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Acapella and Aerobika (Oscillating PEP)

What is an Acapella and Aerobika (Oscillating PEP)

Acapella / aerobika is a small hand-held device that helps move mucus out of the lungs. Keeping mucus out of your child's lungs will:

  • Improve his or her health
  • Keep him or her from getting sick

Using acapella / aerobika correctly is very important. It should be used with Huff Coughs during treatment.

How does an Acapella / Aerobika Work?

Vibrations help to loosen and dislodge mucus. Positive expiratory pressure, or PEP, helps air to get around and behind trapped mucus. PEP also helps to “splint” the airways open. This allows the airflow to move the mucus up to the large airways where it can be huffed or coughed out.

What Are The Instructions to Use an Acapella / Aerobika?

Have your child:

  1. Sit up straight in a chair.
  2. Rest elbows on a table.
  3. Take slightly deeper breaths than normal for one to two minutes.
  4. Put the mouthpiece lightly in his or her mouth. Make sure there is a tight seal around the mouthpiece.
  5. Breathe in slowly, taking a larger than normal breath.
  6. Hold his or her breath for two to three seconds.
  7. Breathe out through the device longer and a little faster than normal.
  8. Repeat this 15 times. Keep the mouthpiece in for all 15 breaths.
  9. Do two to three Huff Coughs.
  10. Cough to get rid of mucus.

Repeat the entire process for 6 cycles or a maximum of 30 minutes.

How Do You Clean an Acapella / Aerobika?

After each use:

  • Open the acapella / aerobika
  • Allow the acapella / aerobika to air dry on a clean paper towel

Every day:

  • Disassemble and clean with liquid dish soap, followed with a sterile water rinse


  • The Cystic Fibrosis Foundation recommends disinfecting your acapella by using an alcohol bath for 5 minutes or placing on top rack of the dishwasher. Aerobikas can be sterilized by boiling for five minutes, dishwasher, bottle sterilizer, or alcohol bath for five minutes.
  • Inspect your acapella / aerobika to ensure proper function.

Last Updated 12/2021

Reviewed By Carolina Sprinkle, RRT

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