Last Updated: February 26, 2024
We are spending a lot of our time indoors these days. Prolonged exposure to poor indoor air may put us at risk for several ailments. According to the Environmental Protection Agency, under normal circumstances, air pollution indoors can reach concentrations five times higher than outdoors without fresh air cycling through your home. The situation can worsen if you have a pet, suffer from a respiratory disorder, or some form of allergy.
A decent air purifier can reduce some of those pollutants and help you breathe easier. Air purifiers use filters and fans to remove particles and circulate the purified air back into the room. These devices are powerful enough to clean the air in your living room, quiet and dark enough for you to sleep near them in a bedroom, and reasonably priced so that you can have multiple units spread across the house if required.
See also: Air Conditioner Dehumidifier Combo
Air purifiers are available in different configurations and cleaning capacities. While there are several great units available for the standard-sized rooms, they might not be as efficient in purifying large rooms, open office areas, spacious basements, and other such spaces. These air purifiers need to move large volumes of air while still cleaning efficiently.
Below are some of our top picks for large room air purifiers:
| Air Purifiers For Large Rooms | Coverage Area | Buy Link |
|---|---|---|
| Medify MA-112 Air Purifier | 5,000 sq. ft | Buy |
| Coway Airmega 400 Smart Air Purifier | 1,560 sq. ft | Buy |
| Austin Air A450A1 HealthMate Plus | 1500 sq. ft | Buy |
| Levoit Tower Pro True HEPA Air Purifier LV-H134 | 1170 sq. ft | Buy |
| Blueair Classic 680i Air Purifier | 775 sq. ft | Buy |
1. Medify MA-112 Air Purifier
The MA-112 is the flagship device of Medify Air- the woman and veteran, family-owned USA based Company. The premium looking Medify MA-112 follows the design philosophy of the Company’s flagship MA-40 air purifier.
The Medify MA-112 runs on a signature 4-stage air filtration system to capture and eliminate allergens, pet dander, and other harmful pollutants.
The Pre-filter covers the True HEPA filter and removes hair, fibers, and large particles like dander, thereby prolonging the life of the core filter.
The high-efficiency H13 grade TRUE HEPA filter can capture 99.97% of particles as small as 0.1 microns. This medical-grade filter can efficiently trap pollen, dust mites, and other tiny airborne allergens not visible to the naked eye. At the third level, the Activated carbon filter with carbon pellets removes toxic odors, smoke, and formaldehyde. Last but not least, the ionizer produces negative ions to charge particles and trap them inside the unit and give your air a fresh feel. It can be turned on/off.
All filters within the MA-112 are packed in a single cartridge for simplified replacement and reliable air-tight seal. However, the H13 HEPA filter comes with a small disadvantage. The filter lasts for only six months and costs about $69 to replace — quite high for a mid-range device.
The Medify MA-112 can clean up a room to 5,000 sq. ft in sixty-minute, 2,500 sq. ft in 30 minutes, 1,250 sq. ft in 15 minutes. The Medify MA-40 is certified by the CARB for meeting the safety ozone emission of 0.05 parts per million (ppm). The device has a rated power of 95 watts. While the air purifier is bulky, its footprint is no bigger than a dinette chair and is not obtrusive in any way. Furthermore, the device comes with wheels hidden under its body to provide easy portability without being concerned with the size and weight.
The noise level of the Medify MA-112 is measured to be 65 dBA at the highest speed, which is slightly on the noisier side. To lower the sound, the ionizer gets turned off automatically on speed 2 and 3. Medify MA-112 uses a tempered glass panel that is easy to clean and scratch-resistant.
The MA-112 features four fan speeds allowing you to choose the speed based on the room’s air quality, or the Smart Sensor will enable the Auto Mode and gives you thoughtless air cleaning. The air purifier comes with a 360-degree air distribution that ensures that clean air flows in all directions.
The MA-112 features Night Mode to limit the air purifier on the lowest speed, a timer to schedule the time off for 1, 2, 4, or 8 hours. Furthermore, it also boasts a Child Lock feature to avoid children or pets from changing the current settings. Finally, Medify MA-40 has one LED indicator for filter replacement so that you can live a comfortable life.
Medify Air is offering lifetime coverage on all parts and service on the product as long as the filters are changed every 2,500 hours of use or six months with genuine MEDIFY AIR filters. To enable the warranty registration, you need to register the device within 30 days, and commit to change authentic Medify Air’s filter every six months, as well as strictly follow the manual guide of Medify Air. The Company also offers a 30-day return policy.
Pros
- High-quality HEPA filter
- Accurate Smart Sensor
- Lifetime warranty
- Highest CADR 950 & Sq. Ft coverage
Cons
- Annual filter cost is high
- Quite noisy on the highest speed
Why Buy: The Medify MA-40 combines phenomenal performance, advanced technology, and premium design in an affordable price range, making it an ideal choice for mid to large-sized rooms.
2. Coway Airmega 400 Smart Air Purifier
The Coway Airmega 400 can provide coverage up to 1,560 square feet. The air purifier can be easily installed in large rooms, offices, or condominiums to tackle polluted surroundings. Coway 400 makes two air change per hour. The device uses a two-sided intake to draw air inside.
The Airmega 400 uses dual Max2 filters – a combination of activated carbon and True HEPA filter – that is capable of removing 99.97% particulate matter up to 0.3 microns from the environment, including pollen, pollutants, and other allergens. The air purifier also reduces more than 99% of hazardous volatile organic compounds such as cigarette smoke and other toxic fumes from wildfires and smog. It also reduces fumes, such as ammonia and CH3CHO. The air purifier is easy to set up, remove the packaging, plug in an electric outlet, and you are ready to go. Ensure that you remove the covers from the Max2 filters before starting the device.
The Max2 filter uses a washable pre-filter that traps larger particulates like hair, pet dander, and dust particles to assist the primary filter function optimally. The Airmega 400 uses a pollution sensor that monitors real-time indoor air quality. The brightly colored LED ring reflects how clean or dirty your indoor air in real-time. The air purifier is also equipped with an air-filter lifetime indicator that alerts when the pre-filters need to be washed, and the Max2 filter needs replacement.
Airway 400 comes with five fan modes: Smart, Sleep, Low, Medium, and High. Furthermore, the Smart mode comes with three settings that allow the air purifier to adapt to its surroundings automatically. The Coway air purifier comes with a 1, 2, 4, and 8 hours timer. The maximum noise generated by the air purifier at the highest setting is 43.2 dBA, while it is nearly silent at the lower settings. The device can be operated via button controls on top of the unit or through remote control.
The Airway 400 does not use an ionizer, thereby guaranteeing an ozone-free air purifier, and is certified by the California Air Resources Board (CARB). The AIRMEGA comes with a CADR rating of 340 Dust/ 350 Smoke/ 400 Pollen (cfm). Furthermore, it is Energy Star certified with energy consumption of 64 watts. The device comes with a limited manufacturer warranty of one year on internal malfunctions, and five years for the motor and electronic parts for five years. Filters are not included in the warranty.
Pros
- Top-notch performance rating
- Well-built with highest quality materials
- Remarkable Technology and Fan Power
- Low Noise
- Extended Warranty
Cons
- High-cost filter replacement
Why Buy: The Airway 400 is an efficient performer and is almost whisper quiet. The device is aesthetically designed and comes with dual air intake, provides an excellent airflow rate, and boasts an array of features.
3. Austin Air A450A1 HealthMate Plus
The Austin Air HealthMate Plus Air Purifier specializes in reducing a variety of airborne contaminants, from common allergens to smoke, chemicals, and sub-micron particles. HealthMate Plus features an activated carbon filter bed to fight troublesome chemical odors, noxious gases such as VOCs, and formaldehyde, which is termed a “probable human carcinogen.” by the U.S EPA. Prolonged exposure to formaldehyde may lead to irritation in eyes, nose, and throat and may also aggravate existing respiratory ailments.
The HealthMate Plus is effective in combating formaldehyde odors as well as symptom-triggering allergens and other airborne odors. The air purifier is also well-suited in protecting people who have been exposed to wildfires smoke, living close to highways, and people who are sensitive to certain chemicals and gases found in the home.
HealthMate Plus uses a signature 360-degree progressive filtering system to draw air into all sides of the unit, which is moved through a 4-stage HEPA/carbon combination filter and is released back into the room. As per Austin Air, this filtration system is capable of cleaning air faster and efficiently as compared to conventional air purifiers.
The HealthMate Plus 4-stage combination filter comprises of:
PERMAFILT – The Air passes through a cotton PERMAFILT pre-filter, which captures dust and pet dander particles. At the next stage, a medium particle filter captures small to mid-size allergens, such as mold, pollen, and dust mites. Post this, the air passes through over 780 cubic inches of activated carbon infused with potassium iodide, and zeolite filtration removes odors, fumes, gases, and chemicals, including formaldehyde and benzene. Lastly, the air passes through a 60 square feet medical-grade HEPA filter, which scrubs the air from harmful bacteria and viruses as well as smaller pollen, mold, pet dander, dust, and ragweed particles.
Austin Air claims that this signature filtration system removes 99.97% of airborne pollutants larger than 0.3 microns, 95% of particles that measure 0.1 microns or less, and more than 3,000 kinds of toxic gases and odors.
The HealthMate Plus is manufactured in the USA. It is built from robust, long-lasting components, including an energy-efficient Permanent-Split Capacitor (PSC) motor, a powerful centrifugal fan, and an all-steel outer body to boost efficiency and energy savings. The durable PSC motor is designed for substantial use at high RPMs and is mounted on shock absorbers to minimize noise. While operating, the air purifier draws less current and reduces operating expenses by 50% as compared to other air purifiers.
The standard-sized HealthMate Plus has a max fan speed of 400 CFM and can efficiently cleanrooms up to 1500 square feet. The HealthMate Plus has been independently verified for filtration effectiveness by third-party and U.S. government labs.
The air purifier comes with easy controls that allow you to choose from 3 purification speeds using the simple manual knob. The device comes fitted with smooth-roll casters. Filter replacement is easy on the device; remove the bottom cover of the air purifier to access the old filter and replace it with a fresh filter.
Austin Air offers a 30-Day, no questions asked, money-back guarantee on the HealthMate Plus. The Company is also offering a 5-Year mechanical warranty and 5-Year Pro-rated Filter Warranty.
Pros
- Easy to Use
- Great Level of Filtration
- Long Filter Life
- Well built
- Cons
- Some people cannot tolerate potassium iodide
- Quite Loud on High Settings
Why Buy: The Austin Air A450A1 is highly effective in removing air pollutants as well as harmful chemicals and gases. While the device is a bit loud, it is highly durable and features long-lasting filters that will ensure you breathe clean air for a long time.
4. Levoit Tower Pro True HEPA Air Purifier LV-H134
The Levoit LV – H134 air purifier is designed to sanitize huge rooms, offices, kitchens, or even the whole house. The air purifier is capable of cleaning 1170 sq. ft room in 30 minutes and 710 sq. ft rooms in only 18 minutes and comes with a CADR rating of 312 CFM (530 m³/h).
The Levoit LV – H134 comes in a cylindrical shape with a modern touchscreen user interface. The top of the air purifier features a fin-like design that optimizes airflow throughout the space. The device draws in contaminated air from all sides through a powerful 360° suction and pushes filtered air from the top, purifying the air quickly and efficiently. The device is easy to assemble and has an intuitive menu. The LV – H134 comes with an indicator ring on the display that changes color based on the surrounding air quality. Blue indicates excellent condition, with greed depicting good, orange reflecting moderate air quality, and Red represents terrible air quality.
The Levoit LV – H134 features a three-stage air cleaning system to give you a breath of fresh air, cleared of allergens, particles, pet dander, dust, and mold spores. At the first level, an essential pre-filter traps large particles such as hair, pet fur, and dirt. At the central part, the H13-grade True HEPA filter captures 99. 97% of airborne particles as minute as 0. 3 microns. Lastly, the activated carbon filter absorbs odors from pets, cooking, and wildfire smoke.
The Levoit LV – H134 comes with a smart auto mode that uses a laser dust sensor to detect particles in the air accurately. It provides an accurate mass per volume (µg/m³) reading within 30 seconds and automatically adjusts fan speed settings to respond to real-time air quality.
The Levoit LV – H134 comes with a rated power of 45W, and consumes less energy than similar air purifiers. As per the Company, the air purifier will only cost $1. 36 per month / $0. 18 per kWh, even when being used 24 hours a day. The Levoit LV – H134 operates at a near-silent noise level of 25dB on Sleep Mode. At the highest setting, the Levoit LV – H134 generates a sound level of 55 dB
The Levoit LV – H134 comes with wheels on the bottom to provide easy mobility. The device comes with three fan speeds, an auto setting, a sleep setting, display brightness, filter replacement warning, and a timer function with a 1 to 12 hours functionality.
Pros
- Large Room coverage
- Stunning performance rating
- Solid-built
- Very quiet
- Low energy consumption
Cons
- Could have been equipped with a remote or mobile app
5. Blueair Classic 680i Air Purifier
Blueair has been a well-known brand in the air purifier space for the past 20 years. The 680i Air purifier is the successor to the Blueair Classic 605 and delivers a high level of CADR with the whisper-silent operation and high energy efficiency. The 680i is designed for maximum performance and can provide five complete air changes in sixty minutes in rooms up to 72m2.
The Blueair Classic 680i uses HEPASilent technology to deliver real HEPA performance to capture airborne particles such as dust, mold, pet dander, pollen, and gases, including cooking smells, pet odors, and formaldehyde. The HEPASilent technology leverages electrostatic charge and mechanical filtration by combining an advanced filter media with an encapsulated particle-charging chamber. This unique design enables the air purifier to deliver 99.97% filtration efficiency, all the way down to .01 micron.
The Blueair Classic 680i features dual protection filters with activated coconut carbon, that organically eliminate gaseous pollutants and smoke without using harmful chemical additives. The Classic 680i comes with Blueair’s unique ‘Aware’ air quality sensor that monitors air quality inside your room in real-time and adjusts the fan speed accordingly, ensuring the air you breath remains free of allergens and indoor air pollutants. The air quality sensor also continuously measures PM2 5 and VOC (gas) levels and displays them on a digital control panel.
The 680i can be connected to the Blueair Friend app to monitor your indoor air quality. The app is Wi-Fi enabled and is also compatible with Amazon Alexa, and allows you to adjust the fan speed as per the reading or set it in the auto mode, and also shares the Air quality data outside your room. The air purifier is Energy Star rated, certified by the California Air Resources Board for no ozone emissions. The 680i is also independently tested and verified by the Association of Home Appliance Manufacturers (AHAM) for clean air delivery rate (CADR): dust/200 cfm, pollen/200 cfm, and smoke/180 cfm in a 775 ft² room.
The Blue air 680i allows you to set a timer for the air purifier, including scheduling night mode, where it runs on noise and emits no light. The device comes with a touch control panel, where you can choose between 3 different fan speeds. The control panel also comes with a filter change indicator that tells you the filter needs to be replaced.
The compact 680i is incredibly quiet, and as per the Company generates the lowest noise in its class. The device is crafted from galvanized steel and is powder-coated for durability and environmental protection that produces no chemical off-gassing.
The 680i is easy to clean and would not pick up dust and oily stains. Blue air is offering a five-year warranty on the air purifier but recommends changing the filter every six months, depending on use and environment.
Pros
- Large Room coverage
- World-class performance and amazing air filtration
- Durable Unit
- 5-year warranty
Cons
- Bulky and heavy
- High power consumption
Why Buy: The Blue Air 680i means business. The air purifier is slightly hard on the ears and the pocket, but it is best at its primary task, which is to provide you clean air surroundings for a long, long time.
Things to consider while buying an air purifier:
Air Changes Per Hour (ACH) –
ACH is one of the most realistic indicators of the efficiency of the air purifier. The ACH ratings describe the amount of time the air purifier will exchange the air within a room with clean, fresh air in sixty minutes. For example, an air purifier with a 2x ACH rating would remove and recycle the dirty air with clean air two times per hour. The ACH rating is proportional to the maximum coverage area. For example, a product with a 3x rating in 500 sq. ft, won’t work with the same efficiency in a larger than specified area.
Clean Air Delivery Rate (CADR) –
CADR describes how efficiently the air purifier can clean the air within a particular size room.
The CADR rating measures three types of air pollution:
- Dust
- Tobacco Smoke
- Pollen
The measurement for each category ranges between 10-450 and is displayed as a set of three numbers. For example, an air purifier with a CADR rating of 200/220/190, describes 200 for dust, 220 for tobacco smoke, and 190 to pollen.
Look for air purifiers that are Energy Star-rated by the EPA.
Mobile App –
If you like to monitor the performance of your air purifier continually, you can look for Wi-Fi or Alexa enabled air purifiers to control from a phone or via voice commands.
Air quality sensors –
monitor the air for specific pollutants and automatically adjust the air cleaner to the level it needs to be to remove these particles quickly.
Casters –
Casters are a set of wheels that allow you to roll heavier machines from room to room
It can be a bit challenging to find an air purifier that can effectively purify the air, fits your lifestyle, and falls within your budget.