Medify Air
Medify MA-40 Air Purifier: Detailed Spec Analysis
The Medify MA-40 is a powerhouse whole-house purifier that covers up to 1,793 sq ft with medical-grade H13 HEPA filtration and a dust CADR of 406 CFM , numbers that put it in the top tier for large-space coverage. It's best suited for homeowners and renters who need serious air cleaning across open-concept living rooms, large bedrooms, or entire apartments without the complexity of smart features.
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Last updated: . Based on our analysis of 865+ air purifiers.
What Sets It Apart
Key specification highlights based on our analysis.
H13 HEPA Filtration
Medical-grade H13 HEPA filter captures 99.95%+ of particles at 0.3 microns
1793 sq ft Coverage
Covers large rooms up to 1793 sq ft (475 out of 932 purifiers cover 500+ sq ft)
Energy Star Certified
Meets energy efficiency standards (119 out of 932 purifiers are Energy Star certified)
CADR 406 CFM (Dust)
High clean air delivery rate for effective particle removal
Considerations
No Auto Mode
Manual fan speed adjustment required; no automatic air quality response
66 dB at Max Speed
May be noticeable at highest fan setting
No WiFi/App Control
Cannot be controlled remotely via smartphone app
Why We Recommend It
- 01.
Massive 1,793 sq ft coverage area handles large homes, apartments, and open-concept living rooms with ease
- 02.
Dust CADR of 406 CFM delivers fast air changes per hour even in oversized spaces
- 03.
H13 HEPA filtration removes 99.95% of airborne particles at 0.3 microns, including pollen, pet dander, and fine dust
- 04.
Energy Star certified with only 68W draw , costs pennies per day to run continuously
- 05.
Lifetime warranty (USA registered) provides long-term peace of mind that most competitors don't match
Considerations
- 01.
No auto mode or air quality sensor , you'll need to manually adjust fan speeds based on conditions
- 02.
No WiFi or app control, so it can't integrate into smart home setups or be controlled remotely
- 03.
At 66 dB on max speed, it's audible in quiet offices or bedrooms , though sleep mode brings it down significantly
Technical Specifications
| Feature | Specification |
|---|---|
| Purifier Type | Whole house |
| Coverage Area | 1793 sq ft |
| Filter Type | Hepa h13 |
| HEPA Grade | H13 |
| CADR (Dust) | 406 cfm |
| Noise (Min) | 46 dB |
| Noise (Max) | 66 dB |
| Wattage | 68W |
| Voltage | 110VV |
| Energy Star | Yes |
| Timer | Yes |
| Sleep Mode | Yes |
| Fan Speeds | 3 |
| Height | 22" |
| Width | 11" |
| Depth | 10.5" |
| Weight | 9.2 lbs |
| Filter Life | 6 months |
| Filter Model | B07MTQFFNT |
| Child Lock | Yes |
| Filter Change Indicator | Yes |
| Certifications | CARB, ETL, Energy Star |
| Warranty Details | USA registered Lifetime Warranty |
Filtration Technology
The MA-40 uses a True HEPA H13 filter rated to capture 99.95% of particles at 0.3 microns, which is a step above standard H11 HEPA found in many entry-level purifiers. This medical-grade H13 HEPA filtration handles pollen, dust mites, mold spores, pet dander, and fine particulate down to 0.1 microns.
Only about 13% of purifiers on the market carry Energy Star certification alongside H13-grade filtration, making this a standout for efficiency and capture rate.
Noise & Performance
With a dust CADR of 406 CFM and 1,793 sq ft of coverage, the MA-40 delivers roughly 2-3 air changes per hour in a large living room , well above the minimum recommended for effective purification. Noise ranges from 46 dB at the lowest speed (comparable to a quiet library) to 66 dB at max (similar to normal conversation), so it's noticeable on high but manageable.
The dedicated sleep mode drops noise further for overnight use in bedrooms, though sensitive sleepers may still hear it.
Smart Features & Controls
Controls are touch-panel based with 3 fan speeds, a sleep mode, timer function, and child lock , straightforward and easy to use without a learning curve. There's no WiFi connectivity, app control, or auto mode with an air quality sensor, which means you won't get real-time AQI readings or automatic speed adjustments.
For users who prefer simple, reliable operation without smart home complexity, this is a non-issue , but those wanting remote control or automation will need to look elsewhere.
Filter Maintenance
The replacement filter (model B07MTQFFNT) has a 6-month lifespan under typical use, and the built-in filter change indicator takes the guesswork out of replacement timing. Maintenance is minimal , slide out the old filter, drop in the new one.
At two replacements per year, ongoing costs are predictable and the process requires no tools or special skills.
Who Is This Air Purifier For?
Ideal For
- ✓ Owners of large homes or open-concept apartments , the 1,793 sq ft coverage and 406 CFM CADR handle big spaces without breaking a sweat
- ✓ Allergy and asthma sufferers , H13 HEPA filtration captures 99.95%+ of pollen, dust mites, and pet dander down to 0.1 microns
- ✓ Pet owners with large living rooms , effectively pulls pet dander and fine hair from the air across wide coverage areas
- ✓ Parents wanting cleaner air for kids , child lock prevents little hands from changing settings, and the unit is CARB and ETL certified
Not Ideal For
- ✕ Smart home enthusiasts , no WiFi, no app, no voice assistant integration; look at models with connected features instead
- ✕ Light sleepers in small bedrooms , the 46 dB minimum may be noticeable in very quiet rooms, and there are quieter compact models available
- ✕ Users needing heavy odor or smoke removal , without a dedicated activated carbon filter stage, gas and VOC absorption is limited
Setup is essentially plug-and-play: remove the unit from the box, unwrap and install the pre-packaged H13 HEPA filter, plug it in, and select your fan speed. The entire process takes under 5 minutes with no tools required.
Run the purifier on the highest speed for the first 1-2 hours to clear any initial manufacturing odors and quickly cycle the air in your space
Place the unit at least 12-18 inches from walls for optimal airflow and coverage across your rooms
Medify offers a USA registered Lifetime Warranty on the MA-40, which is exceptionally generous compared to the industry-standard 1-2 year warranties. Register your unit promptly after purchase to activate full coverage.
FAQ
How often do I need to replace the filter on the Medify MA-40?
The replacement filter (model B07MTQFFNT) lasts approximately 6 months under normal use. The MA-40 has a built-in filter change indicator that alerts you when it's time, so you don't need to track it manually.
Plan for two filter replacements per year for continuous operation.
Can the Medify MA-40 actually cover 1,793 square feet?
Yes, the 1,793 sq ft rating is based on one air change per hour at the highest fan speed with a CADR of 406 CFM. For more effective purification with 2-3 air changes per hour , which allergists recommend , expect optimal performance in spaces around 600-900 sq ft. It's still one of the highest-coverage single units available.
Is the Medify MA-40 quiet enough for bedrooms?
On sleep mode, it's reasonably quiet for most sleepers, though the minimum noise level of 46 dB is audible in very still rooms. For context, 46 dB is roughly the sound of a quiet refrigerator.
Many users find it produces pleasant white noise, but if you're extremely noise-sensitive, consider a model rated below 30 dB at its lowest setting.
Does the Medify MA-40 remove smoke and odors?
The H13 HEPA filter effectively captures smoke particles down to 0.1 microns, making it useful during wildfire season. However, it lacks a dedicated activated carbon filter stage, so its ability to absorb gaseous odors and VOCs is limited compared to purifiers with thick carbon beds.
For heavy smoke or cooking odor removal, look for models with substantial activated carbon filtration.
Does the Medify MA-40 work with Alexa or Google Home?
No, the MA-40 does not have WiFi connectivity or smart home integration. It operates via touch controls on the unit itself with 3 speeds, sleep mode, timer, and child lock.
If app or voice control is important to you, you'll need to consider a different model with built-in WiFi.
How much electricity does the Medify MA-40 use?
The MA-40 draws just 68W and is Energy Star certified, meaning it meets strict energy efficiency standards. Running it 24/7 costs roughly -6 per month depending on your electricity rate.
That's impressive for a purifier covering up to 1,793 sq ft of space in homes and apartments.
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Bottom Line
The Medify MA-40 delivers exceptional large-room coverage with medical-grade H13 HEPA filtration at an efficient 68W, backed by a lifetime warranty that's rare in this category. It's the right pick for anyone who needs powerful, no-nonsense air purification across big living rooms, offices, or entire apartments without fussing with apps or smart features.
Best for large homes and open spaces needing high-CADR, H13 HEPA purification with simple, reliable controls
Consider alternatives if you need WiFi/app control, auto mode with air quality sensing, or heavy-duty odor and VOC removal
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