SleepStyle Water Chamber



Masks Size Guide

Replacement water chamber for Fisher & Paykel built-in heated humidifier of Sleepstyle series. Use distilled water in the reservoir tank to prevent a corrosive build-up of calcium and lime which can develop with use of tap water. Water chamber only, lid seal and machine sold separately. 

Additional Info

For disinfection purposes, when cleaning, use one part vinegar and four part water. Sleepstyle Lid Seal is not included with water chamber but is required for use.

  • Dimensions: L 5.13" x W 4.13" x H 3"
  • Weight: 5.57 oz (0.35 lbs)
  • Chamber Capacity: 380mL (12.8 oz)
  • Dishwasher Safe: Yes, but only once per week
  • Device Life Expectancy: 6 - 8 months


Related Items

Sizing Guide For Select CPAP Masks

Select CPAP Masks have sizing guide to help you select a size. 

Click on the mask name below to view, print and measure with their size guide.

Other masks are packaged as fitpacks with all size cushions included and do not have size guides available. 

Nasal Masks

Full Face Masks

Other helpful resources:

How To Select A CPAP Mask – Help Centre - All the help you need...instantly! (

What Size CPAP Mask Do I Buy? – Help Centre - All the help you need...instantly! (