Fisher & Paykel Bias Flow Diffuser For FlexiFit 405/Oracle Oracle CPAP Mask - 10PK
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Fisher & Paykel Bias Flow Diffuser For FlexiFit 405/Oracle Oracle CPAP Mask - 10PK

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Bias Flow Diffuser for Fisher & Paykel FlexiFit 405 and Oracle Oral, 10PK

This pack includes 10 Bias Flow Diffuser filters for the Fisher & Paykel FlexiFit 405/Oracle oracle masks. The Fisher & Paykel CPAP Mask filter actively works in mitigating the noise generated from the mask during therapy and works with exhalation holes to dissipate air away from your bed partner.

Key Features

  • Noise Mitigation
  • Easy to Install


How many filters are included in each pack?

There are 10 filters per pack.


Model 900HC439
HCPCS Code A7034/A7035

10 per pack.

Michael D(Verified Purchase) 10/27/2018
5 of 5 Stars!

These are the noise cancelling filters for the HC405. The also act as an additional filter to the air that you breath. They are durable and easy to use. Although the are said to be disposable I usually wash them and re-use them and they hold up well.

Aron X 11/07/2014
5 of 5 Stars!

Just wanted to know if you also carry a 5/pk foam diffusers. They told me they'll look into it.
It has been a great pleasure doing business with you. Awesome customer service. Shipping was fast. Impressive overall experience. Thank you!

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