The Best Air Purifiers Under $150

If you deal with allergies, pets, dust, or wildfire smoke, a good air purifier makes a real, measurable difference — studies show true-HEPA units can cut indoor particulates by 50 to 85% in the room they’re in. The key phrase is “in the room”: size the purifier to the space where you spend the most time.

You don’t need to spend a lot. Under $150 covers genuinely capable HEPA purifiers for bedrooms and living rooms alike. Here are the five we’d buy.

How we picked

We prioritized true-HEPA filtration (99.97% of fine particles), coverage matched to real room sizes, quiet operation for bedrooms, and — crucially — reasonable long-term filter costs, since a cheap machine with pricey filters can cost more over two years. We stuck to trusted brands.

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Best overall

1. Levoit Eleva 300X

Best for: most rooms — a smart, quiet all-rounder with separate filters.

The Eleva 300X nails the value equation: genuine three-stage filtration (pre-filter, True HEPA, and a separate activated-carbon layer), smart app and auto modes, and near-silent operation on low. Because the HEPA and carbon filters replace on their own schedules, it’s cheaper to maintain over time. The one we’d pick for most homes.

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Best for large rooms

2. Winix A230

Best for: bigger living rooms and open spaces on a budget.

The Winix A230 moves a lot of air, covering large rooms quickly, and adds an air-quality sensor with an auto mode that ramps up only when needed. A washable pre-filter helps keep long-term costs down. It’s the pick when you need to clean a big space without spending big.

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Best for bedrooms

3. Levoit Core-Series H13 True HEPA

Best for: bedrooms and small spaces where quiet matters most.

Compact, affordable, and genuinely quiet on its sleep setting, this Levoit is built for the bedroom. H13 True HEPA handles allergens, dust, and pet dander, and you can dim the display so nothing glows while you sleep. A near-silent, no-fuss pick for a smaller room.

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Best from a trusted brand

4. Coway Airmega Bedroom Purifier

Best for: buyers who want Coway’s reliability in a compact unit.

Coway has made air purifiers for nearly two decades, and this compact model brings that proven reliability to a bedroom-sized space with HEPA and deodorization filtration. If you value a long track record and low-drama ownership, it’s an easy call.

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Best value for pets & allergies

5. Levoit Core-Series Purifier

Best for: households fighting pet hair, dander, and everyday allergens.

This Levoit targets the stuff that makes allergy sufferers and pet owners miserable — hair, dander, dust, and pollen — with a True HEPA system in a quiet, compact body at a friendly price. A dependable, affordable pick for keeping a room’s air fresh.

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What to look for

True HEPA. Look for “True HEPA” or “H13,” which captures 99.97% of particles down to 0.3 microns. Avoid vague “HEPA-type” claims.

Room size (CADR). Match the purifier’s rated coverage (and CADR) to your room. A slightly oversized unit can clean the same space at a lower, quieter fan speed.

Filter costs. Check replacement filter prices and schedules before buying. Separate HEPA and carbon filters (replaced on different cycles) save money over all-in-one designs.

Noise. For a bedroom, look for a quiet sleep mode (roughly 24 dB) and a dimmable display.

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The bottom line

For most rooms, the Levoit Eleva 300X is the best all-rounder — quiet, smart, and cheap to maintain. Size up to the Winix A230 for large spaces, choose the compact Levoit or Coway for bedrooms, and the Levoit Core for pets and allergies.

Worth noting: the famous Coway Airmega AP-1512HH is a superb pick too, but it now sits just above this budget. Check the current price before you buy.