Medify Air (brand store)white $249
Shippingabout 3–7 days
Returns–
Medify MA-40
Rank 9 of 13 robots for large rooms in our ranking, tested by .in our ranking, tested by
Score 4.6 out of 10
Lab tests, 60% of the score: no lab has tested it.
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
Features, 15%: 4.6, 26 of the 57 points for the facts the maker states.
Price does not count, so a discount never lifts a model. Only robots a lab has tested are ranked.
The highest score today is 8.4.
Is the Medify MA-40 right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
Green is the best of these 3, also when they share the lead.
| This model Medify MA-40 | Higher score, 24% cheaper Levoit Vital 200S-P Best on 1 fact | Much better, not pricier Levoit Core 400S-P Best on 1 fact | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | $249Medify Air (brand store) | $189Levoit (brand store) best | $219Levoit (brand store) |
| Score | best | ||
| Rank | rank 9 of 13 for large rooms | rank 5 of 13 for large rooms | rank 1 of 13 for large rooms |
| Customer rating | – | – | – |
| Station | |||
| Room size same on all | large rooms | large rooms | large rooms |
| Size, noise and age | |||
| On the market since | April 2020 | June 2023 | June 2023 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per store
On October 15, 2026 the lowest price for the Medify MA-40 is $249 at Medify Air (brand store), shipping to the United States included. In our ranking it is rank 9 of 13 for large rooms, with a score of 4.6 out of 10.
All prices include shipping to the United States. Sales tax is added at checkout. We may earn a commission when you buy through these links. It never changes our ranking.
Medify Air (brand store)white Price history
Lowest price per day
Lowest since Oct 14$249
Highest since Oct 14$249
Price drops since Oct 140no drop seen yet
Medify MA-40 specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Medify · on the market since April 2020
Clean air delivery rate (CADR)239 cfm
Room size we compare on364 ft²
Noise at the lowest speed41 dB
Filter life4 months
Power at the highest speed68 W
Running cost: Filters: about $179 a year at today’s prices.
Consumables: The filter lasts about 4 months.
Cleaning performance 7 facts
- Clean air delivery rate (CADR)
How much clean air the purifier delivers an hour, measured with smoke, dust and pollen. A higher figure cleans a bigger room or the same room faster.
- 239 cfm (406 m³/h)
- CADR measured to
The test the CADR comes from. AHAM AC-1 and the DOE test are independent and comparable. A maker's own test is not.
- AHAM AC-1 (US standard)
- CADR for smoke
The CADR measured with tobacco smoke, the finest of the three test particles. It is the figure to read for wildfire smoke.
- 239 cfm (406 m³/h)
- CADR for dust
The CADR measured with dust.
- 231 cfm (393 m³/h)
- CADR for pollen
The CADR measured with pollen.
- 240 cfm (408 m³/h)
- CADR for fine particles (PM2.5)
The CADR measured for particles under 2.5 microns.
- 235 cfm (399 m³/h)
- Room size we compare on
The room size where the purifier changes the air 4.8 times an hour under a 2.5 m ceiling, worked out from its CADR. We use it so every model is compared on the same rule.
- 364 ft² (34 m²)
Filter 1 fact
- Activated carbon filter
A filter of activated carbon that takes out smells and some gases. It does not catch particles.
- yes
Running costs 1 fact
- Filter life
How long the maker says a filter lasts, in months of normal use. A filter that is spent cleans less.
- 4 months
Noise and power 3 facts
- Noise at the lowest speed
The sound level at the lowest speed, as the maker measures it.
- 41 dB
- Noise at the highest speed
The sound level at the highest speed, as the maker measures it.
- 53 dB
- Power at the highest speed
The power the purifier draws at its highest speed.
- 68 W
Extras 1 fact
- CARB certified
Certified by the California Air Resources Board as making little ozone.
- yes
Warranty and certification 1 fact
- AHAM Verifide certified
The CADR is verified by AHAM, the US trade body that runs the test.
- yes
Sources: ahamdir.com · medifyair.com · ww2.arb.ca.gov
Our score
Confidence: medium. One lab and fewer than 300 owners’ ratings. The highest score today is 8.4.
-
Lab tests 60%–
Left out, so the other parts count for more.
-
Owners’ ratings 25%–
Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.
-
Features 15%4.6
26 of 57 points for the facts the maker states.
- Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
- No test, no rankOnly robots a lab has tested are ranked. The rest get a provisional score.
- Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.
Frequently asked questions about the Medify MA-40
What size of room is the Medify MA-40 for?
The Medify MA-40 is sized for a room of about 364 ft², the room size we compare it on. Its clean air delivery rate (CADR) is 239 cfm, measured to AHAM AC-1 (US standard).
How often does the Medify MA-40 need a new filter?
The maker gives the filter a life of 4 months.
How loud is the Medify MA-40?
The maker states 40.5 dB at the lowest speed and 53.3 dB at the highest.
Does the Medify MA-40 make ozone?
It is CARB certified, which means it stays under California’s limit of 50 parts per billion of ozone.
Is the Medify MA-40 good for wildfire smoke?
Its CADR for smoke is 239 cfm. A higher number clears smoke from a room faster, so compare it with the size of your room.
The maker
Medify Air
- Headquarters: United States
Medify Air is a company based in Florida in the United States. Its about page says it was founded to help relieve the crisis of indoor air pollution, and that every air purifier it designs is made with HEPA filters.
