Medify MA-40 Air Purifier with True HEPA H13 Filter | 1,793 ft² Coverage in 1hr for Smoke, Wildfires, Odors, Pollen, Pets | Removal to 0.1 Microns | White, 1-Pack

I'm very happy with this purifier. As was mentioned in other comments, I question the purifier's blue light which would indicate excellent quality air. Upon startup, after a minute of operation, the light always reverts to blue. I don't think the air quality had been horrible previously, but I'm not running the purifier because I thought that the air was of excellent quality to begin with.OdorsSince we don't have smoke in our home or any visible contaminants, odor is really the only result that I can judge for myself. I do not trust the light in this machine that stays on blue constantly. I was not expecting much of a difference in odor after researching purifiers. I had read that charcoal filters don't help much because in many purifiers the air is not in contact with it long enough to make a difference. It took a couple of days, but the difference in odor is amazing. There was initially a very distinct odor in the air. I can't detect any odor any more. While I have no way of proving that other contaminants in the air have been removed, I really have no reason to question it either.IonizationThis is just an extra feature of the unit that I will never use. There is question about how well this technology works and whether it causes more problems than it fixes. I cannot say how well this feature works. The best part about the ionizer is that when the purifier starts, the ionizer does not automatically start and I never have to use it.FiltersThey're a bit more expensive than some of the other models than I had looked at, but they are a higher level of HEPA that will filter the air better. Given the difference in quality, as long as I'm paying for filters to clean the air, I'll take the better ones. Filters are also very easy to install.Air quality indicatorApart from having to buy an ionization system that I didn't want, this is my only other problem with this machine. While running, it ALWAYS shows excellent air quality. There are only 3 levels of contamination indicated so even if I knew the light was working properly, it's only a broad indication about how bad the air might be. Judging by the only criteria available to me, odor, the purifier has made a big difference in our indoor air quality so I'm just ignoring the light.All in all, I'm very happy with this. While I don't trust the air quality indicator and I'd prefer not to have to buy the ionizer, these issues are not sufficient for me to lower the rating from 5 stars. It filters smaller particles than other purifiers on Amazon, the price is not significantly more for this capacity of purifier, and I am so much happier breathing the odor-free air that this purifier produces. I don't have reason to buy this purifier again (life-time warranty if I sign up within 30 days on their website and continue to change the filters as required by the warranty), but I am considering buying other purifiers from the same manufacturer for other, smaller, rooms of our house.

Works very well, very easy to set up as there is no installation besides the filter, the size is on the larger side, but fit well in a room, the fan speed has several settings. There’s one that is quite quiet to one that is on the side., and we use it to help keep our air quality good as we all have a lot of allergies and respiratory illnesses. I recommend this and would buy it again.

I purchased my first Medify Air MA-40-B1 V2.0 Air Purifier with H13 HEPA filter on 11/27/20 and received it on 12/04/20. Today is 05/15/21. I have used this product for the past Five (5) months and it has worked perfectly since the day I received it and started using it. I never had any problems. It works perfectly. It is a excellent product. Runs quietly with a very small amount of noise. Actually I put it on one hour setting or the sleep setting in the evening to go to sleep at night. It has a soothing, calming sound. I can watch tv with it on, I can cook with it on, talk on the phone with it on, relax with it on, work on my Lap top with it on. When covid-19 was very bad it kept the air free of germs and pathogens and now that I that have attained my vaccine, and with the states covid -19 status/ratings much better, I can entertain company again (with caution of course) along with my Medify Air MA-40-B1 V2.0 Air Purifier on. I can use this product all the time, Also as the company/Medify Air requires Within 6 months of my purchase (June/2021) or 3,000 hours of use (which ever comes first), I will order a replacement filter. (Your product will let you know when you reach 3,000 hours of use - SEE Manual/Instructions - Booklet that comes with the product) I have already ordered a another Medify Air MA-40-B1 V2.0 Air Purifier on April 3, 2021, and received it on April 6, 2021. I will also write another review on my new one after months of use, although I am confident that it will provide excellent service as the first one has done. ( I am truly considering purchasing two (2) more, for two other rooms). This is a excellent product for anyone that has allergies, Asthma, Hayfever, with itchy watery eyes or that has a problem with pollen, dust particals, cooking odors (especially fish and/or Garlic), or if you have pets, or if you just want clean fresh smelling, purified air. You must purchase a Medify Air MA-40-B1 V2.0 Air Purifier …. Excellent Product. DB