• The G3 A20 / G3 C20 system is a CPAP (Continuous Positive Airway Pressure) device designed for the treatment of adult Obstructive Sleep Apnea (OSA) only, either in the hospital or at home.
• The device is to be used only on the instruction of a licensed health care professional. Your home care provider will make the correct pressure settings according to your health care professional’s prescription.
• Several accessories are available to make your OSA treatment with this device as convenient and comfortable as possible. To ensure that you receive the safe, effective therapy prescribed for you, use only BMC accessories.


• Continuous positive airway pressure (CPAP) is a method for patient who have sleep apnea disorders.obstructive sleep apnea is a sleep disorders when your breathing stop and starts. • Obstructive sleep apnea causes interruption breathing often because your throat or airway temporarily block them. • A CPAP machine works a compressor motor generates a continuous steam of pressurized air that travel through an air filter into a flexible tube. • The machine works on a steady floe of pressurized air into your nose and mouth as you sleep it keep your airways helps breathe normally. • The airstream from the CPAP machine pushes against any blockages opening your airways so your lungs receives plenty of oxygen. • It improves your ability to sleep without walking up. • It lowers your risk of having a heart attack stroke or other cardiovascular attack. • It hepls lower your blood pressure. • It reduces daytime sleepiness. • It may reduce blood glucose and cholesterol level. • Blood pressure • Heart disease • Reduce stroke risk • Upper airway resistance syndrome

Benefits & Specifications

• Super Quiet Operation with multi-stage noise reduction technology
• Auto-Humidity Control
• Pre-Heating Humidifier Option Available
• Auto-Ramp feature Senses patients Sleep/Wake State
• Central Apnea Detection
• Adjustable Algorithm Sensitivity
• Optional Smart Auto-Adjusting Pressure Treatment based on pressures from the previous 5 nights of use
• Fine-Particle Pollen Filter and Silencer (6 month life)
• 5 methods of data access including: On Screen display, SD Card via PAP Link PC software, SD Card quick report, Wifi – optional module, data available to homecare provider and PAP Link Mobile app available for QR code data access.
• Accessory Change Reminder function
• RESlex – with three comfort settings.
• 5 heater settings on heated humidifier and heated tube
• Real-time alert for tubing/mask leak
• 4-20 cm therapy pressure


Pressure Range

Work Mode

Pressure Range


4 to 20 hPa

Ramp Time

0 to 60 minutes

Reslex (Expiration Pressure Release)

Off, Level 1 - 3

Target Vt (for G3 B25VT, G3 B30VT and G3 LAB only)

Off, 150 - 1500 mL

Rise Time (for BPAP only)

Level 1 - 4

I Sens. (Inspiration Trigger, for BPAP only)

Level 1 - 8

E Sens. (Expiration Trigger, for BPAP only)

Level 1 - 8

Respiration Rate (for BPAP only)

3 - 40 bpm

Inspiration Time (for BPAP only)

0.3 - 3.0 s

Device Size

Dimensions (L x W x H): 265 mm × 145 mm × 114 mm

Weight: 1.7 kg

Heated Humidifier

Humidifier Settings: Off, 1 to 5, Auto (95°F to 154.4°F / 35°C to 68°C)

Humidifier Output: No less than 15 mg H2O/L

Environmental Conditions: Maximum airflow, 35°C, 15% relative humidity

Maximum Operating Pressure: 40 hPa

Pressure Drop with Humidifier: < 0.4 hPa at 60 LPM flow

Maximum Delivered Gas Temperature: ≤ 43°C

Water capacity: To maximum fill line 360 mL

Data Transfer

Cellular Module, Wi-Fi

Data Storage

On board: Summary data, all the time; Detailed airflow data, 1 day. SD card: Summary data, all the time; Detailed airflow data, 546 hours.

Electrical Requirements

100 - 240 V AC, 50/60 Hz, 2.5 A Max

100 - 240 V AC, 50/60 Hz, 2 A Max

Static Pressure Stability

±0.5 hPa

Sound Pressure Level

< 26 dB, when the device is working at the pressure of 10 hPa.

Sound Power Level

< 34 dB, when the device is working at the pressure of 10 hPa

PM2.5 Filter

Efficiency: > 95% for 2.5 micron dust

Air Tubing



Inner diameter

15 mm standard tubing

6 ft. (1.83m)

15 mm

22 mm standard tubing

6 ft. (1.83m)

19 mm

22 mm heated tubing

6 ft. (1.83m)

19 mm


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