Filter Cover for S9™ Series CPAP/BiLevel Machines


7 Total Reviews

Filter Cover

  • Brand:ResMed
  • Part Numbers:36859

This Filter Cover snaps onto the back of all S9 CPAP/BiLevel Machines to cover the filter compartment. It will also help protect the device in the event of accidental liquid spillage. The filter and filter cover should be fitted at all times when using any ResMed S9 Machine.


  • Manufacturer:ResMed
  • Part Numbers:36859
  • HCPCS Codes:E1399
  • GTIN Codes:00619498368594
  • FSA Eligible:Can be purchased with FSA Cards
  • My new favorite !

    cpapXchange is my new go-to CPAP supplier, great buying experience.
    Written by vtfl12, FL -2019-09-19

  • good

    easy to order..........................
    Written by angel12824, -2018-10-31

  • Excellent Service!

    I had a wonderful experience ordering my CPAP supplies from cpapxchange!
    Written by sjuarez, -2018-09-17

  • Timely service

    Great experience. Shipped on time and I was notified each step of the way. No complaints.
    Written by amyshappell, -2018-07-31

  • The exact part I needed.

    I needed this piece on my CPAP machine. I ordered it and got it fairly quickly and it fit perfectly. Very happy.
    Written by beckywiren, -2018-01-16

  • Just as described

    Fast & affordable, great overall experience
    Written by cameronmatter, -2017-10-24

  • The s9 filter cover is abysmal

    The S9 filter cover is flimsy, easily warps over time and entirely inadequate (*in my opinion*) to protecting the lifespan of this important and costly device. Indeed, I find myself wondering if it wasn't chosen to reinforce product obsolescence. Between the filter (which barely covers the air inlet) and the filter cover, I can't imagine how you can expect the machine to last multiple years.
    Written by Michael D, -2016-01-15