Medify MA-40 Genuine Replacement Filter for Allergens, Smoke, Wildfires, Dust, Odors, Pollen, Pet Dander | 3 in 1 with Pre-filter, HEPA and Activated Carbon for Removal to 0.3 Microns | 1-Pack

Works how it says!

Got a good price on two for a great filter, Even a better filter than what was originally supplied.

These filters do a wonderful job in the air cleaner. I have been using the air cleaner for about 7 or 8 years.

Just as they claim, it is an official replacement and a decent price

Exactly as described and exactly what I needed

I've consistently bought Medify Air filters for my MA-40. This HEPA 14 version offers higher filtration than the HEPA 13 filters I normally buy, even though HEPA 13 is already more than sufficient. It was significantly cheaper when I purchased it in July 2026, so it seemed like a great opportunity to stock up. One thing I noticed is that previous filter orders usually arrived in a Medify-branded box, while this one came in a plain Amazon box wrapped in plastic. The HEPA 14 filter is blue, whereas the HEPA 13 version is black. That said, Medify replacement filters are quite expensive. Also, Medify states that using non-Medify filters can void the warranty, so that's something to keep in mind if you're considering cheaper third-party alternatives to save money. I honestly don't know how much of a real-world difference these machines make day to day. There are plenty of claims and specifications, but I'd love to see more independent, real-world testing from third parties rather than relying solely on manufacturer marketing.

Just what I expected.

We have these on auto ship. They really do clean the air. Both my son and husband have terrible allergies and my neighbors are always burning stuff so this helps our household to maintain a cleaner living space.

I've used the original filters and found they are good just put this one in so testing it's life but I like it already and find they do a great job as I have asthma and find the breathing to be much better. I will be definitely buying this one again.

Filtration de l’air parfait mais un peu bruyant