Buying guide · Air purifiers
The best air purifiers under $200
Our top picks: the Levoit Core 300 (best budget pick), the Levoit Vital 200S (most clean air under $200) and the Levoit Core 300S (best smart pick under $200). You don't need to spend much to clean one room's air. Every pick here lists for under $200 at its maker's own shop and has a verified CADR, so you know the room size you're paying for.
The cost that lasts is the filter, bought every 6 to 12 months for as long as you own the purifier. Each pick shows its filter's price beside its own.
Updated · 5 picks · figures from AHAM, Energy Star, NIOSH and the makers · no brand pays to be listed
Quick picks
Best budget pick
Levoit Core 300The cheapest purifier here, with the cheapest filter, changed every 6–8 months.
Most clean air under $200
Levoit Vital 200S250 cfm, verified by AHAM, enough for about 36 m²: the most clean air here, so it suits a living room as well as a bedroom.
Best smart pick under $200
Levoit Core 300SThe Core 300 with a laser particle sensor, auto mode and app control.
Best small smart pick
Levoit Vital 100SAbout 21 m² with a washable pre-filter, auto mode and app control, for a little more than the Core 300.
Quietest under $200
Coway Airmega 150Coway's bedroom model: 20 dB on its lowest setting by Coway's figures, a particle sensor with auto mode, and about 22 m² of everyday cleaning.
| Purifier | Smoke CADR | Everyday room | Smoky days | Quietest | Filter | Price |
|---|---|---|---|---|---|---|
| Levoit Core 300Best budget pick | 143 cfm | 21 m² (222 ft²) | 13 m² | — | $29.99every 6–8 months | $89.99at levoit.com |
| Levoit Vital 200SMost clean air under $200 | 250 cfm | 36 m² (388 ft²) | 23 m² | 27 dB | $49.99 | $169.99at levoit.com |
| Levoit Core 300SBest smart pick under $200 | 141 cfm | 20 m² (219 ft²) | 13 m² | 22 dB | $29.99every 6–8 months | $149.99at levoit.com |
| Levoit Vital 100SBest small smart pick | 143 cfm | 21 m² (222 ft²) | 13 m² | 25 dB | — | $119.99at levoit.com |
| Coway Airmega 150Quietest under $200 | 153 cfm | 22 m² (237 ft²) | 14 m² | 20 dB | — | $189.99at cowaymega.com |
Everyday room: AHAM's room size for the smoke CADR (about five clean-outs an hour). Smoky days: AHAM's stricter advice for smoke, a CADR at least equal to the floor area in square feet. Quietest: the maker's figure for its lowest setting. Filter: the replacement's list price at its maker.
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Best budget pick
Levoit Core 300
The cheapest purifier here, with the cheapest filter, changed every 6–8 months. Its 143 cfm, verified by AHAM, covers a bedroom of about 21 m². Buttons only.
- Cleans
- 21 m² day to day, 13 m² on smoky days
- Filter
- $29.99, every 6–8 months
- The lowest price and filter cost here
- 143 cfm, verified by AHAM
- Covers about 21 m²
- No sensor or auto mode
- Too small for a living room
$89.99at levoit.com · sale price, was $99.99
Most clean air under $200
Levoit Vital 200S
250 cfm, verified by AHAM, enough for about 36 m²: the most clean air here, so it suits a living room as well as a bedroom. A washable pre-filter and pet mode help with hair.
- Cleans
- 36 m² day to day, 23 m² on smoky days
- Quietest
- 27 dB
- Filter
- $49.99
- About 36 m², the most under $200
- Washable pre-filter and pet mode
- App with PM2.5 readings
- From 27 dB at night, the loudest of these
- Its filter costs more than the Core 300's
$169.99at levoit.com · sale price, was $189.99
Best smart pick under $200
Levoit Core 300S
The Core 300 with a laser particle sensor, auto mode and app control. Same clean air and the same filter; worth the extra if you want it to react on its own.
- Cleans
- 20 m² day to day, 13 m² on smoky days
- Quietest
- 22 dB
- Filter
- $29.99, every 6–8 months
- Auto mode with a laser particle sensor
- App, Alexa and Google
- Sleep mode from 22 dB
- About 20 m²
- Costs more than the Core 300 for the same clean air
$149.99at levoit.com
Best small smart pick
Levoit Vital 100S
About 21 m² with a washable pre-filter, auto mode and app control, for a little more than the Core 300.
- Cleans
- 21 m² day to day, 13 m² on smoky days
- Quietest
- 25 dB
- Washable pre-filter
- Auto and sleep modes
- App control
- From 25 dB on its quietest setting
- About 21 m²
$119.99at levoit.com · sale price, was $139.99
Quietest under $200
Coway Airmega 150
Coway's bedroom model: 20 dB on its lowest setting by Coway's figures, a particle sensor with auto mode, and about 22 m² of everyday cleaning.
- Cleans
- 22 m² day to day, 14 m² on smoky days
- Quietest
- 20 dB
- 20 dB on low
- Particle sensor and auto mode
- Draws only 25 W
- No app or Wi-Fi
- The highest price of these
$189.99at cowaymega.com
What size do you need?
The single biggest mistake is a purifier too small for the room. Type yours in to see the clean air it needs, and which picks get there.
You need a smoke CADR of at least 108 cfm (your room is about 161 ft²).
On this list: Levoit Core 300, Levoit Vital 200S, Levoit Core 300S, Levoit Vital 100S, Coway Airmega 150.
The rule is AHAM's, the US body that certifies CADR ratings: two-thirds of the floor area in square feet day to day, the full floor area for smoke. It assumes an 8 ft (2.4 m) ceiling; for a higher one, aim a little above it.
The real cost is the filter
A purifier's price is paid once; its filter, for as long as you own it. At a replacement every 6–8 months, three years means 5 or 6 filters. At $29.99 each (the Core 300's, checked November 2026) that's about $135–180; at $49.99, about $225–300.
Before you buy, check the replacement filter's price and that its maker sells it directly, so you're not left with copies of unknown quality.
What you give up under $200
Mostly room size. Under $200 you get enough clean air for a bedroom or a small living room, about 20–36 m²; a bigger room needs a bigger purifier, or two small ones.
Sensors and apps are no longer premium extras: the Core 300S and both Vitals have auto mode and app control at this price.
Sale prices
Several picks are often on sale at the maker's own shop and on Amazon. The prices shown are the makers', checked on the date on each product, so look at today's price before you buy.
How we chose
Under $200
By the maker's own list price, from its own shop, checked on the date shown on each product.
Verified CADR
AHAM or Energy Star clean-air figures, so you know the room size you're paying for.
Cheap to keep
A filter that's easy to buy at a sensible price, and low power on everyday settings.
We haven't lab-tested these ourselves. The rankings rest on independent ratings (AHAM's verified CADR, Energy Star's listings, NIOSH approvals) and the makers' own figures, each shown on the product's page with where it's from. No brand pays to be listed, and the order doesn't change with commission. We earn a small commission when you buy through our links.
Questions
- What is the best cheap air purifier?
- For one bedroom, the Levoit Core 300: 143 cfm verified by AHAM, about 21 m², with the cheapest filter here. For more space under $200, the Levoit Vital 200S covers about 36 m².
- Is a cheap air purifier worth it?
- Yes, if it has a true HEPA filter and a verified CADR for your room. Avoid purifiers with no CADR rating or with 'HEPA-type' filters.
- How much do air purifier filters cost?
- For these picks a replacement costs about $30–60 at the makers' own prices and lasts roughly 6–12 months. Check the replacement's price before you buy the purifier.
- Do I need a True HEPA filter?
- Yes. A True HEPA filter captures at least 99.97% of particles at 0.3 microns. 'HEPA-type' or 'HEPA-like' filters don't meet that standard, and they're common on very cheap purifiers.
- Are air purifiers expensive to run?
- Not very. Coway rates the Airmega 150 at 25 W. For most purifiers the filters cost more over a year than the electricity.
- Is a $50 air purifier any good?
- Usually not for a whole room: most have no verified CADR and move too little air for more than a desk. If you can't spend more, the US EPA's do-it-yourself box fan with a MERV 13 filter cleans more air for the money.
Before you buy
Check how bad the air gets where you live
A purifier matters most where the air is often unhealthy. See today's reading and the past week for your city, from the nearest ground stations.