Transcend Micro AirMist HME Pack Size:4-pack This filter should be changed

This filter should be changed out monthly to prevent any degradation in the oxygen output of your concentrator

or scratches

To remove the beeping noise

Mounts securely to your wheelchair or scooter so your drink is always within easy reach

and has the ability to hold a high weight capacity

Transcend Micro AirMist HME Pack Size:4-pack This filter should be changedHME stands for Heat and Moisture Exchanger. This cartridge like component offers just that, and makes CPAP use much more comfortable with use. These HME units are compatible with the Transcend Micro CPAP adapter piece, and should be changed out on a weekly basis. If you want the easiest way to maintaining a healthy replacement regimen, try selecting "Subscribe and Save" with your check out. Otherwise, the Transcend Micro AirMist HMEs come in a 4 pack;