utilizes a decent 4-stage filtration process, including pre-filter (first stage), carbon filter (second stage), True HEPA filter (third stage), and ionizer (fourth stage). It not only uplifts the décor in the room, but also delivers excellent air filtering performance at a rapid speed. The Coway AP-1512HH Mighty air purifiers draws air from vents located at front, left, right, and bottom, and the filtered air comes out vertically upwards. While being on Eco mode, the device automatically adjusts the fan speed by collecting data from the quality sensor. If the air quality during the last 30 minutes of the device is excellent, the device will automatically turn off, and thus save electricity, reduce noise, and ensure filter quality.

The device features a timer option that facilitates those users who want to run the device for a specific period. The pre-filter requires to be cleaned between 14 to 28 days, but if you have pets, make sure to clean the filter as frequently as possible. The True HEPA filter captures 99.7% of airborne particles including dirt, mould spores, microbes, smoke, pet dander, etc., but the filter is not washable. However, the device comes with only one carbon filter so, replacing it would cost additional maintenance charges along with the hefty price of the device.

Blueair Blue Pure 211+

One of the most popular models from Blueair, Blue Pure 211+ is the #2 top-rated air purifiers tested by Consumer Reports. The filtration technology consists of pre-filter and 2-in-1 particle plus carbon filter with electrostatic charging (HEPASilentTM), which has almost the same efficiency as HEPA filters (99%). When it comes to handling the particulate contaminants, pre-filter can capture hair, lint and dust, etc. The super-efficient particle filter is made up of polypropylene, which requires to be washed off every six months. The activated mesh-type carbon filter is capable of trapping airborne chemicals, smog, cigarette smoke, volatile organic compounds (VOCs), etc. With a clean air delivery rate of 350 cubic feet per minute, the Blue Air Bluepure 211+ can clean air up to 525 sq. ft. five times per hour. The air purifiers has low noise profile, ranging from 31 to 56 dB(A), so one can process more air while generating less noise.

Levoit LV-H132

The LV-H132 is a first-of-its-kind compact air purifiers that can make a big difference to the air quality at home. The device has a modern but subtle clean look, which does not draw much attention. The LV-H132 has a simple set of controls, LED nightlight on and off, and a Smart Filter Change Indicator that signals when the filter should be changed. The lightweight and easy to move around air purification device boasts an excellent price. With three-stage filtration system, LV-H132 exhibits good performance, providing satisfactory air cleaning efficiency up to 94%. If one is buying a device solely on the basis of price and presence of HEPA purifiers, then Levoit-H132 is the perfect choice.

Pure Enrichment PureZone 3-in-1 True HEPA Air Purifiers

Unlike other cost-effective air purification systems that come with 2 or 3 filters, the PureZone 3-in-1 True HEPA air purifiers come with 4-filtration process including pre-filter, carbon filter, HEPA filter, and UV-C light. It works efficiently to catch the indoor allergens such as dust, pollen, hair/pet hair, dust mites, moulds, virus/germs, tobacco smoke, chemicals, VOCs, smoke/gas, and odors. The whisper-quiet operation of the air purifiers prevents disturbance while sleeping while the timer button automatically switches off fan after 2, 4, 8-hour time intervals. It is designed for spaces up to 200 sq. ft. so it might be the best choice for large spaces. The PureZone 3-in-1 True HEPA filter provides a high efficiency of 99.9% for trapping any particles down to 0.3 microns.

Austin Air HealthMate HM-400

One of the most popular air purifiers brands in the USA has earned the title of “America’s Favorite Air Cleaner” due to its powerful filtration technology. The medical-grade true HEPA model has been specifically designed to remove particulate matter as small as 0.1 microns. The top-notch filter is made up of carbon and zeolite, that work to remove fumes and odors from the air. The air purifiers comes with a complete air intake system that maximizes air flow while the PSC motor, which enhances durability of the machine. Besides being energy-efficient, it is also space-efficient as it is programmed to cover a much larger space than many comparable models.

Winix A231

Winix A231 is a well-built, durable, and strong air purifier that has the ability to vent out strong purifying air in short intervals, which makes it efficient for air purification. With four different phases of air filtration including the fine mesh phase, HEPA filter phase, activated carbon filter phase, and plasma wave cleaning phase, the Winix A231 is designed to clean a room with surface area of 230 sq. ft. The sleep mode operation makes it possible for one to have an undisturbed sleep while using the machine.

Coway AirMega 400S

The AirMega 400S is one of the most powerful air purifiers available in the market today. The product can purify air up to 1560 sq. ft. therefore, it is a perfect fit for very large areas such as living room, garages and workshops, commercial office spaces, and basements. The air purifier delivers a 2X ACH rating, meaning that the room air can be recycled twice each hour. The modern design of the device offers a perfect blend of form and function. Besides, the machine is lightweight and easy to move around. The air purifier is the best choice for allergy sufferers, people with high chemical sensitivities or exposed to high PM2.5 pollution, and anyone with large indoor areas to cover can opt for the super-efficient Coway AirMega 400S. The convenient remote feature on the unit provides the added benefit of a mobile application. The Eco mode saves energy and extends the longevity of filters by automatically turning off the device when air quality is good in the area.

Alen BreatheSmart 75i

Designed to remove 99.9% air pollutants including dust, pollen, smoke, etc. with H13 medical-grade HEPA filters, Alen BreatheSmart 75i is one of the best air purifiers available today. With an outstanding 400 CADR rating, the purification device can cover up to 350 cubic ft./min. without consuming much energy. The device features nine front panel finish options, that allows users to customize the air purifier as per their convenience. The very low noise output of the purification device allows users to have sound sleep. The Alen BreatheSmart75i can capture 99.97% of indoor pollutants as small as 0.3 microns pollutant particles such as dust mites, pollen, mould spores, etc.

According to the TechSci research report on Global Air Purifier Market By Filter Type (HEPA & Activated Carbon, Ion & Ozone, Electrostatic Precipitators, HEPA & Activated Carbon + Ion & Ozone, HEPA, Activated Carbon and Others), By End User (Residential, Commercial and Industrial), By Region, Competition, Forecast & Opportunities, 2025″, the global air purifier market is anticipated to grow at a formidable CAGR of around 13% owing to the rising pollution levels and improving air filter availability through multiple channels. Besides, the increasing product innovations and growing personal disposable incomes are contributing to the global air purifier market growth.

According to another TechSci research report on United States Air Purifier Market By Filter Type (HEPA + Activated Carbon, Pre-Filter + HEPA, HEPA and Others (Ion & Ozone, Electrostatic precipitator, HEPA+ Activated Carbon+ Ion Ozone, etc.), By End Use (Non-Residential/Commercial, Residential/Household), By Distribution Channel (Direct/Institutional Sales, Offline Retail Sales, Online Retail Sales), By Region, Competition Forecast & Opportunities, 2016 – 2026″, the United States air purifier market is expected to cross USD4300 million by 2026 owing to the rising concerns about indoor environment and increasing respiratory issues.