Phillips Respironics Logo

Respironics A40 BiPAP

4,875.00 $

Philips BiPAP A40 is designed to provide effective long-term therapy for patients suffering from conditions such as sleep apnea and other chronic respiratory challenges. Unit can be used for intubated patients

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Respironics A40 BiPAP Description

Philips BiPAP A40 is designed to provide effective long-term therapy for patients suffering from conditions such as sleep apnea and other chronic respiratory challenges. The system is programmed to monitor the patient’s upper airway resistance and adjust EPAP delivery automatically to keep the airways open.

The device simultaneously monitors and adjusts pressure support to maintain TTV (Target Tidal Volume). Set to Auto breath rate, the device adjusts the backup breath rate based on the patient’s spontaneous respiratory rate.

With patient comfort foremost in their minds, designers have equipped the BiPAP A40 with the clinically proven Auto-TRAK algorithm with an enhanced leak compensation technology to handle changes in respiration.

Average Volume Assured Pressure Support (AVAPS) is a feature available in the S, S/T, PC, and T modes. (In AVAPS-AE mode, the AVAPS feature is always enabled.) AVAPS helps patients maintain a tidal volume (VT) equal to or greater than the target tidal volume (Tidal Volume setting) by automatically controlling the pressure support (PS) provided to the patient. Bi-Flex Comfort Feature-If enabled, the device provides a comfort feature called Bi-Flex in S mode only.

The Bi-Flex attribute adjusts therapy by inserting a small amount of pressure relief during the latter stages of inspiration and during active exhalation (the beginning part of exhalation). Ramp-The device is equipped with an optional ramp feature.

The ramp feature is designed to offer lower pressures when activated and then gradually increase to allow the patient to fall asleep.

Airline Travel-The device is suitable for use on airlines when it is operating from an AC or DC power source.


Phillips Respironics

Respironics was founded in 1976 near Pittsburgh, Pennsylvania and they introduced their first CPAP machine in 1985. In 2008, Respironics was acquired by Philips, a world leader in health and home care technology. The company portfolio includes advanced technology and integrated solutions that support healthy living, prevention, diagnosis, home care and treatment. Its focus is innovation in sleep apnea management, oxygen therapy, non-invasive ventilation, and respiratory drug delivery based on the needs of its customers.The Philips company has its headquarters in the Netherlands and has approximately 74,000 employees in 100 countries. In 2017, the company’s health technology division generated EUR 17.8 billion in sales.
Phillips Respironics Logo

Additional information

Weight4.4 lbs
Dimensions8.75 × 7.25 × 4.25 in

Patient disconnection, Apnea, Low minute ventilation, Low tidal volume with AVAPS only), High respiratory rate


Philips Respironics

Data management

EncorePro 2 and DirectView software Compatible with oximetry module, Advanced detection of residual respiratory events (Apnea/Hypopnea Index, Obstructed Airway Apnea, Clear Airway Apnea, Hypopnea, Periodic Breathing, RERA, Large Leak and Snore)

Pressure Range

4-20 cm/H2O

Ventilation Features

AVAPS, Automated Airway Management, ExpiraFlow

Ventilation modes


Breath Rate

0 to 40 BPM (S/T and PC mode), 4 to 40 BPM (T mode)

Low Flow O2

15 L/min at a maximum pressure of 10 psi

Trigger Type

Auto-Trak, Sensitive Auto-Trak, Flow Trigger

Inspiratory Time

0.5 to 3 seconds

Settable Alarms

Circuit Disconnect, Apnea, Low Vt (AVAPS), Low Minute Ventilation, High Respiratory Rate, Low SPO2


Integrated SystemOne: Heated or Heated Tube

Noise Level

30 dBA at 10 cmH2O


Pressure, tidal volume, minute ventilation, respiratory rate, Leak, I/E ratio

Relative Humidity

15 to 95% (non-condensing)

Atmospheric Pressure

101 kPa to 77 kPa (approximately 0-2286 m/0-7500 ft)

Target tidal volume

200 – 1500 ml

Operating Temperature

5° C to 35° C (41° F to 95° F)

Storage Temparature

-20° C to 60° C (-4° F to 140° F)


110v, 220v

Rise time

1 (100 ms) – 6 (600 ms)

AVAPS rate

0.5 to 5 cmH2O/min


4 – 30 cm H₂O

Target tidal volume (when AVAPS enabled)

200 – 1500 ml

Triggering and cycling

Digital Auto-TRAK algorithm

Polygraph and polysomnography connections

Direct connection to Alice PDx and Alice6 PSGs, AOM to connect to most PSG systems

Battery back-up

11 hours at IPAP 15 / EPAP 4 cm H2O and 12 BPM


4 – 25 cm H₂O

DC power source

12 VDC, 5.0 A (external battery), 24 VDC, 4.2 A (power supply)

Remote control

Compatible with PC Direct

Product Code


Documentation for Respironics A40 BiPAP


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