Bi-Level Positive Airway Pressure (BPAP)

314-205-8600 or 888-BJC-HOME

Your doctor has prescribed Bi-Level Positive Airway Pressure (BPAP) therapy for you. BPAP is defined as two different levels of pressure delivered to the airway. A higher level of pressure is delivered when you breath in and a lower level of pressure when you breath out, making the therapy more tolerable to your individual needs.

This pressure prevents your airway from closing. BPAP is used to treat Obstructive Sleep Apnea (OSA), a condition that causes the upper airway tissue to block air flow to the lungs. This can cause your oxygen levels to drop dangerously low. This happens primarily at night when you sleep but can occur while you nap. Use your BPAP anytime you plan to sleep.

The BPAP machine delivers a prescribed pressure through the tubing to the mask or nasal pillows. BPAP machines (delivery devices) and masks/pillows (interfaces) come in various sizes and types. Your doctor may prescribe a particular machine and mask at the time of the initial setup. We carry a wide variety of masks and pillows which our staff will show you and professionally fit.

It will take some time to get accustomed to your equipment and it may take a while before you begin to feel the benefits of your BPAP therapy. Be patient!! If you are having any problems adjusting to your equipment contact BJC Home Medical Equipment at 314-953-2000 for help.

Home Setup

  1. Place the BPAP machine on a level surface near your bed.
  2. Keep the machine at least 12 inches away from anything that may block the vents (drapes, bedspreads, etc.)
  3. Position the machine lower than the level of your bed so any accumulation of water will drain towards the machine and not towards your mask.
  4. Plug the machine into a grounded outlet, if available. The use of extension cords is not recommended. If necessary use a heavy-duty extension cord. 

Note: If oxygen is prescribed with your BPAP therapy, our therapists will instruct you on the proper placement of the oxygen adaptor and oxygen tubing. Always turn on the BPAP unit first, then turn on the oxygen.


  1. Fill the humidifier with water (distilled water is recommended) to the maximum fill line.
  2. Attach one end of the tubing to the humidifier.
  3. Attach the other end to the mask.
  4. Rinse/clean with mild soap and water daily.
  5. Always turn your CPAP unit off when it’s not in use.
  6. Do weekly cleaning and disinfecting. Soak the water reservoir in one part white vinegar and three parts water for 30 minutes and rinse thoroughly.


  1. Plug the BPAP power cord into a grounded outlet, if available. The use of extension cords is not recommended. If necessary use a heavy duty extension cord.
  2. Wash your face to remove any dirt, oils or creams.
  3. Turn the unit on. As you feel the pressure increase, relax and breathe normally through your nose.
  4. Always turn your BPAP unit off when it’s not in use.
  5. If you use oxygen, always turn off the oxygen first, then turn off the BPAP unit.

Note: It is important to keep your BPAP equipment and supplies clean. Please refer to the user’s manuals for recommended cleaning instructions. Replacing your supplies on a regular basis can ensure that you receive the greatest benefit from your therapy. To replace your supplies, please contact us at 314-953-2000.

Important Safety Reminders

  1. Use your BPAP equipment as directed by your physician.
  2. Do not try to adjust your pressure settings.
  3. Do not plug the BPAP unit into an outlet with multiple devices.
  4. Keep filters clean to prevent the unit from overheating. Check filter weekly for debris and clean/dust as needed.
  5. If oxygen is being used, follow the oxygen guidelines.
  6. When using the heated humidifier, allow the unit to cool before cleaning and/or refilling.
  7. If you have a medical emergency, contact you physician or dial 911 for immediate assistance.

Care and Maintenance of Mask/Nasal Pillow

  1. Using mild/non-antibacterial soap and warm water, gently clean mask/pillows daily.
  2. If your mask has an inner lining, this usually does not require cleaning. Just wipe with a damp cloth.

Suggested Replacement Schedule

It is very important to keep your equipment and supplies clean. Please refer to the manufacturer’s suggested guidelines for cleaning instructions.


Replacement Allowed by Insurance

Water chamber for humidifier, replacement only 1 per 6 months
Disposable filters 2 per 1 month
Non-disposable filters 1 per 6 months
Headgear 1 per 6 months
Nasal (mask/cannula) 1 per 3 months
Pillow/Cushions for use on nasal mask 2 per 1 month
Chin strap 1 per 6 months
Nasal pillow mask 1 per 3 months
Full face mask 1 per 3 months
Interface/seal 1 per 1 month
Tubing heated or non heated 1 per 3 months

When new supplies or replacements are needed, please call BJC Home Medical Equipment at least a week in advance and we will have our supplies shipped directly to your home. Your insurance provider may reimburse you for the cost of your supplies. Co-pays and replacement frequency of items may vary based upon insurance carrier and coverage provided under your insurance plan.

Troubleshooting Guide

If you have problems with your equipment, please refer to the following:


Possible Cause

What to do

No pressure / flow
  • Power cord disconnected
  • No power to outlet
  • Power switch in the OFF position
  • Blown fuse / circuit breaker on residence’s box
  • Reconnect power cord from machine and outlet
  • Try another outlet. Check to see if it is controlled by a light switch
  • Turn power switch on
  • Replace fuse or check circuit in breaker
Air from machine is too hot or cold
  • Dirty filters
  • Blocked vents
  • Temperature level on CPAP humidifier is too high/low
  • Clean or replace filters
  • Remove obstructions
  • Adjust humidifier on CPAP
Air leak around mask/interface
  • Mask not fitting correctly
  • Re-adjust mask and headgear. Contact us if problem persist.