Provox HME Cassette Adaptors by Atos Medical

A heat and moisture exchanger (HME) works as an artificial nose - it helps to heat and moisturize inhaled air. It retains humidity in the airways that would otherwise be lost by breathing through an open tracheostoma. As a result many users experience fewer problems with coughing and mucus production. This improves voicing, sleeping - and the quality of life.