Checking
WARNING
Discontinue use and contact the care provider or ResMed Service Center if any of the following occur:
device does not perform as usual
device is making unusual sounds
device is damaged
If using a bacterial/viral filter, regularly check it for signs of moisture or other contaminants, particularly during nebulization or humidification. Failure to do so could result in increased breathing resistance or affect the delivery of the therapeutic pressure.
CAUTION
If any visible deterioration of a system component is apparent (cracking, discoloration, tears etc.), the component should be discarded and replaced.
Regularly check the humidifier tub, air tubing, and air filter for any damage.
Check the humidifier tub:
Replace it if it is leaking or has become cracked, cloudy, or pitted.
Replace it if the seal is cracked or torn.
Check the air tubing and replace it if there are any holes, tears, or cracks.
Check the air filter and replace it every six months. Replace it more often if there are any holes or blockages by dirt or dust.