Thank You both for your comments. I was able to reach Breas support and they figured the unit was defective, likely an air leak internally and asked me to return it to cpap.com where I purchased it. I called cpap.com and they refused to accept it as a refundable return, only as a potential warranty ...

I currently use a Resmed Airsense10 APAP. I just purchased today a Brias Z2 for travel. Testing it tonight I find it impossible to use. It is set to auto start APAP. Initial pressure is 5. I start breathing and it starts at 00. A few seconds later trying to inhale with zero air pressure I get an ins...