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Medify Air

Medify MA-40 Air Purifier with H13 True HEPA Filter | 840 sq ft Coverage | for Allergens, Wildfire Smoke, Dust, Odors, Pollen, Pet Dander | Quiet 99.9% Removal to 0.1 Microns | White, 2-Pack

    • Based on 13,151 reviews
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$539.98 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 27
Order within 13 hours and 24 minutes
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Color: White


Size: 2-Pack


Style: Purifier


Features

  • MAXIMUM COVERAGE: Cleans up to 1,600 sq ft in one hr, 840 sq ft in 30 min, 430 sq ft in 15 min. [*Based on average CADR for pollen, smoke, and dust when operating at fan setting 3. Assumes closed room with 8 ft ceiling.] Perfect for large rooms.
  • HEPA H13 FILTRATION: Trusted to remove 99.9% of harmful particles including allergens, odors, VOCs, smoke, pollen, pet dander, dust, smog, contaminants, and more down to 0.1 microns in size. Captures finer particles than HEPA H11 (0.3 microns).
  • ULTRA QUIET: Choose from 3 fan speeds, with the lowest setting operating virtually silent. Runs at 110 Volts at a min noise level of 46dB and max of 66dB. For the most discreet operation, enable sleep mode to completely dim the unit's panel lights.
  • EASY TO USE FEATURES: Includes a sleek touch screen operation panel with 0-8 hour timer, fan speed, sleep mode, filter replacement indicator, and child lock, great for both kids and pets.
  • QUALITY TESTED & BACKED: CARB, ETL, and Energy Star certified. Backed by a USA registered Lifetime Warranty when genuine Medify replacement filters are used. The replacement filter (B08194ZQ4N) lasts 3,000 hours or about 6 months.

Description

Medify Air MA-40-B2 V2.0 Air Purifier with H13 HEPA filter - a higher grade of HEPA with large air chamber. Registered CADR of 330 allows it to clean a room up to 1,300 sqaure feet with one air exchanges per hour. Will cover a 800 sq. ft. room with two air exchanges per hour. Comes with Lifetime coverage.Covers 660 square feet with two air exchanges per hour (CADR 330)Touch panel operations, 4 fan speeds, 8 hr timer, night mode, child lockPre-filter, HEPA H13 filter, and carbon filter.


Color: White


Brand: Medify Air


Product Dimensions: 9.9"D x 10.9"W x 22"H


Power Source: Corded Electric


Item Weight: 30 Pounds


Control Method: Touch


Filter Type: HEPA


Floor Area: 840 Square Feet


Noise Level: 46 dB


Item Weight: 30 pounds


Manufacturer: Medify Air


Country of Origin: China


Item model number: MA-40-W2


Is Discontinued By Manufacturer: No


Material Care Instructions: Replace filter every 3-4 months


Assembly Required: No


Number of Pieces: 2


Warranty Description: Lifetime warranty on parts and services with genuine medify filter replacement every 3,000 hours (4-5 months continuous use).


Batteries Required?: No


Included Components: Air purifier machine, True HEPA H13 filter


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • A defined difference in the air quality
Color: White Size: Twin Style: Purifier
I bought this Medify MA-40 2.0 Medical Grade Filtration H13, True HEPA Air purifier during the 2020 Corona Virus pandemic. We have 2 large dogs, a kid who is back from college early due to the pandemic and my wife is a nurse at a local hospital. But it was not only those items that pushed me in this direction. I always change the furnace filter regularly. The first floor of the house has carpeting in only one room. The second floor is mostly carpeted except for the master bedroom which has an area rug that extends out a little beyond the bed. It was when I was in the hallway one morning and our sons bedroom door was open, and so were the curtains. The sun was shining in. As I looked towards that window, in the suns rays, I was astonished to see all the airborne particles/dust/or whatever. It just did not spell healthy air inside my home as far as I was concerned. I can tell you that at that point, for me, that Corona Virus Pandemic or not, I didn't like what I was seeing at all and I was going to do something about it. I kept thinking how it seems like every winter, that winter cough seems to stick around, once it starts, for the rest of the heating season. So I started looking on line. I saw several different manufacturers and models on line. There were lower cost models and there were higher cost models as well. for myself, I determined this was the one that I wanted to try. So I cannot tell you whether this model is just right, overkill or insufficient but I can tell you this. I first started it up and ran it on the first floor after I opened the package when I came home from work. Within a couple hours, I felt that I could tell a difference. I asked my wife what she thought. She was a little on the fence about it but felt a little something different. That night, when we went to bed, I took it upstairs and ran it in the hallway (leaving all of the bedroom doors open. The next morning, I left it in the upstairs hall when I left for work. When I got home, and headed up the stairs, there was a defined point at which the air quality was so noticeably different. Again I asked my wife if she noticed the difference. This time, there was no hesitation. She agreed that it was definitely better air quality upstairs. So you may be thinking is this guy going to order a second one so that he has one on both floors. I would like to, but I am going to save for it. I might even try one of the lower cost ($99) models I had seen just to see if spending that extra money is worth it. Sound - So I do not operate it at the highest fan level, in part, due to the sound. The level that I have it is the lowest level you can have and have the ionizer on the system working at the same time. So the whisper mode, I cannot comment on because I don't use it. I could see it still being a little loud for some people though. My wife commented that she had woken up during that first night and she thought the sound was the water running. Recommendation: At this point, I can say that this thing really has made a difference, I feel difference breathing, already coughing less, and I am not compromised in any way so I have no reason not to recommend it. If I end up buying a lower cost unit and it works as well, I will try to update. Maintenance - Filter replacement cost does look pretty high (I think I saw $69 for the filter). It will be interesting to see how often I find that it needs to be replaced. Unless the lower cost model does an equally good job I will bite the bullet and replace the filters I hope this helps if you are considering buying one! Good luck on your decision ... show more
Reviewed in the United States on April 3, 2020 by Amazon Customer
    • It’s Magical!
Color: Black Size: Twin Style: Purifier
I feel like I have to share our experience w this particular purifier in case any of you are struggling from any type of irritants or allergies in your home. (Plus w the price point-the timing may be right for giving/receiving it as a gift) I strongly-strongly suggest this one. My boyfriend has bad cat allergies. To the point that I really was considering having my much loved cat live elsewhere after he tried so hard to adapt for 6 months after we moved in together last year. BF suffered so much! Obviously we, nor my family, wanted that to have to happen… so in a last ditch effort, my mom (she’s 70’s, I’m 49, for perspective if that matters) spent days researching purifiers and got this one for BF. It is magical! To the point that if it is off and his allergies start to present themselves, we just turn it on and they stop. Literally in minutes. (It’s by his recliner) If someone told me that I wouldn’t believe it, but I swear it’s true! The cats (we even were able to get a 2nd one this purifier is so good!) live freely everywhere in the house—w the cat tree 6 ft from his chair (that’s the best window in the house😂) and he’s able to be well! Meds hardly worked, if at all - but this purifier did/does. If filters are an important factor for you— you’ll be happy to know that w us running it around the clock for a year, it’s just recently said it needs a new filter. 😳😳 Finding one w filters that would be available and weren’t super pricy was a must on my mom’s list of requirements when she was researching. THANKS MOM! ... show more
Reviewed in the United States on November 17, 2022 by Sherryl Paul;
    • New version does not have Auto mode - QC issues - Not worth the money
Color: Black Size: Twin Style: Purifier
Review Image by Amazon Customer
Review Image by Amazon Customer
I normally don't review products on Amazon, but there is too much going on here for me to resist. I buy this unit because I own a Medify Air MA-14 and am satisfied with that product. My mother also owns 2 of these MA-40 purifiers, and I had seen them in action. The main feature that appealed to me about this product was the Automatic mode that used an air quality sensor to determine the fan speed. When I purchased this unit, the seller had a video in the product description demonstrating this feature. Presently, there are still photos on the Amazon product page that show the LEDs used to indicate the air quality. Prior to receiving the unit, I received a 'welcome' email from the seller. Here is a quote from that email: "Running the unit on "Auto" speed will allow the unit to adjust its self as determined by the onboard particle sensor." When the MA-40 arrived, the first thing I did was plug it into the wall and attempt to set it to Auto mode. Lo and behold, there was no Auto setting on the panel. I checked the manual, and there was no mention of the feature. I double-checked my Amazon order to make sure I'd selected the correct model, and it was correct. I called my mom to check which model she had, and they both said 'MA-40' and both had the Auto setting. What the heck?! I went to the seller's website, and at the time, the product page for the MA-40 had an explanation that the model had been redesigned. They stated that they removed the particle sensor and auto setting because they found that the air immediately around the unit is treated quickly, causing the fans to cycle down prematurely. This left the air in the rest of the room untreated. It was better, they argued, to leave the fans on a constant speed. This explanation made sense to me, and does describe an engineering problem. One might think a good solution to this problem would be to house the particle sensor in a separate enclosure that can be located elsewhere in the room, then have the air quality data sent wirelessly to the fan enclosure. Wouldn't that be cool? Well, Medify's solution was to remove the sensor and sell the unit at the same price without changing the model number. For me personally, the sensor technology justified some of the price. Without it, you are basically getting a fan and a filter in a plastic box. $270 seems a bit steep for this, especially given the apparent lack of quality control (see my points further down). I think it would have been smart to change the model number to something like MA-45 or MA-40a so folks are aware of the change. This is the main thing that upset me about the product. If you've made it this far, and $270 sounds reasonable to you for a fan and a filter in a plastic box, below are my other thoughts apart from the lack of air quality sensor. -As many other reviewers have mentioned on the 2.0 units, I can tell no audible difference in fan speed between sleep mode and speed 1. This is advertised as a 4-speed fan, but there are really only 3 speeds. -On the lowest speed, I can't hear the low drone of the fans from far away, but there is a higher pitch harmonic frequency that I can hear from quite far away even on Sleep. It isn't the sort of sound that makes me think the fan is malfunctioning, but combined with the fact that the Sleep speed is not any different than the first fan speed, this unit is noisier than I thought from reading the reviews and product description. I think they cheaped out on the fans rather than try to tune them to compensate for this resonance. The sleep mode on my smaller MA-14 works great. -There are two tacks I can see through the front grille. On one, I can see the head, and on the other I see the point. The one with the point is crooked, suggesting it was hammered in by hand or something. The end of the tack is very close to the top fan. It is not making contact, but it still seems like this couldn't have been on purpose. I've enclosed a picture of this. -Cosmetically, the unit looks fine from far away, but up close, the glossy black plastic has a number of swirls and micro scratches. I can also see something that looks like heat stress? It's hard to get a photo of, but it looks like the unit was stored or handled in an uncontrolled environment prior to being wrapped for shipping. It almost looked like I needed to peel a protective film off, but I tried to find an edge and didn't see one. Photo enclosed. Immediately after receiving the product, I contacted the seller and laid out these concerns in the same (probably annoying) detail I provided above. Here is the response I received: "Better news!! You have one of the brand-new Version 2.0 units. We removed the sensors as we have found after extensive research sensors don't do what they are intended to do. Instead, with every unit that has one, the air around the unit gets clean very fast and drops the motor speed to low. Then the air in your home does not get cleaned the way you want or need. I have run mine on speed 2 all day 24/7 for a year now, and I designed these. And when I leave the house, I turn on highest to turbo clean the air. This new machine has a 13% higher CADR and cleaning area than v1.0. The ionizer also works on speeds 2 and 3 only. We did that to keep low and sleep as quiet as possible. The unit is much better than before. We are the #1 selling unit on Amazon between $200 and $300. We listen to our customers and improve to satisfy your needs. God Bless you." As you can see, this doesn't really address any of the quality control issues I brought up. There is no apology for the confusion over the air quality sensor. Just hey, our product is super cool and we really like it. After receiving this non-response, I decided to return the unit. I was surprised to find out that to return it, I was required to ship it at my own expense. For me on the west coast, the shipping cost was ~$80 for UPS ground! In the end, I decided to just eat this mistake. I will put the unit in my garage or laundry room where it can do its thing without me having to listen to it all the time. I will likely look for a different brand to place in my living room. Hope this review helps someone. ... show more
Reviewed in the United States on May 26, 2020 by Amazon Customer

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