This machine was on sale for an incredible price and I ordered it as a home backup unit to my everyday ResMed AirCurve 10 VAuto. The order was rejected after payment cleared because the Rx was for bi-level but interestingly respshop.com filled the order for my ResMed AirMini on 2/23/2023 from the same Rx. Hopefully those who received their orders enjoy this budget machine.