Home › Large (250–399 CADR) › Medify MA-40
Medify MA-40
#15 of 18 in large · #37 of 49 overall · all Medify models
3.1
High claimed CADR for the money; not AHAM listed, and filters are short-lived.
330 cfmsmoke CADR
512 sq ftAHAM room size
56 dBat full speed
68 Wmax power
$170street price, being verified
One air change of a 300 sq ft room in about 7 min$160 a year in filters$970 to own for 5 years
Ratings
Includes independent measurements from Modern Castle.
Each rating places this unit among the others on a 0.5–5 scale, within its room-size class for the measures that scale with size and across the whole catalog for the rest. Weighted together they give the overall 3.1. Formula and weights.
Specifications
- Smoke CADR
- 330 cfm
- Dust CADR
- 330 cfm
- Pollen CADR
- 330 cfm
- AHAM room size
- 512 sq ft
- Maker's room size
- 840 sq ft
- Max power
- 68 W
- Noise (low / high)
- 23 / 56 dB
- Filter cost
- $80
- Filter life
- 6 months
- Filters per year
- $160
- 5-year cost of ownership
- $970
- True HEPA
- Yes
- Activated carbon
- 0.3 lb
- Auto mode (PM2.5 sensor)
- No
- App
- No
- Washable prefilter
- No
- AHAM Verifide
- No
- Energy Star
- No
- Weight
- 15.0 lb
- Released
- 2019
Independent measurements
| Metric | Value | Source |
|---|---|---|
| Particle reduction computed from stated readings: PM2.5 18.3 to 0.1 after 1 hour at highest fan speed in a roughly 14x10 ft room after 30 s of incense; particle count 3499 to 39 (98.9%) | 99.5 % | Modern Castle 2025-02 |
| Noise, measured lowest (sleep) fan speed; distance not stated; ambient 42.3 dB | 50.4 dBA | Modern Castle 2025-02 |
| Noise, measured highest fan speed; distance not stated; ambient 42.3 dB | 59.1 dBA | Modern Castle 2025-02 |
How it compares with its neighbors
| # | Model | Smoke CADR | Dust | Pollen | W | dB max | Filters/yr | $/CADR | Score |
|---|---|---|---|---|---|---|---|---|---|
| 12 | Honeywell HPA5300 | 300 | 320 | 300 | 120 | 58 | $60 | 0.8 | 3.2 |
| 13 | Honeywell HPA300 | 300 | 320 | 300 | 130 | 60 | $60 | 0.6 | 3.2 |
| 14 | Winix T810 | 267 | 267 | 267 | 45 | 62 | $90 | 0.9 | 3.1 |
| 15 | Medify MA-40 | 330 | 330 | 330 | 68 | 56 | $160 | 0.5 | 3.1 |
| 16 | Rabbit Air A3 | 262 | 270 | 265 | 57 | 51 | $100 | 2.3 | 3.0 |
| 17 | Blueair HealthProtect 7470i | 300 | 300 | 300 | 55 | 51 | $240 | 1.8 | 2.6 |
| 18 | Mila Air Purifier | 263 | 270 | 265 | 55 | 55 | $198 | 1.1 | 2.6 |