Best Air Purifiers for a Bedroom in 2026: Quiet, Dark and Sized to Run All Night

The best air purifier for a bedroom is one that cleans your room on a quiet speed, doesn’t light up the room at night and doesn’t run an ionizer while you sleep. Our pick is the Levoit Vital 200S-P: AHAM lists it at 250 cfm of smoke CADR for a 388 sq ft room, so a typical bedroom needs only a fraction of its output, Levoit rates it at 23 to 54 dB, and it has no ionizer. If quiet matters most, the Coway Airmega Mighty2 has the lowest published noise floor we found, at 19 dB.

How we chose

We don’t test purifiers. These picks come from manufacturer pages and manuals, the AHAM Verifide directory, the CARB certified list and ENERGY STAR, checked in October 2026 (see how we research). For a bedroom we looked for:

• A published low-speed noise figure. We only quote the decibels a maker publishes.
• Enough CADR to run quietly. CADR is measured at the top fan speed, and EPA notes that CADR at lower, quieter settings is often not published and can be much lower. A unit with plenty of headroom can stay on a low speed all night.
• Night features the maker documents: a sleep mode, a display you can switch off or a dedicated night mode.
• No ionizer, or a clear flag when there is one. EPA says ionizers and electrostatic cleaners may emit ozone. Every pick is CARB-certified, which caps ozone at 0.050 ppm but doesn’t mean zero.
• Power draw from AHAM or the maker, because a bedroom purifier runs for hours every night.

Some good purifiers didn’t make this list. The Winix 5520 (253 smoke CADR and 392 sq ft per Winix, 23.5 dB minimum) is a strong choice, but its PlasmaWave stage is an ionizer you have to manage; we cover it in our guide to the air purifier for a baby room. Honeywell’s new HPA4300 is AHAM-listed at 229 smoke CADR and has a Sleep mode, but Honeywell doesn’t publish its noise in decibels. Alen’s BreatheSmart 45i has no AHAM or ENERGY STAR CADR, so we can’t size it against the others.

Bedroom purifiers compared

Model	Smoke CADR / room size	Noise (maker)	Night features	Max power
Levoit Vital 200S-P	250 / 388 sq ft (AHAM)	23-54 dB	Sleep mode, Auto mode	52.4 W (AHAM)
Coway Mighty2 AP-1512N	240 (Coway) / about 372 sq ft*	19-50 dB	Sleep mode, 1-12 h timer	56 W (Coway)
Levoit Core 300S-P	144 / 223 sq ft (AHAM)	22-50 dB	Sleep mode, app schedules	37.9 W (AHAM)
Levoit Core 300-P	139 / 215 sq ft (AHAM)	24-54.5 dB	Sleep mode, display off	53.3 W (AHAM)
Blueair Signature Medium SP3i	321 / 498 sq ft (Blueair)	19-54 dB	Night mode	36 W (Blueair)

*Our math using AHAM’s formula (smoke CADR × 1.55). Coway publishes only a 1-air-change figure.

The best air purifiers for a bedroom

Levoit Vital 200S-P

Best for: most bedrooms, from a guest room to a good-size primary bedroom.

AHAM lists the Vital 200S (sold now as the Vital 200S-P) at 250 smoke, 254 dust and 289 pollen CADR, for a 388 sq ft room. In a 150 sq ft bedroom that’s far more than the 100 cfm minimum, which is exactly what you want: the purifier can sit on a low speed overnight. Levoit rates it at 23 to 54 dB. There’s a Sleep mode, an infrared dust sensor with Auto mode, and the VeSync app with Alexa and Google Assistant support. Filtration is a washable pre-filter, a main particle filter and activated carbon. CARB lists it as mechanical, and Levoit describes no ionizer.

The trade-off: AHAM lists the main filter as “HEPA-Type”, not True HEPA. Replacement filters are around $50 (Levoit says every 6 to 12 months), or around $60 to $65 for the Pet Allergy, Toxin Absorber and Smoke Remover versions. It isn’t ENERGY STAR certified, and Levoit doesn’t say whether its display can be fully switched off. It’s around $190 at Levoit.

Check the Levoit Vital 200S-P on Amazon

Coway Airmega Mighty2 AP-1512N

Best for: light sleepers who want the quietest published low setting.

Coway rates the Mighty2 at 19 to 50 dB and says it’s Quiet Mark certified. That 19 dB floor is the lowest of the purifiers we compared, tied with Blueair’s Signature line. Manufacturer CADR is 240 smoke, 242 dust and 249 pollen, which works out to about 372 sq ft by AHAM’s formula. A laser particle sensor runs Smart mode, and there are Sleep, Eco and Turbo modes plus a 1 to 12 hour timer. The filter set is a washable pre-filter plus a combined carbon and HEPA “Max2” filter rated for up to a year. CARB lists it as mechanical, with no ionizer.

The trade-off: Coway isn’t in the AHAM directory or the current ENERGY STAR list, so the CADR is Coway’s own. The front has a 4-color air-quality light, and Coway doesn’t say whether it can be fully switched off. It’s around $270 at Coway, and stock was patchy when we checked.

Check the Coway Mighty2 on Amazon

Levoit Core 300S-P

Best for: a standard bedroom where you want the purifier to follow a schedule.

AHAM lists the Core 300S-P at 144 smoke, 156 dust and 148 pollen CADR, for 223 sq ft. Levoit rates it at 22 to 50 dB. The VeSync app handles schedules and a timer, so you can have it run harder while you’re out and drop to Sleep mode at bedtime; it also works with Alexa and Google Assistant, and an AirSight Plus sensor drives Auto mode. AHAM measured 37.9 W at maximum smoke CADR, the lowest of the AHAM-listed picks here. CARB certifies the “Core 300S” as mechanical, and Levoit advertises it as “Ozone Free”.

The trade-off: 223 sq ft is enough for most bedrooms but leaves less headroom than the Vital 200S-P. Filters are around $30 to $40, and Levoit doesn’t publish an interval (the app shows filter life). AHAM lists the filter as “HEPA-Type”, and CARB lists two SKU codes as electronic even though Levoit mentions no ionizer. Levoit’s own 23 W rating is lower than AHAM’s 37.9 W measurement; we’d go by AHAM. It’s around $150 at Levoit.

Check the Levoit Core 300S-P on Amazon

Levoit Core 300-P

Best for: a small bedroom on a budget, especially if light at night bothers you.

AHAM lists SKU LAP-C302-WUSR, which appears to be the Core 300-P, at 139 smoke CADR for 215 sq ft. It has three speeds, a sleep mode, a 2 to 8 hour timer and a display-off option, which is the feature that matters most in a dark bedroom. Levoit rates it at 24 to 54.5 dB and advertises no ionizer, and CARB certifies the “Core 300” as mechanical. The single filter combines a pre-filter, a particle filter and activated carbon.

The trade-off: there’s no sensor, Auto mode or app. AHAM measured 53.3 W at top speed, more than the smarter Core 300S-P. Filters are around $30 to $40 with no published interval, and AHAM lists the filter as “HEPA-Type”. It’s around $90 to $100. We compare it with other budget units in our guide to the best air purifier under $100.

Check the Levoit Core 300-P on Amazon

Blueair Blue Signature Medium (SP3i)

Best for: a large primary bedroom or a bedroom with a sitting area.

Blueair lists the Medium Signature at 321 smoke, 309 dust and 330 pollen CADR for 498 sq ft, at 19 to 54 dB and 36 W. That’s a lot of clean air for relatively little power, so a big bedroom can still run on a low speed. The Signature line has Auto and Night modes, a motion-activated display, Wi-Fi with the Blueair app, and a design that doubles as a side table. Blueair sells its replacement filter for around $70.

The trade-off: Blueair’s HEPASilent design charges particles electrostatically, and Blueair publishes no way to switch that off. CARB certifies the SP3i (as an electronic cleaner), and ENERGY STAR measured 3 ppb of ozone on the larger Signature model, well under the 50 ppb limit but not zero. If you want no ozone-capable technology at all, choose the Vital 200S-P instead. The CADR here is Blueair’s figure. It’s around $300 at Blueair.

Check the Blueair Blue Signature on Amazon

How big a purifier does your bedroom need?

AHAM’s rule of thumb is a smoke CADR of at least two-thirds of the floor area, assuming an 8 ft ceiling. Some typical bedrooms:

• 10 x 10 ft (100 sq ft): at least 67 cfm.
• 12 x 12 ft (144 sq ft): at least 96 cfm.
• 14 x 16 ft (224 sq ft): at least 150 cfm.

For a bedroom, treat that as the floor, not the target. The rated CADR is what the purifier delivers on its loudest speed, and lower speeds deliver less. Buying a unit rated for about one and a half to two times your room lets it run quietly and still keep up. For vaulted ceilings, multiply the floor area by your ceiling height divided by 8, or use our air purifier size calculator.

Noise, lights and night modes

• Noise. Manufacturers publish noise differently, and none of our picks publishes a CADR for its quietest speed. Compare the low-speed figures (19 to 24 dB across our picks) as a guide, and size up so the low speed is enough.
• Lights. A bright air-quality ring can be a problem in a dark room. The Core 300-P has a documented display-off option. For the Coway and Vital 200S-P, the makers don’t say whether the display goes fully dark, so plan on a little light or some tape.
• Sleep and night modes. Every pick has one. What each mode does to fan speed and lights varies, so check the manual once it arrives.
• Auto mode at night. A sensor-driven Auto mode can ramp up the fan if dust is stirred up, which may wake light sleepers. Sleep mode or a fixed low speed avoids that.

Where to put it in the bedroom

Makers don’t publish a distance from the bed, so this is our advice. Put the purifier where nothing blocks its intake or outlet: not behind a headboard, under a nightstand or pressed against curtains. A few feet from the bed works well, close enough to clean the air you breathe and far enough that the airflow doesn’t blow straight at your face. Keep the cord out of the path you walk at night, and close the bedroom door if you want the purifier to keep up with a single room rather than the hallway too. Our guide on where to put an air purifier has more on clearance and placement.

What it costs to run all night

Bedroom purifiers mostly run at night, and on low speeds. Using each maker’s or AHAM’s maximum power as a worst case and the US average electricity price of 18.31 cents per kWh (EIA, July 2026), eight hours a night for a year costs about (our guide do air purifiers use a lot of electricity has the full method):

• Levoit Vital 200S-P (52.4 W): 153 kWh, about $28.
• Coway Mighty2 (56 W): 164 kWh, about $30.
• Levoit Core 300S-P (37.9 W): 111 kWh, about $20.
• Levoit Core 300-P (53.3 W): 156 kWh, about $28.
• Blueair Signature Medium (36 W): 105 kWh, about $19.

Those numbers are by our math and assume top speed the whole time, so a purifier on a sleep setting will cost less. Running around the clock roughly triples them. Plug in your own wattage, hours and rate with the air purifier electricity cost calculator. Filters usually cost more than the electricity, so check the yearly filter price before you buy.

Ozone and fragrance in the bedroom

EPA advises against air cleaners that intentionally produce ozone and says no federal agency has approved ozone generators for occupied spaces. Ionizers, electrostatic precipitators, some UV lights and plasma units may emit ozone too. That’s why we put the mechanical purifiers first and flag the Blueair. More detail is in our guide to air purifier side effects. We’d also skip aroma pads in a bedroom you sleep in every night, especially if anyone in the home has asthma.

What an air purifier can’t do

EPA says no air cleaner removes all pollutants, and filtration doesn’t replace controlling sources and ventilating. A purifier captures airborne particles such as dust, pollen and pet dander; it won’t clean the dust mite allergens already in your mattress and pillows, so washing bedding still matters. HEPA filters don’t remove gases, and the thin carbon in most bedroom units has limited odor capacity, as our HEPA vs carbon filter guide explains. If allergies or asthma keep you up at night, talk to your doctor about what will actually help. For a desk or nightstand-size unit instead of a room purifier, see our best small air purifier picks.