A:AnswerThis inverter can support 150V continuous with a 175W surge. The device you are describing requires 960W. You will need a larger than can support 1800W peak. We suggest a 1200W or 3000W inverter for this usage.
A:AnswerIt depends on the wattage the air compressor draws. This inverter can support 175 watts peak, and 150 watts continuous. If the air compressor draws more than 150 watts, this inverter will not be able to support the device.
A:AnswerGood question. This is an "inverter", and it is used to energize 120-volt A/C devices. You don't need this to operate a 12-volt D/C device. Plug you C-pap machine into the lighter socket in your vehicle.