5-Packs ZNS Elements Universal in-Line Filters for CPAP/BiPAP Hose - Filters Out Impurities and Improves Experience - Compatible with Most Machines 22MM & 15MM - 5-Packs

I purchased these CPAP filters for my husband's CPAP machine, and we've been very impressed with their performance. They were easy to install and fit perfectly in the machine. We noticed a significant improvement in air quality after using these filters. They effectively trapped dust and allergens, which helped my husband breathe easier and sleep more comfortably. The pack of 5 filters is a great value, and we appreciate the convenience of being able to replace them regularly. Overall, I highly recommend these filters to anyone in need of a reliable and effective filter for their CPAP machine!

These filters are so good! I switched out the current filter on my machine with one of these, and I could immediately tell the difference! The air coming through is so much cleaner and just feels a lot better. I hate to think of what was getting through to my lungs before I changed filters. These work so good, and I’m happy there are extras that can be used in the future!

I love these. I snorkel and was always getting water in my ears that lingered for days. These are comfortable , block water, and still allow me to hear what is going on around me and speak with my travel mates.Suggest a little water for lubricant before use as they can be a bit dry and you need to move them around for the best fit.

So far so good!

I will start by saying that I am a special case. My sleep apnea is caused by a paralyzed hemi-diaphragm so my breathing is compromised to begin with. The thought of cleaner air is a no-brainer, and these filters are very easy to use, it's just that they restrict the air flow just enough to make breathing uncomfortable. I gave them a break-in period but could never get used to them. The majority of other people seem to love them though. I wish I was one of them!

These work perfectly with my Resmed CPAP machines. I attached them easily and after some weeks of use I could see that it definitely trapped some particles! I replaced them easily. I like that each filter is nearly packaged individually, too! This way they stay clean and uncontaminated. And I can breathe with some rest of mind!

Good filter for my CPAP machine at a reasonable price.

these are like an extra filter for your machine. they are easy to put on and use.