Honeywell HPA300 vs Medify MA-40
Quick take: The Medify MA-40 costs $1 less; the Honeywell HPA300 moves more air (300 CADR, 24% more cleaning power); the Honeywell HPA300 costs about $31 less per year in filters — over five years that often outweighs the sticker gap; the Medify MA-40 includes an ionizer — some buyers avoid these (see its cons for the ozone note).
| Spec | Honeywell HPA300 | Medify MA-40 |
|---|---|---|
| Price | ~$250 | ~$249 |
| Rating | — | — |
| Type | Large Room | Large Room |
| CADR (smoke) | 300 CFM | 241 CFM |
| Honest Coverage (AHAM) | ~465 sq ft | ~374 sq ft |
| Claimed Coverage | 2,250 sq ft | 1,793 sq ft |
| Noise (sleep) | 44 dB | 46 dB |
| Noise (max) | 60 dB | 66 dB |
| Filter Cost / Year | $89 | $120 |
| Filter | Activated carbon pre-filter (A) + 3x True HEPA (R) filters | Pre-filter + H13 True HEPA + activated carbon (3-stage combined cartridge) |
| Filter Life | 12 mo | 6 mo |
| Max Power | 76W · Energy Star | 68W · Energy Star |
| Auto Mode | Manual only | Manual only |
| Ionizer | None | Yes |
| WiFi Control | None | None |
| Weight | 17 lbs | 15 lbs |
| Maintenance | Two schedules to track: the thin carbon A pre-filter needs replacing every 3 months, while the three R HEPA cartridges last about 12 months - roughly $89/yr total for genuine filters, though third-party sets cost half that and are among the most-bought aftermarket filters on Amazon. There's no air quality sensor, so there's no auto mode and no filter tracking beyond a simple timer light. The pre-filter is a cut-to-fit carbon sheet, so keep scissors handy if you buy bulk rolls to save money. | Budget for two filter changes a year: Medify's stated life is just 6 months (about 3,000 hours) and genuine cartridges run $59.99, so real upkeep is ~$120/yr - double a Levoit Core 600S despite less airflow. The lifetime warranty is conditional on registration and staying on genuine Medify filters, which conveniently locks in that filter spend. The glossy acrylic panel shows dust and fingerprints and needs regular wiping. The ionizer is switchable - leave it off if anyone has asthma. |
| Warranty | 5 years | Lifetime - conditional on registration and genuine Medify filter use |
Pros & cons
Honeywell HPA300
- ✓AHAM-verified performance with an honest coverage claim from Honeywell itself
- ✓Independently tested among the fastest room-clearing units in its price class
- ✓5-year warranty - double what Levoit and Blueair offer standard
- ✓Huge installed base with cheap, plentiful third-party filters
- ✓Energy Star certified despite the older motor design
- ✓Simple, durable, nothing to break - no screens, apps, or sensors
- ✗Loud across the range - 44 dB minimum is other units' medium speed
- ✗No sensor, auto mode, Wi-Fi, or remote - fully manual operation
- ✗76 W draw is high for 300 CFM; rivals do more with less
- ✗Two filter schedules to remember (quarterly carbon + annual HEPA)
- ✗Amazon's 2,250 sq ft banner contradicts Honeywell's own honest 465 sq ft spec
Medify MA-40
- ✓Solid real-world cleaning for medium-to-large rooms when sized honestly
- ✓Premium-feeling glass touch panel, child lock, and timer at a mid-range price
- ✓Switchable ionizer that can be fully disabled
- ✓Verified 4.7-star Amazon average across a large base
- ✓Energy Star and CARB certified
- ✓Lifetime warranty available (with conditions)
- ✗1,793 sq ft listing claim is nearly 5x the honest 374 sq ft coverage
- ✗'Medical grade H13/H14' branding overstates what a consumer tower can deliver
- ✗$120/yr filter cost - 6-month life at $59.99 per cartridge
- ✗Loud floor: 46 dB minimum means it's never truly quiet, 66 dB at max
- ✗No air quality sensor, auto mode, or Wi-Fi at a price where rivals have all three
- ✗Warranty conditions lock you into genuine-filter spending