Fisher & Paykel Nova™ Nasal CPAP Mask Diffuser
The Fisher & Paykel Nova™ Nasal CPAP Mask Diffuser is a key component of what makes the Nova™ Nasal so quiet. Designed to minimize draft and noise created during sleep apnea therapy, this conveniently washable diffuser maximizes comfort for not only you, but your sleep companion as well.



Fisher & Paykel Nova™ Nasal CPAP Mask Diffuser Overview
The F&P Nova™ Nasal mask is designed with a unique Diffuser System that diffuses air that is expelled from your mask to reduce draft and minimize noise for you and your sleep partner during CPAP therapy. An internal validation trial conducted by Fisher & Paykel showed that 43 out of 43 participants rated the noise level of the F&P Nova™ Nasal mask while sleeping as “quiet” or “very quiet”. The Nova™ Nasal diffuser does not significantly change the amount of air flow coming from your mask; therefore, the mask can be used with or without the Diffuser. Maximize convenience and comfort with the Nova™ Nasal CPAP Mask.
Exhaust flow information*
Pressure (cmH₂O) 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Flow with Diffuser (L/min) 19 21 25 29 32 36 39 42 45 48 51 54 56 59 Flow without Diffuser (L/min) 21 26 30 34 38 42 45 49 52 55 58 61 64 66 *Due to manufacturing variations, the exhaust flow rates may vary from the nominal values shown above.
- Minimizes draft during CPAP therapy
- Reduces noise for you and your sleep companion.
- Conveniently washable for less frequent replacement.
- Easy to attach and disassemble for replacement and cleaning.
- Compatible with the Nova™ Nasal CPAP Mask by F&P.
Product Materials
Component Material Diffuser Polycarbonate (PC), Polyethylene Terephthalate (PET)


Nasal CPAP Masks:
Breathing Style:
-
Nasal Breathers
- Mouth Breathers (when paired with a CPAP mask chinstrap)
Sleeping Style:
-
Back Sleepers
-
Side Sleepers
-
Active Sleepers
Additional Considerations:
-
High Pressure Settings
- Glasses Wearers
- Claustrophobia
- Facial Hair
-
Full Field of View for Reading or Watching TV Before Bed
-
Tossing and Turning During Sleep
The Nova™ Nasal Mask Diffuser should be replaced every 3 months, or sooner if noticeable damage, discoloration, or loss in performance is detected.
The following is a replacement schedule for other, unincluded CPAP supplies that are essential to resupply:
- CPAP Mask Frame Replacement Frequency: Resupply Every 3 Months
- CPAP Mask Cushions/Pillows Replacement Frequency: Resupply Every 2 Weeks
- CPAP Mask Headgear Replacement Frequency: Resupply Every 6 Months
- CPAP/BiPAP/APAP Machine Replacement Frequency: Resupply Every 5 Years
- CPAP Machine Humidifier Water Chamber Replacement Frequency: Resupply Every 6 Months
- CPAP Machine Disposable Air Filter Replacement Frequency: Resupply Every 2 Weeks
- CPAP Machine Reusable Air Filter Replacement Frequency: Resupply Every 6 Months
- CPAP Machine Air Tubing Replacement Frequency: Resupply Every 3 Months
Cleaning Guide
Regularly cleaning your CPAP mask parts and components is crucial for avoiding the accumulation of bacteria, debris, oils, and other contaminants. This will help prevent the buildup of germs that may cause skin irritation and other unwanted side effects. The instructions below provide a guide for cleaning washable mask diffusers only.
Before following the instructions below, first disassemble your mask diffuser from above your tubing and nasal cushion:
Part Cleaning Frequency Instructions Washable
Mask Diffuser
Weekly
- Using a mild soap* wash your mask diffuser in soap-dissolved, lukewarm water. Do
not soak for more than 10 minutes. - Rinse thoroughly in fresh water ensuring that all soap residue is removed.
- Allow to air dry, avoiding direct sunlight.
*Avoid using strong detergents or soaps, especially those that contain harsh chemicals, perfumes, dyes, moisturizers, or alcohol.
You can find more useful information regarding CPAP cleaning with this blog:
How to Clean Your CPAP Supplies & CPAP Machine (And Why It’s Important)
- Using a mild soap* wash your mask diffuser in soap-dissolved, lukewarm water. Do
| Brand | Fisher & Paykel |
|---|---|
| Weight | 0.05 lbs |
| SKU | 29294 |
| Model | 400NVN151 |
| HCPCS | A7045 |
| UPC | 09420012473677 |
| Prescription Required | No |
| FSA/HSA Eligible | Yes |













