Clean Air Home Lab
Bedrooms

Best Air Purifiers for Bedrooms (2026)

A bedroom air purifier has two jobs. It has to be quiet enough to sleep next to. It has to be big enough for the room. These three picks are sorted by the noise and room size each maker publishes. We do not test products, so every number here is the maker's own.

Last updated: October 2026 · By the CleanAirHomeLab team

Quick Picks

  • Best overall for bedrooms: Levoit Core 300S, 22 dB at its lowest, 219 sq ft
  • Best for small bedrooms: Levoit Core 200S, 27 dB at its lowest, 140 sq ft
  • Best performance pick: Coway AP-1512HH, 24 dB(A) at its lowest, 361 sq ft

Setting up a baby's room? See air purifiers for babies and nurseries. Not sure what size you need? Use the CADR room size guide. Is dust the main worry? See air purifiers for dust.

Published Noise, Side by Side

This is the noise range each maker prints for its own unit. Makers do not all measure noise the same way, so treat a gap of a few decibels as a rough guide.

ModelLowest settingHighest settingFigure from
Levoit Core 300S22 dB50 dBLevoit
Coway AP-1512HH24 dB(A)53 dB(A)Coway
Levoit Core 200S27 dB48 dBLevoit

Our Bedroom Picks

Quiet operation

#1 Best Overall for Bedrooms

Levoit Core 300S

$149.99 list price

Lowest noise

22 dB

Noise range

22 to 50 dB

Room size

219 sq ft at 4.8 air changes an hour

CADR

141 CFM

Levoit lists the Core 300S at 22 dB on its lowest setting. That is the lowest figure of the three picks here. It is the smart version of the Core 300, so you can change the fan speed from your phone and stay in bed. Levoit rates it for 219 sq ft at 4.8 air changes an hour and labels it ozone free.

What We Like

  • 22 dB at its lowest, by Levoit's figure
  • Smart model, so you can control it from your phone
  • Levoit labels it ozone free
  • Small round body fits beside a dresser or on a nightstand

Watch Out For

  • 219 sq ft is tight for a large master bedroom
  • Needs an app set up before the smart features work
Check price on Amazon
Quiet operation

#2 Best for Small Bedrooms

Levoit Core 200S

$89.99 list price

Lowest noise

27 dB

Noise range

27 to 48 dB

Room size

140 sq ft at 4.8 air changes an hour

CADR

90 CFM

The Core 200S is the small one. Levoit rates it for 140 sq ft at 4.8 air changes an hour, which suits a small bedroom or a guest room. Levoit lists it at 27 dB on its lowest setting, with app and voice control. Its top speed is the quietest top speed here, at 48 dB.

What We Like

  • App and voice control
  • 48 dB at full speed, the lowest top-speed figure of the three
  • Smallest unit on this list

Watch Out For

  • 140 sq ft at 4.8 air changes an hour is the smallest room size here
  • 27 dB at its lowest is louder than the Core 300S at 22 dB
  • CADR of 90 CFM is the lowest on this list
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Best value

#3 Best Performance at This Price

Coway AP-1512HH

$239.99 list price

Lowest noise

24 dB(A)

Noise range

24 to 53 dB(A)

Room size

361 sq ft at 4.8 air changes an hour

CADR

233 smoke, 246 dust, 240 pollen

The Coway AP-1512HH is for a bigger bedroom. Coway rates it for 361 sq ft at 4.8 air changes an hour and lists it at 24 dB(A) on its lowest setting. It has an auto mode that changes fan speed when its dust sensor sees more particles. Coway lists the HEPA filter at one year and the odor filter at six months.

What We Like

  • 361 sq ft at 4.8 air changes an hour, by Coway's figure
  • Dust CADR of 246, the highest CADR number on this list
  • Auto mode changes fan speed for you
  • HEPA filter lasts one year, by Coway's schedule

Watch Out For

  • Has an ionizer. You can switch it off
  • Two filters to replace on two schedules
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Common Questions

Can I run an air purifier all night in my bedroom?+

Yes. That is what the lowest fan setting is for. On the picks here, the makers list the lowest setting at 22 dB for the Levoit Core 300S, 24 dB(A) for the Coway AP-1512HH and 27 dB for the Levoit Core 200S.

Which pick is the quietest?+

By the makers' own figures, the Levoit Core 300S is the quietest at its lowest setting, at 22 dB. The Levoit Core 200S is the quietest at full speed, at 48 dB. These are the makers' numbers. We do not test products.

What size air purifier do I need for a 300 sq ft bedroom?+

The EPA sizing chart lists a minimum CADR of 195 cfm for a 300 sq ft room with an 8-foot ceiling. The Coway AP-1512HH has a dust CADR of 246, so it clears that mark. The Levoit Core 300S has a CADR of 141 CFM, which the same chart matches to a room closer to 200 sq ft.

Affiliate Disclosure: Some links on this page are affiliate links and may earn us a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Our picks are based on the makers' published noise, room size and CADR figures, not commission rates. Full disclosure.

Sources and last review

Specifications on this page are taken from the documents below, on the dates shown. We do not physically test products; read our methodology. Page last reviewed .