Goodknight 420E from Puritan Bennett

This is an auto-adjusting CPAP machine which is set for a range of pressures, then seeks out and delivers the lowest level of pressure needed to keep the airway open. The pressure level will vary as needed, but it will not lower with each exhalation as a bilevel does. The auto-adjusting CPAPs were designed for patients who are unable to participate in a sleep study or whose pressure needs vary during the night according to their stage of sleep or sleep position.

Product Features

Smallest, lightest CPAP on the market.
SilverLining Data Management software option to download compliance and session data.
International power supply to operate on any AC current from 110 to 240 without adjustment to the machine. (An adapter may be needed to plug the CPAP into a wall outlet outside the US.)
Automatic altitude adjustment.
Direct DC operation without the need for a DC/AC inverter, just a cable and adapter which are sold separately.
Automatic leak compensation.
Two washable, reusable pollen filters are included; optional ultra-fine filters are available.
Two year manufacturer warranty against defects.

The Goodknight 420E operates automatically between 110v – 240v AC. When traveling either inside or outside the USA, there are no switches to switch or fuses to change. The machine will automatically sense what voltage is needed and set itself to run on the power needed.

Pressure Range 4cm to 20cm H2O
Ramp Time 0 to 30 minutes in CPAP mode; Automatic in Auto mode.
Starting Ramp Pressure From 4cm up to CPAP pressure, patient-adjustable in CPAP mode
Dimensions 5.6" x 2.9" x 7.7"
Weight CPAP: 1.54 lbs.; Power Supply Module (included): .21 lbs.; Total weight 1.75 lbs.
Altitude Compensation Automatic - maximum height 7800 feet.
Electrical Requirements 100 – 240 AC, 12volt DC