How can I tell if my ResMed device has been damaged by ozone?

SoClean, Ozen

An indicator of damage is an unacceptable change in noise level during therapy. ResMed can determine if a ResMed device has been damaged by ozone from a visual inspection of the device interior. If you open the ResMed device, the limited warranty is void. 

Ozone damage to ResMed devices sold to patients on or after February 1, 2020, will not be covered by the ResMed limited warranty.