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How to Determine the Right Size Air Purifier For A Room?

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4 min read
How to Determine the Right Size Air Purifier For A Room? image

Best Air Purifiers to Buy in December 2025

1 LEVOIT Air Purifier for Home Allergies Pet Hair in Bedroom, Covers Up to 1073 ft² by 56W High Torque Motor, AHAM VERIFIDE, 3-in-1 Filter with HEPA Sleep Mode, Remove Dust Smoke Odor, Core300-P, White

LEVOIT Air Purifier for Home Allergies Pet Hair in Bedroom, Covers Up to 1073 ft² by 56W High Torque Motor, AHAM VERIFIDE, 3-in-1 Filter with HEPA Sleep Mode, Remove Dust Smoke Odor, Core300-P, White

  • AHAM VERIFIED: TRUSTWORTHY PERFORMANCE FOR CLEANER INDOOR AIR.
  • POWERFUL 143 CFM CADR CLEANS LARGE ROOMS UP TO 1,073 FT² QUICKLY.
  • GENUINE LEVOIT FILTERS ENSURE OPTIMAL PERFORMANCE AND LONGEVITY.
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LEVOIT Air Purifier for Home Allergies Pet Hair in Bedroom, Covers Up to 1073 ft² by 56W High Torque Motor, AHAM VERIFIDE, 3-in-1 Filter with HEPA Sleep Mode, Remove Dust Smoke Odor, Core300-P, White
2 LEVOIT Air Purifiers for Bedroom Home Dorm, 3-in-1 Filter Cleaner with Fragrance Sponge for Better Sleep, Filters Smoke, Allergies, Pet Dander, Odor, Dust, Office, Desktop, Core Mini-P, White

LEVOIT Air Purifiers for Bedroom Home Dorm, 3-in-1 Filter Cleaner with Fragrance Sponge for Better Sleep, Filters Smoke, Allergies, Pet Dander, Odor, Dust, Office, Desktop, Core Mini-P, White

  • BREATHE EASY: EFFECTIVELY REMOVES AIRBORNE POLLUTANTS AND ODORS.
  • VERSATILE USE: PERFECT FOR HOME, OFFICE, AND SOOTHING AROMATHERAPY.
  • TRUSTED BRAND: JOIN 6.5M+ SATISFIED CUSTOMERS WITH LEVOIT QUALITY.
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$49.99
LEVOIT Air Purifiers for Bedroom Home Dorm, 3-in-1 Filter Cleaner with Fragrance Sponge for Better Sleep, Filters Smoke, Allergies, Pet Dander, Odor, Dust, Office, Desktop, Core Mini-P, White
3 LEVOIT Air Purifiers for Home Large Room Up to 1875 Ft² with Washable Pre-Filter, AHAM VERIFIDE, Air Quality Monitor, HEPA Sleep Mode for Allergies, Pet Hair in Bedroom, Vital 200S-P, White

LEVOIT Air Purifiers for Home Large Room Up to 1875 Ft² with Washable Pre-Filter, AHAM VERIFIDE, Air Quality Monitor, HEPA Sleep Mode for Allergies, Pet Hair in Bedroom, Vital 200S-P, White

  • AHAM CERTIFIED FOR RELIABLE AIR QUALITY AND SAFETY STANDARDS.
  • POWERFUL AIR CLEANING FOR ROOMS UP TO 1,875 SQ FT.
  • SMART CONTROL & SCHEDULING VIA VESYNC APP FOR ULTIMATE CONVENIENCE.
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$199.99
LEVOIT Air Purifiers for Home Large Room Up to 1875 Ft² with Washable Pre-Filter, AHAM VERIFIDE, Air Quality Monitor, HEPA Sleep Mode for Allergies, Pet Hair in Bedroom, Vital 200S-P, White
4 Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White

Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White

  • ADVANCED 4-STAGE FILTRATION CAPTURES 99.97% OF AIRBORNE POLLUTANTS.

  • REAL-TIME AIR QUALITY MONITORING WITH EASY-TO-READ LED INDICATOR.

  • ECO MODE SAVES ENERGY BY AUTO-STOPPING WHEN AIR IS CLEAN.

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$229.99
Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White
5 Air Purifiers for Home Large Room Cover Up to 1500 Ft² with True HEPA Filter, 20dB Sleep Mode, 360° Air Intake & Outlet, Air Cleaner for Bedroom Pets, 7 Color Light, HAP604, Bright White

Air Purifiers for Home Large Room Cover Up to 1500 Ft² with True HEPA Filter, 20dB Sleep Mode, 360° Air Intake & Outlet, Air Cleaner for Bedroom Pets, 7 Color Light, HAP604, Bright White

  • RAPID AIR CIRCULATION: COVERS 1500 FT² WITH 360° AIRFLOW, REFRESHING AIR 5X/HOUR.

  • ADVANCED FILTRATION: 99.97% EFFICIENCY FOR PARTICLES AS SMALL AS 0.3ΜM.

  • WHISPER-QUIET DESIGN: OPERATES AT 20DB FOR PEACEFUL SLEEP AND AIR PURIFICATION.

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$169.99 $199.99
Save 15%
Air Purifiers for Home Large Room Cover Up to 1500 Ft² with True HEPA Filter, 20dB Sleep Mode, 360° Air Intake & Outlet, Air Cleaner for Bedroom Pets, 7 Color Light, HAP604, Bright White
6 Air Purifiers for Home Large Room, Cover Up to 2400 Ft² with True HEPA Filter, Smart Mode, PM2.5 Air Quality Display, 22dB Sleep Mode, Aromatherapy with 2X-Purification & 360°Air Outlet, HAP603, White

Air Purifiers for Home Large Room, Cover Up to 2400 Ft² with True HEPA Filter, Smart Mode, PM2.5 Air Quality Display, 22dB Sleep Mode, Aromatherapy with 2X-Purification & 360°Air Outlet, HAP603, White

  • 2X FILTRATION POWERS AIR PURIFICATION FOR SPACES UP TO 2400 FT².

  • REAL-TIME AQI DISPLAY ENSURES OPTIMAL AIR QUALITY MONITORING.

  • ULTRA-QUIET OPERATION WITH AROMATHERAPY FOR PEACEFUL SLEEP.

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$89.99 $349.99
Save 74%
Air Purifiers for Home Large Room, Cover Up to 2400 Ft² with True HEPA Filter, Smart Mode, PM2.5 Air Quality Display, 22dB Sleep Mode, Aromatherapy with 2X-Purification & 360°Air Outlet, HAP603, White
7 Air Purifiers for Home with H13 True HEPA Filter Up to 1076 Ft² for Pet Hair, Odors, Pollen, Smoke, Compact Air Cleaner with 3 Speeds, Timer, Aroma Quiet 360°Intake Filter, White

Air Purifiers for Home with H13 True HEPA Filter Up to 1076 Ft² for Pet Hair, Odors, Pollen, Smoke, Compact Air Cleaner with 3 Speeds, Timer, Aroma Quiet 360°Intake Filter, White

  • EFFORTLESS ONE-TAP OPERATION: CLEAN AIR MADE SIMPLE FOR EVERYONE.

  • COMPACT DESIGN COVERS 1,076 FT², PERFECT FOR ANY SPACE YOU NEED.

  • 99.97% POLLUTANT CAPTURE WITH H13 HEPA FOR PURE INDOOR AIR QUALITY.

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$26.99 $38.99
Save 31%
Air Purifiers for Home with H13 True HEPA Filter Up to 1076 Ft² for Pet Hair, Odors, Pollen, Smoke, Compact Air Cleaner with 3 Speeds, Timer, Aroma Quiet 360°Intake Filter, White
8 LEVOIT Air Purifier for Home Large Room Up to 1073Ft² with Air Quality Monitor, AHAM VERIFIDE, Smart WiFi, Washable Pre-Filter, HEPA Sleep Mode for Pets, Allergies, Dust, Pollen, Vital 100S-P, White

LEVOIT Air Purifier for Home Large Room Up to 1073Ft² with Air Quality Monitor, AHAM VERIFIDE, Smart WiFi, Washable Pre-Filter, HEPA Sleep Mode for Pets, Allergies, Dust, Pollen, Vital 100S-P, White

  • AHAM VERIFIED FOR TRUSTED PERFORMANCE & ENERGY EFFICIENCY!
  • PET MODE CAPTURES FUR & REDUCES ENERGY CONSUMPTION EFFORTLESSLY.
  • SMART CONTROL WITH APP: SCHEDULE, MONITOR, AND VOICE COMMAND!
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$139.99
LEVOIT Air Purifier for Home Large Room Up to 1073Ft² with Air Quality Monitor, AHAM VERIFIDE, Smart WiFi, Washable Pre-Filter, HEPA Sleep Mode for Pets, Allergies, Dust, Pollen, Vital 100S-P, White
9 BLUEAIR Air Purifier for Small Room, Bedroom, Home, Cleans 926 sqft in one hour, HEPASilent Air Cleaner for Pets, Allergens, Virus, Dust, Mold, Smoke - Blue Pure 511i Max

BLUEAIR Air Purifier for Small Room, Bedroom, Home, Cleans 926 sqft in one hour, HEPASilent Air Cleaner for Pets, Allergens, Virus, Dust, Mold, Smoke - Blue Pure 511i Max

  • SUPERIOR HEPASILENT TECHNOLOGY ENSURES FASTER, QUIETER AIR PURIFICATION.

  • CLEANS 465 SQFT IN JUST 30 MINUTES, REMOVING 99.97% OF POLLUTANTS.

  • APP-ENABLED FEATURES FOR SMART SCHEDULING AND AIR QUALITY MONITORING.

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$139.00
BLUEAIR Air Purifier for Small Room, Bedroom, Home, Cleans 926 sqft in one hour, HEPASilent Air Cleaner for Pets, Allergens, Virus, Dust, Mold, Smoke - Blue Pure 511i Max
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ONE MORE?

To determine the right size air purifier for a room, you should consider the square footage of the room and the Clean Air Delivery Rate (CADR) of the air purifier. Measure the dimensions of the room and calculate the square footage. Look for an air purifier that is designed to handle the square footage of your room. The CADR rating of an air purifier indicates the volume of clean air that the purifier can produce. Select an air purifier with a CADR rating that is suitable for the size of your room. Keep in mind that larger rooms may require multiple air purifiers or a single air purifier with a higher CADR rating.

What factors should I consider when selecting the right size air purifier for a room with open windows?

When selecting the right size air purifier for a room with open windows, consider these factors:

  1. Room size: The size of the room will determine the appropriate capacity of the air purifier. Measure the square footage of the room to determine the appropriate size unit needed.
  2. Airflow: Since the windows are open, the air purifier will be constantly filtering incoming outdoor air. Choose a unit with a higher airflow rate to quickly filter the increased amount of airborne particles.
  3. Filter type: Consider the type of filter used in the air purifier. HEPA filters are effective at capturing small particles, while carbon filters can help reduce odors. Choose a filter type that addresses your specific air quality concerns.
  4. Noise level: If the air purifier will be running frequently with the windows open, consider the noise level of the unit. Look for a quiet model if noise is a concern.
  5. Energy efficiency: Consider the energy efficiency of the air purifier, especially if it will be running for extended periods of time with the windows open. Look for units with low energy consumption to save on electricity costs.
  6. Portability: If you plan to move the air purifier between rooms or areas with open windows, consider the size and weight of the unit for ease of transportation.
  7. Brand reputation: Choose a reputable brand with positive customer reviews and ratings to ensure the air purifier is of high quality and performs effectively in a room with open windows.

What is the minimum square footage an air purifier should cover in a laundry room?

The minimum square footage an air purifier should cover in a laundry room depends on the size of the room and the level of air purifying needed. However, a good rule of thumb is that the air purifier should be able to cover at least the square footage of the room or space in which it is placed. For a small laundry room, a minimum coverage of 100 square feet should be sufficient. However, for larger laundry rooms, a higher coverage area may be needed. It is recommended to choose an air purifier that can cover at least 150-200 square feet for better air purification in a larger laundry room.

What is the best way to determine the right size air purifier for a multi-level home?

The best way to determine the right size air purifier for a multi-level home is to calculate the square footage of each level and then select an air purifier that is capable of covering the total square footage of your entire home. You can also consider the height of ceilings, as taller ceilings may require a more powerful air purifier.

Another factor to consider is the air purifier's Clean Air Delivery Rate (CADR), which measures the volume of clean air that the purifier can produce per minute. Look for an air purifier with a CADR rating that is suitable for the square footage of your home.

Additionally, consider the specific air quality concerns in your home, such as allergies, pet dander, or smoke, and choose an air purifier with the appropriate filters (such as HEPA or activated carbon) to address those concerns.

It is always a good idea to consult with a professional or read reviews to ensure you are selecting the right size air purifier for your multi-level home.