The warm air device blows heated air through its applicator tip along the scalp and hair shafts at a higher flow (but cooler temperature) than a hair dryer.


  • Step 1

    The person receiving the treatment must have dry, untangled hair that can be easily combed and is free of hair products and scalp-treatment products.

  • Step 2

    During the course of a 30-minute treatment, the trained device technician will gently place the device’s applicator tip under the hair and against the head, moving its position every 30 seconds until the entire head has been treated.

  • Step 3

    The purpose of the warm air device is to kill the lice and eggs through dehydration. Dead lice and dead eggs will remain in the hair after treatment. Device technicians will do a post-treatment comb-out (which usually takes 60 minutes) with a good quality lice comb to remove the dead lice and eggs.

  • Step 4

    Most technicians will then apply a post-treatment rinse using dimethicone oil to kill any remaining lice.