Bilevel is the generic term to describe these machines. BiPAP, for Bilevel Positive Airway Pressure, is registered with Respironics; ResMed uses VPAP for Variable Positive Airway Pressure.
The Puritan Bennett GoodKnight 425 Bilevel machine includes the following features:
Smallest, lightest Bilevel, BiPAP or VPAP on the market.
SilverLining 3.10 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.)
Direct DC operation without the need for a DC/AC inverter, just a cable and adapter which are sold separately on our site.
Automatic altitude compensation adjustment.
Two washable, reusable pollen filters are included; optional ultra-fine filters are available.
2 year manufacturer warranty against defects.
Specifications:
Performance:
Performance range: 3 to 25 cm H2O (+/- 1 cm H2O)
Pressure adjustment: 0.5 cm H2O
Maximum pressure at the patient connection port under single fault condition: 36 cm H20
Maximum sound level warranted at one meter: 31 dBA at 10 cm H2O
Ramp time: 0 to 30 minutes (5 min. increments)
Sound level measured in accordance with ISO 17510-1:2002: 25.5 dB(A)
Physical Characteristics:
Size: 5.6" W x 2.9" H x 7.7" L (14.2 cm x 7.5 cm x 19.5 cm)
Weight: 1.55 lb (780 g)
Power Characteristics:
Power supply: Input range 100-240 V, 50-60Hz
Power consumption: 40 W
Battery: 12 VCC, power supply 13 VCC
Environmental Requirements:
Operating temperature: +41 F to +104 F (+5C to 40 C)
Altitude range: 0 to approximately 7800 ft (0 to 2400 m)
Operating humidity: Between 15% and 95% noncondensing
Operating pressure range: 700 hPa to 1060 hPa
Storage temperature: +4 F to +140 F (+20C to 60 C)