Medify MA-40 Air Purifier with H13 True HEPA Filter | 78 sq m Coverage | for Allergens, Smoke, Smokers, Dust, Odors, Pollen, Pet Dander | Quiet 99.9% Removal to 0.1 Microns | Black, 1-Pack

The Medify MA-40 is an American air purifier brand that's less well known in the UK than Levoit or Philips. CADR of 380, covers 78 m² in 30 minutes, H13 HEPA filtration. 45 reviews at 3.8 stars. The standout feature is a lifetime warranty when you use genuine Medify replacement filters.

Lifetime warranty

Register the product and use genuine Medify filters, and the warranty lasts the life of the unit. No other air purifier at this price offers that. Levoit gives 2 years. Philips gives 2 years. Shark gives 2 years. If longevity matters to you, this is worth knowing about.

The 3.8 star rating

Lower than the Levoit and Philips competition. Some UK reviews mention the 220V model being noisier than expected. The minimum noise level is 46 dB, which is significantly louder than the Levoit range (24 dB) or the Blueair (18 dB). On low speed it's still audible. Not a bedroom purifier.

Our quiet air purifier for sleeping roundup has quieter alternatives.

Filtration

H13 HEPA capturing 99.9% of particles down to 0.1 microns. CARB, ETL, and Energy Star certified. Three fan speeds plus sleep mode. Touch screen control panel with timer and child lock. Our HEPA filter air purifier article covers filter grade comparisons.

Room coverage

78 m² in 30 minutes, 148 m² in an hour. That's living room territory. More coverage than the Levoit Core 300S, less than the Core 400S. Our best air purifier for large rooms guide has the room size maths.

Who it's for

People who want a no-app, no-WiFi purifier with a lifetime warranty for a living room or large space where noise isn't a dealbreaker. It's well built and the American brand has a strong reputation in the US market. In the UK it's less established.

For the full comparison, our best air purifier UK roundup covers all brands. For allergy sufferers, our best air purifier for allergies guide has the filtration comparison.