Foam Diffusers for Various FlexiFit & Oracle CPAP Masks - 10 Pack

Foam Diffusers for Various FlexiFit & Oracle CPAP Masks - 10 Pack

4.57 Average Rating of 7 Reviews Read Reviews

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The Foam Diffuser fits in the elbow, beneath the filter cap, when in use. Each pack includes 10 Foam Diffusers. Diffusers should be changed regularly when soiled.

Product Information

  • Manufacturer Fisher & Paykel
  • Part Number(s) 900HC439
  • HCPCS Code E1399
  • GTIN / UPC Code 09420012414748
  • Country New Zealand, Mexico (Typical Origin)


Average Rating of
Total 7 Reviews
  • Two Sides are different

    At first I thought these were inferior to the one that came with the mask diffuser elbow. When I used one for the first time, it was quite noisy. I ended up putting two in to make it quieter. But when I looked at them again the next time, I saw that the two sides of it were slightly different. One side is harder and the other side is fluffier. I tried it both way and found out that if the hard side faces out it's pretty quiet. If the hard side faces in, it's quite noisy when I breath. Hard to believe that little difference makes such a big change in sound. I downgraded it one star because I think it should have been printed on the bag or posted in the instructions. Other than that, they are "very good"
    Written by R.K., 2016-03-03
  • Hard to find item for CPAP.

    I have only lately started using a mouth breathing CPAP mask (Oracle 452). Because of the location of the diffuser it needs changing more frequently. I was at a loss to find this small item until I checked the Direct Home Medical site. They responded promptly and now I have a reliable source.
    Written by Charlibart, 2015-06-28
  • Exact replacement

    The item was received via USPS less than a week after I placed the order. It was an exact replacement for the ones on my CPAP mask.
    Written by K Kenney, 2014-03-19
  • Does the job!

    Good filters, nice price too :)
    Written by Mark, 2014-03-18
  • Not quite right

    Correct material, but wrong cut. I can use them, I will just need to field modify for fit.
    Written by Bonuseventus, 2014-02-03
  • Foam diffusers

    These are great!!!!!
    Written by J. Maker, 2013-02-27
  • Diffusers

    I was reluctent to order before, because these filters looked nothing like those I have been using. The change in picture made it easier to decide. I am very pleased with the speed of delivery and the quality of purchase.
    Written by May, 2012-07-26