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Yes there is a leak detetction function in Z1 cpap machine i.e. automatic w/compensation.

The compressed air moves to the sieve bed filters. The sieve bed filter plays an important role, as it is the device that removes the nitrogen from the air. After air is first compressed in the concentrator, it is forced into the first sieve bed. Oxygen is sent into the product tank.

Yes it has a adjustable ramp time i.e 5 to 45 minutes in 5 minute increments and pressure in 0.5 cm H2O increments.

It is a full functioning LCD screen 1.5' x 0.75'.

Z1 device, tube adaptor, 4 ft slim style tube, power supply, custom USB cble, HME, user manual.

The Z1 only makes 26 dBA of sound during operation. By cpap industry standards that is considered to be exceptionally quiet. In fact, the Z1 is one of the quietest machines on the market. The Z1 is the lightest cpap machine available anywhere. At only 10 ounces it is a great everyday machine that is also ideal for travel. The Z1 has an optional int