CPAP Filters Compatible with ResMed Airsense 11 Filters - Disposable Felt air Filter - 40 Pack - Made in The USA CPAP Filter Supplies Series Machines - by Mars Wellness

They fit. They filter. The price is great, providing a year's supply when changed per my CPAP provider's schedule. I'll buy more when this supply runs out.

I am happy to find these air filters that fit my AirSense 11. When I first got the machine last year, my usual supplier did not have the correct size, and I had to cut AirSense 10 filters to size! Plus they did not have ones for allergies. My insurance only allows me ONE air filter per month, which is not enough, as I change them every 2 weeks and sometimes once a week if I have a cold or a lot of nasal secretions. So I'm glad to find these, which are affordable and what I need, so I can always have a supply.

I have been using these filters for several months now. I get a little, not quite paranoid, but maybe focused on preventative maintenance. I also have pretty rough allergies and live in one of the major agricultural areas of the country. I bought these hoping they would help with night time allergies. I paired these filters with the ones Apria was sending me through my insurance. I put the "factory" filters on the outside, and these filters behind. After every filter change I found that these filters were doing far more work than those from Apria. If you look at the attached image you will see the grid from the filter door on the APAP machine showing the OEM filter as the first in line on the left side of the image. The product this review is for is on the right. Note the marked difference in entrapped dirt. See the difference for yourself. This is a good product.

Just right!

Works for the purposes needed

As the add shows

This is a good deal to me anyways . Where my husband got them they charges alot in the office. So thank you

Perfect for the machine.