Huff Technique

To move mucus from small airways, it is more effective to start huffing with a small breath in and long breath out, progressing to larger breaths as mucus moves

  • Take a small breath in
  • Open the mouth to an O shape and place breathing tube in the mouth, between the teeth
  • Seal lips around tube
  • Breathe out with some force (not a lot of force) and good flow
  • The breath out is similar to fogging up a mirror – use a tissue in front of the mouth to check technique (tissue curtain)
  • Increase to mid and large breath huffs when mucus moves closer to the mouth
  • Perform 1-2 coughs when the mucus is ready to be cleared