Medify Air MA-40 Air Purifier Review In 2022: Goodbye Dust!

The top of the line in its class, Medify MA-40 air purifier is the latest rendition with improved features and a higher-grade HEPA H13 filter. House in a highly versatile form factor that can be used anywhere in the room, what are the upgraded specification in V2.0? How is the air cleaning capacity particularly against dust? Why should you get over other Medify models that are smaller and cheaper? Find out more in our Medify MA-40 review below.
online price**
±349.00 $$$$/ 7

(annual filter cost ±60-120)

** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.

Medify Air MA-40 Specification

ProductMedify Air MA-40
9.9 x 22 x 10.9 in
(25.1 x 55.9 x 27.7 cm)
Weight15.6 lb (7.1 kg)
Coverage (up to)840 sq. ft. (78 m2)
Airflow speed
Dust free (CADR)330 cfm (561 m3/h)
Pollen free (CADR)330 cfm (561 m3/h)
Smoke free (CADR)330 cfm (561 m3/h)
Humidifying(H) speed
- Lifespan
- Replacement cost ($)
2x Pre-filter
6 months
HEPA filter
- Lifespan
- Replacement cost ($)
2x H13 True HEPA filter
6 months
Carbon filter
- Lifespan
- Replacement cost ($)
2x Activated Carbon composite filter
6 months
Ionizer/ TechnologiesIonizer
UV-light/ PCO
Other filter
All-in-one filter
- Lifespan
- Replacement cost ($)
Medify MA-40 Replacement Filter (ME-40)
6 months
+- 59.99
Optional/ Addon
Noise level46-66 dBA
Power usage level54 W
Timer/ Scheduler1, 2, 4, 8 hours
Auto mode
Air qualityAQ indicator
Filter change indicator
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Email/ Phone support

Key Features

  • 4-stage filtration with dual air intake
  • Glass panel 3 fan speeds with night mode
  • Dual pre-filter - removes dust, hair, fibers
  • Medical-grade H13 HEPA filter - 99.9% efficiency/ 0.1 microns
  • Activated carbon composite filter
  • Optional ionizer
  • Child Lock/ display lock
  • Filter Replacement indicator
  • 0-8 hours timer settings
  • USA registered Lifetime Warranty

Design And Usability

Medify Air MA-40 dimension
9.9 x 22 x 10.9 in
(25.1 x 55.9 x 27.7 cm)
Medify Air MA-40 weight
15.6 lb (7.1 kg)

Medify MA-40 is a simple, modern good-looking air cleaner that is clearly underappreciated. At a slim 9.9 inches width, 22 inches height, and 10.9 inches depth, it is fairly compact and only a tad bigger than the entry-level MA-15. While it does not merit a travel form factor, you can place it on the work desk, shelf, bedside table, or corner of the room without taking much space. The 15.6 pounds weight is on the heavier side, but most people will have no issue carrying it around.

Navigating Medify MA-40 could not be any easier. The tempered glass panel comes with all the basic and advanced controls. You can cycle the fan speed between quiet or performance, a child lock that locks the control from any adjustment, 1, 2, 4, or 8 hours timer preset, and a power-off button. You can also disable the ionizer function or dim the light button to reduce glare at night. Lastly, the passive filter replacement indicator will remind you to change the filter after 2,500 hours of runtime.

As for the design usability, you have a big horizontal air inlet that can pull air in even from the lower ground and distribute clean air right at the top. The removable panel is fitted tightly and can be easily taken out for quick filter change. Overall Medify MA-40 is very well-built, uses premium materials, and we have not spotted any misalignment, off-gassing, patchy spot.

To round up Medify MA-40 passive features, it is ozone-safe as approved by CARB (California Air Resources Board), AHAM tested on CADR, international UL safety standard, ETL, and Energy Star certified. There is also the renowned Medify lifetime warranty that covers any manufacturer defects for the rest of your life (providing no third-party filters is used).

Airflow, Coverage, And CADR

Medify Air MA-40 coverage
Purifying coverage
840 sq. ft. (78 m2)
Medify Air MA-40 fanspeed
Here's what has been upgraded in Medify MA-40. At full speed, it can consistently cover up to 840 square feet in 30 minutes or 2 air changes per hour. For quicker air cleaning at 4 air changes per hour (15 minutes), expect a lower 420 square feet of coverage. Unless you are an asthmatic person or have sensitive lungs, Medify MA-40 will do well in the living room, big bedroom, garage, basement, lounge, nursery home, or any large spaces in a residential home. Auto mode is the only surprise omission in this top-tier model.
Medify Air MA-40 dust CADR
330 cfm (561 m3/h)
Medify Air MA-40 pollen CADR
Pollen CADR
330 cfm (561 m3/h)
Medify Air MA-40 smoke CADR
Smoke CADR
330 cfm (561 m3/h)
Clean air delivery rate measures the speed of an air cleaner to remove specific particulates in a fixed environment. Medify MA-40 CADR reflects well on the increased airflow delivery rate. Under AHAM official guidelines, dust, pollen, and smoke CADR is averaging 150 cubic feet per minute. Passes our 200 cfm benchmark with flying colors.

Recommended Read

Filters And Performance

Here are the key differences between Medify Air MA-40 and the rest of its lineup. Outfitted with a dual intake 4-stage air filtration, the outer pre-filter will trap large particles mainly dust, hair, fibers, and lint. With most large particles removed, the dual H13 HEPA filter will remove 99.9% of irritants as small as 0.1 microns e.g. dust mites, mold, pollen, pet dander, bacteria, and virus carrier. For smoke particles, you have the carbon filter with carbon pellets that will absorb pet odors, cooking smells, musty mold, tobacco smoke, harmful toxins e.g. VOCs, asbestos, formaldehyde, benzene. There is an optional ionizer technology (can be disabled) diffuses negative ions that will latch to nearby positive ions particles in the air. The particles will subsequently fall from the increased weight and Medify Air MA-40 will pull in the pollutants into its filtration. Overall, the filter quality is great but the dual filter setup can be costly and a hassle to replace.

Noise And Energy Usage

Medify Air MA-40 noise level
Noise level
46-66 dBA
Medify Air MA-40 power consumption
Power consumption
54 W

Medify MA-40 noise output is split between its fan base. Some find the noise acceptable for all-day use while some find it loud and distracting. At low speed AKA "Sleep mode", the noise level is at 46 dBA which is in white noise territory. At max speed, the noise level could go as high as 66 dBA. So if you want to use the air purifier during sleep or a focus session, stay clear of high speed. The V2.0 will also automatically turned off the ionizer to make it quieter, but you can enable it back when needed.

For power consumption, Medify MA-40 is Energy Star rated with an average of 54 watts per hour. More than triple of MA-15 but you do have to remember this is a way more powerful unit. With 12 hours of runtime, the estimated cost is around $0.10 per day, $2.9 a month, or $35 dollars a year. For 24 hours runtime, multiply the electric cost by 2.

Pricing And Maintainence Cost

Medify Air MA-40 MRSP/ RSP
+- 349.00
Medify Air MA-40 annual filter replacement cost
Annual Filter Cost
+- 60 - 120
^ Replacement filters/ estimated cost
Medify MA-40 air purifier is the most expensive model in its lineup and is totally justifiable. It is well-built, uses premium materials, and comes with dual filtration for extra air cleaning capacity. The default H13 HEPA filter is also a nice touch to stand out from competitors' models. On the flip side, the extra filtration will cost you in upkeeping especially with the short 2500 hours (3-6 months) filter lifespan. If you have to fork out around 120 dollars annually to ensure the pristine condition of Medify MA-40. While there are third-party filters available, doing so will void the lifetime warranty, keep this in mind.
Amazon is the best place to buy Medify MA-40 air purifiers. It offers great savings (about $80), bundled filter deal, free shipping, and Amazon Prime perks. There is also an easy 30-day return policy if you are not satisfied with the purchase. Medify official website is also an alternative option as it comes with similar perks minus the discount and hassle-free purchase. Last but not least, you can try your local dealers or retailers like Walmart or Best Buy but the availability is scarce.

Medify Air MA-40 VS The Challengers

Medify Air MA-15 Air Purifier Review

Medify Air MA-15

The entry-level model coming from the same stable. While it gains a smaller dimension and lower price tag, you will have to settle with a weaker airflow delivery rate.
Winix 5500-2 Review

Winix 5500-2

Our favorite air purifier that is perfectly balanced in price, performance, and features. It is cheaper, comes with auto mode, and remote control. The only trade-off is the slightly weaker airflow distribution.
Coway Airmega 300 Review

Coway Airmega 300

Another great dust removal machine that is bigger, pricier, and with stronger airflow output. It does lack an ionizer that is available in Medify.

Final Thoughts On Medify Air MA-40

Medify MA-40 is a well-received air purifier for many good reasons. Out of the massive 6,918 ratings, 91% of reviewers give it a positive 4 to 5 star. A big vote of confidence on its usability and value. Most users are pleased with the performance where they cough and sneeze less particularly during the winter season. They also notice the air quality has dramatically improved with less smelly odor coming out. Other compliments received include the slim design, premium glass panel, easy-to-change filters, H13 HEPA filter, and silent operation (see the cons). As for the drawbacks, most of the 7% complaints are aimed directly at the fan noise that they deemed is too noisy for night use. An insignificant amount of people also mentioned the poor build quality and high price. In conclusion, if you want a good air purifier that is based in Florida and founded by a woman, look no further.


  • Wide 840 sq. ft. coverage in 30 minutes or asthma-friendly 420 sq. ft. in 15 minutes.
  • Well-specced, well-built with premium temper glass panel.
  • High-efficiency H13 TRUE HEPA filter tested and proven to remove 99.9% of particles down to 0.1 microns.
  • Activated Carbon composite filter with carbon pellets that absorb even the most toxic smoke, and odors.
  • Ionizer that can be disabled when not needed.
  • Lifetime warranty with service center located in the United States.


  • Excellent performance but there are cheaper alternatives out there.
  • No built-in sensor thus no air quality monitor and auto mode.
  • High filter replacement cost averaging around 120 dollars a year.
Medify Air MA-40 Air Purifier Review

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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