Best Air Purifiers for Bedrooms: Quiet, Dark and Properly Sized
The best bedroom air purifiers for low noise, a dark display and enough certified CADR to run slow: Blueair 411i Max, Levoit Core 300-P and more.
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The best air purifier for most bedrooms is the Blueair Blue Pure 411i Max. AHAM Verifide rates it at 145 cfm of smoke CADR for a 225 square foot room, and Blueair quotes 18 dB on its lowest setting, the quietest figure among our picks. For a cheaper purifier with no electronic stage, the Levoit Core 300-P has almost the same certified airflow and a $29.99 filter.
Bedrooms are a noise problem more than an airflow problem. The trick is to buy enough CADR that the purifier reaches about five air changes an hour on a low speed, and to choose one whose display goes fully dark. Every pick below has a sleep or night mode with dimmable or switchable lights.
Our top picks at a glance
1. Best overall for bedrooms
Blueair Blue Pure 411i Max (2-pack)Smoke CADR: 145 cfm (AHAM) · Room size: 225 sq ft (AHAM) · Lowest noise: 18 dB (Blueair listing) · Lights off: Night mode, auto brightness
2. Best budget bedroom purifier
Levoit Core 300-PSmoke CADR: 143 cfm (AHAM) · Room size: 222 sq ft (AHAM) · Lowest noise: 24 dB (Levoit listing) · Lights off: Display-off button
3. Best for a larger bedroom
Levoit Eleva 300XSmoke CADR: 161 cfm (AHAM) · Room size: 250 sq ft (AHAM) · Lowest noise: See Levoit's listing · Lights off: See Levoit's listing
4. Best bedroom pick with no ionizer and cheap filters
Coway Airmega 200MSmoke CADR: Not listed by Coway or AHAM · Room size: 361 sq ft (Coway) · Lowest noise: About 24 dB (Coway, Mighty) · Lights off: Yes
| Pick | Smoke CADR | Room size | Lowest noise | Lights off | Buy |
|---|---|---|---|---|---|
| Blueair Blue Pure 411i Max (2-pack)Best overall for bedrooms | 145 cfm (AHAM) | 225 sq ft (AHAM) | 18 dB (Blueair listing) | Night mode, auto brightness | Amazon |
| Levoit Core 300-PBest budget bedroom purifier | 143 cfm (AHAM) | 222 sq ft (AHAM) | 24 dB (Levoit listing) | Display-off button | Amazon |
| Levoit Eleva 300XBest for a larger bedroom | 161 cfm (AHAM) | 250 sq ft (AHAM) | See Levoit's listing | See Levoit's listing | Amazon |
| Coway Airmega 200MBest bedroom pick with no ionizer and cheap filters | Not listed by Coway or AHAM | 361 sq ft (Coway) | About 24 dB (Coway, Mighty) | Yes | Amazon |
Best overall for bedrooms
Blueair Blue Pure 411i Max (2-pack)
Quiet Mark certified with an 18 dB low setting, 145 cfm certified, and an auto mode that dims itself.
- Smoke CADR
- 145 cfm (AHAM)
- Room size
- 225 sq ft (AHAM)
- Lowest noise
- 18 dB (Blueair listing)
- Lights off
- Night mode, auto brightness
Pros
- Quietest low setting here
- 2.5 to 20 W
- Blueair cites Intertek zero-ozone verification
Cons
- Electrostatic stage (CARB electronic)
- Single unit was out of stock on Amazon; the two-pack was in stock
In a 12 by 14 ft bedroom, the 411i Max gives about 6.5 air changes an hour on high, so its middle speed already does the job overnight. Blueair lists 2.5 to 20 W across its speeds. Read our 411i Max review for the filter details.
Best budget bedroom purifier
Levoit Core 300-P
143 cfm certified, a 24 dB sleep mode and a display-off button, for less money and cheaper filters.
- Smoke CADR
- 143 cfm (AHAM)
- Room size
- 222 sq ft (AHAM)
- Lowest noise
- 24 dB (Levoit listing)
- Lights off
- Display-off button
Pros
- $29.99 filter every 6 to 8 months
- Fan and filter only
- Small footprint
Cons
- No sensor; you set the speed
- Louder than the Blueair on its top speed
The Core 300-P is the simplest good bedroom purifier: set it to speed 1 or Sleep Mode, switch the display off, and it runs all night. See our Core 300-P review.
Best for a larger bedroom
Levoit Eleva 300X
161 cfm certified for 250 sq ft with an efficient fully sealed design, for main bedrooms a size up.
- Smoke CADR
- 161 cfm (AHAM)
- Room size
- 250 sq ft (AHAM)
- Lowest noise
- See Levoit's listing
- Lights off
- See Levoit's listing
Pros
- Integrated energy factor 6.48, high for its size
- CARB listed as mechanical
- A little more airflow than the Core 300
Cons
- Newer model with less track record
- Levoit's own coverage figure is the one air change number
AHAM lists the Eleva 300X (LAP-C341S) at 161 cfm smoke, 161 dust and 172 pollen for 250 sq ft, and its integrated energy factor of 6.48 is more than twice the Core 300's. For a 14 by 16 ft main bedroom it gives about 5.4 air changes an hour on high.
Best bedroom pick with no ionizer and cheap filters
Coway Airmega 200M
Coway's Mighty body without the ionizer, with a $59.79 yearly filter set and a light that switches off.
- Smoke CADR
- Not listed by Coway or AHAM
- Room size
- 361 sq ft (Coway)
- Lowest noise
- About 24 dB (Coway, Mighty)
- Lights off
- Yes
Pros
- Filter-only design
- One $59.79 set covers a year
- Room to spare in most bedrooms
Cons
- Not AHAM listed
- Boxier than the cylinders
For a main bedroom up to about 360 sq ft, the 200M has room to run on low. Coway is not in AHAM's directory, so the room size is Coway's claim. Our 200M review explains how it differs from the AP-1512HH.
How we chose bedroom purifiers
We looked for three things: enough AHAM-certified smoke CADR to give a typical bedroom about five air changes an hour on less than full speed; the maker's published low-speed noise; and controls that let the display go dark. CADR comes from the AHAM Verifide directory; noise and lighting from each maker.
Bedroom buying guide
Buy one size up so it can run slow
A purifier is loudest on high, and that is where its CADR is measured. If the CADR is about 1.5 times what your room needs, the purifier reaches five air changes an hour around its middle speed, which is much quieter.
| Bedroom | Floor area | 5 ACH | 7.5 ACH |
|---|---|---|---|
| Small, 10 x 11 ft | 110 sq ft | 73 cfm | 110 cfm |
| Standard, 12 x 14 ft | 168 sq ft | 112 cfm | 168 cfm |
| Main, 14 x 16 ft | 224 sq ft | 149 cfm | 224 cfm |
| Large main, 16 x 18 ft | 288 sq ft | 192 cfm | 288 cfm |
Reading noise figures
Makers quote decibels at the lowest speed, sometimes measured at a distance they do not state. Treat a figure below 25 dB as near silent and 40 dB as a clear, steady fan sound. Several decibels apart is a real difference; one or two is not. A steady fan noise can mask street noise for some sleepers, which is why some people prefer a slightly louder low setting.
Light and placement
Look for a display-off button or a night mode, and a sensor light that does not flash when the auto mode changes speed. Put the purifier a few feet from the bed with the outlet pointed into the room rather than at your face, and keep its intake clear of curtains and bedding. More in our placement guide.
Close the door
A purifier cleans the room it is in. With the bedroom door closed, it is only fighting what enters through gaps and ventilation, so the air changes add up. With the door open, it is trying to clean the hallway too.
Do you need a sensor in the bedroom?
An auto mode raises the fan when particles spike and lowers it when the air is clean. In a living room, where cooking and foot traffic stir up particles, that is useful. In a bedroom at night, the air changes slowly and a fan that suddenly speeds up can wake light sleepers. Many people with a sensor-equipped purifier put it on a fixed low speed or sleep mode at bedtime anyway.
So a sensor is a convenience, not a requirement, for a bedroom. If you want one, prefer a purifier that lets you lock a sleep mode or cap the fan speed overnight. If you do not, the Levoit Core 300-P's fixed speeds are all you need.
What bedroom purifiers cost to run
| Model | Filters a year | Energy a year |
|---|---|---|
| Levoit Core 300-P | $45 to $60 ($29.99 every 6 to 8 months) | about $55 (317 kWh) |
| Blueair Blue Pure 411i Max | about $40 ($29.99 every 9 months, when in stock) | about $19 (110 kWh) |
| Levoit Eleva 300X | See Levoit's filter page | about $25 (145 kWh) |
| Coway Airmega 200M | $59.79 (one set a year) | Not listed by AHAM |
The Blueair and the Eleva cost far less to power than the Core 300-P because their integrated energy factors are much higher; over three years of nightly use, the difference in electricity is larger than the difference in purchase price.
What to skip
- Ionizers you cannot switch off, if anyone in the room has asthma. Pick a filter-only model or one whose ionizer turns off.
- Purifiers with bright, always-on lights.
- Undersized units run on high all night. They are loud and still slow.
For a baby's room, see the nursery picks; for allergies specifically, the allergy guide.
Frequently asked questions
What is the best air purifier for a bedroom?
The Blueair Blue Pure 411i Max: AHAM rates it at 145 cfm smoke CADR for 225 sq ft, and Blueair quotes 18 dB on low. The Levoit Core 300-P is a cheaper alternative with nearly the same certified airflow.
Should I sleep with an air purifier on?
If you have allergies or the air is smoky, yes. Run it on a low speed or sleep mode with the display off, and size it so that low speed still gives several air changes an hour.
How big an air purifier do I need for a bedroom?
For a 12 by 14 ft bedroom with 8 ft ceilings, about 112 cfm of smoke CADR gives five air changes an hour; about 168 cfm lets it do that on a quieter setting.
Where should I put an air purifier in my bedroom?
A few feet from the bed, with the intake clear and the outlet facing into the room rather than at your face. Keep the door closed for the best results.
Are air purifiers loud?
On low, good models are quiet: Blueair quotes 18 dB for the 411i Max and Levoit 24 dB for the Core 300-P. Top speeds are much louder, which is why buying a size up helps.
Do bedroom air purifiers help with snoring or sleep?
They remove particles such as dust, pollen and dander from the air; if those trigger congestion at night, cleaner air may help. They are not a treatment for snoring or a sleep disorder.
Sources
- AHAM Verifide Directory: Certified Room Air Cleaners, Association of Home Appliance Manufacturers
- Guide to Air Cleaners in the Home, US Environmental Protection Agency
- List of CARB-Certified Air Cleaning Devices, California Air Resources Board
- Levoit Core 300-P, Levoit
- Airmega 200M Air Purifier for Medium Rooms, Coway
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