This Diffuser Elbow Kit with Female Swivel comes standard with all FlexiFit 405 (HC405) Nasal CPAP/BiPAP Masks and Oracle (HC451 & HC452) Oral CPAP/BiPAP Masks. It can also be used to replace the Non-Diffuser Elbow that comes standard with all FlexiFit 406 (HC406) and FlexiFit (HC407) Nasal CPAP/BiPAP masks. The Diffuser elbow features a foam diffuser and diffuser cap to help reduce airflow noise levels during sleep. This kit includes the Elbow, Foam Diffuser, Diffuser Cap, and Swivel.

Write a Review

  • Fisher & Paykel Air Diffuser

    After many years of blowing air onto my partner's back, F&P finally gave me a wonderful option. Not only does this diffuser stop the airflow, but makes the mask more quiet. Great design.
    Written by Marty, 2015-02-21


  • Swap out your elbow

    If you have a F&P 407 that you love dearly (as I do) except that the elbow vent whistles like a firehouse siren in the night disturbing your sleep, order this from the F&P 405 with the filtered diffuser and swap them out (perfect fit). Quiet as a church mouse all night.
    Written by Ronnie , 2014-08-15