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

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

Best Air Purifiers to Buy in October 2025

1 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

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

  • POWERFUL CLEANING: 56W MOTOR CLEANS 1,066 FT² QUICKLY & EFFICIENTLY.
  • QUIET OPERATION: HEPA-GRADE FILTER OPERATES SILENTLY IN SLEEP MODE.
  • COMPACT & LIGHTWEIGHT: EASY TO FIT IN ANY SPACE AT JUST 7.9 LBS.
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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
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

  • ELIMINATE ALLERGENS: CAPTURE DUST, HAIR, AND POLLUTANTS FOR CLEANER AIR.

  • ODOR NEUTRALIZER: ACTIVATED CARBON FILTER REMOVES SMOKE AND STRONG ODORS.

  • VERSATILE USE: ENJOY FRESH AIR IN ANY ROOM, DAY OR NIGHT!

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$41.99 $49.99
Save 16%
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 Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter & Air Quality Display

Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter & Air Quality Display

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$99.99
Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter & Air Quality Display
4 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

  • TRUSTED AHAM VERIFIED SEAL ENSURES RELIABLE AIR QUALITY.
  • ADVANCED FILTRATION CAPTURES 99.97% OF ALLERGENS EFFECTIVELY.
  • SMART CONTROL VIA VESYNC APP FOR CONVENIENT AIR PURIFICATION.
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$159.99 $189.99
Save 16%
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
5 Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter & Air Quality Display, Powerful Turbo Mode Air Cleaner for Pet Hair Odors Smoke Dust

Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter & Air Quality Display, Powerful Turbo Mode Air Cleaner for Pet Hair Odors Smoke Dust

  • DUAL AIR INLETS BOOST EFFICIENCY FOR 2,600 SQ. FT. COVERAGE.

  • TURBO MODE QUICKLY CAPTURES PET HAIR, DANDER, AND ODORS.

  • AUTO MODE ADJUSTS PURIFICATION BASED ON REAL-TIME AIR QUALITY.

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$166.99 $339.99
Save 51%
Air Purifiers for Home Large Room Up to 2600 Ft², HEPA Air Purifier with Washable Filter & Air Quality Display, Powerful Turbo Mode Air Cleaner for Pet Hair Odors Smoke Dust
6 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

  • CLEANS 361 SQ. FT. WITH 99.97% PARTICLE REDUCTION EFFICIENCY.

  • SMART POLLUTION SENSOR WITH REAL-TIME AIR QUALITY UPDATES.

  • QUIET, ENERGY-SAVING AUTO MODE WITH CONVENIENT TIMER SETTINGS.

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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
7 YARIKI Air Purifiers for Home Pets Covers Up to 1500 Sq Ft,H13 Hepa Filter with Washable Pre-Filter,Pet Hair Dander Smoke Air Cleaner,22 dB Quiet Sleep for Living Room Bedroom Kitchen,P280 (Black)

YARIKI Air Purifiers for Home Pets Covers Up to 1500 Sq Ft,H13 Hepa Filter with Washable Pre-Filter,Pet Hair Dander Smoke Air Cleaner,22 dB Quiet Sleep for Living Room Bedroom Kitchen,P280 (Black)

  • CLEANS 1500 SQFT IN 10 MINS: RAPID AIR QUALITY IMPROVEMENT!

  • PET-FRIENDLY HEPA FILTERS: BANISH DANDER, HAIR, AND ODORS!

  • ULTRA-QUIET & ENERGY-SAVING: SLEEP PEACEFULLY WHILE PURIFYING!

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$54.99
YARIKI Air Purifiers for Home Pets Covers Up to 1500 Sq Ft,H13 Hepa Filter with Washable Pre-Filter,Pet Hair Dander Smoke Air Cleaner,22 dB Quiet Sleep for Living Room Bedroom Kitchen,P280 (Black)
8 Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light,Portable Small Air Purifier for Home, Office, Living Room

Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light,Portable Small Air Purifier for Home, Office, Living Room

  • H13 HEPA FILTER: ENSURE A HEALTHY HOME ENVIRONMENT EFFORTLESSLY.

  • 360° AIR OUTLET: PURIFIES ROOMS UP TO 215 FT² FIVE TIMES PER HOUR!

  • QUIET SLEEP MODE: ENJOY PEACEFUL NIGHTS WITH ULTRA-SILENT OPERATION.

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$33.99
Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light,Portable Small Air Purifier for Home, Office, Living Room
9 Air Purifiers for Bedroom Home with Sleep Mode for Smoke Pet Dander Odors, Small Air Purifier with Fragrance Sponge, Blue Ambient Light, 23dB Quiet, 2 Pack White

Air Purifiers for Bedroom Home with Sleep Mode for Smoke Pet Dander Odors, Small Air Purifier with Fragrance Sponge, Blue Ambient Light, 23dB Quiet, 2 Pack White

  • PURE FRESHNESS: CAPTURES SMOKE, DUST, AND ODORS FOR HEALTHIER AIR.

  • 360° PURIFICATION: VERSATILE DESIGN FITS ANY SPACE FOR COMPLETE COVERAGE.

  • SILENT SLEEP MODE: ENJOY UNDISTURBED SLEEP AT AN ULTRA-QUIET 22DB.

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$55.99 $223.96
Save 75%
Air Purifiers for Bedroom Home with Sleep Mode for Smoke Pet Dander Odors, Small Air Purifier with Fragrance Sponge, Blue Ambient Light, 23dB Quiet, 2 Pack White
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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.