Invacare Perfecto2 Series User Manual page 19

WARNING!
Risk of Injury or Damage
Failure to properly install the humidifier bottle or other
accessories to the concentrator will impact the flow of
oxygen.
– To check for proper operation of the oxygen
concentrator and accessories, place the end of the
nasal cannula under the surface of a half-full cup of
water and look for the bubbles.
– If there are no bubbles, check all connections
(including humidifier bottle and other accessories, if
applicable) and repeat. Contact your dealer or service
provider immediately if bubbles still do not appear.
Humidifier Bottle with Cap
Humidifier Bottle without Cap
1195656-A
Usage
19