Foam Diffusers for Various FlexiFit & Oracle CPAP/BiPAP Masks (10 Pack)


6 Total Reviews

Foam Diffusers

  • Brand:Fisher & Paykel
  • Part Numbers:900HC439

These Foam Diffusers are designed for use with the Diffuser Elbow available for all FlexiFit 405 (HC405), FlexiFit 406 (HC406), and FlexiFit (HC407) Nasal CPAP/BiPAP masks, and all Oracle (HC451 & HC452) Oral CPAP/BiPAP Masks. Each pack includes ten foam diffusers.


  • Manufacturer:Fisher & Paykel
  • Part Numbers:900HC439
  • HCPCS Codes:E1399
  • GTIN Codes:09420012414748
  • FSA Eligible:Can be purchased with FSA Cards
  • Very satisfied.

    Fast shipping. Great deal.
    Written by paulscramer1960, -2018-04-16

  • Great product

    Very prompt service and a great product.
    Written by ALKAUFFMAN210, -2018-01-31

  • Filters that work

    They are easy to take part and to load and they work great and the price is good!
    Written by bigdofwi, -2017-12-11

  • So sick of the whistling noise

    These wont seal right and they're driving me nuts
    Written by Stevie, -2015-03-05

  • elbow filter

    a must for muffling the noise. good price.
    Written by marietta, -2015-01-11

  • Foam Diffusers

    These are much needed. I wish there was a better way to get them. The cost plus the shipping if these are all you need seems high. Maybe if there was a filter you could wash and replace.
    Written by Steve, -2014-01-23