Kimberly-Clark Kimvent Heat and Moisture Exchanger (1500). Device humidifies and helps reduce the transfer of bacteria and viruses between patient and practitioner. Can also be used in respiratory and anesthesia for patients with a tracheostomy tube. Also helps reduce the need for expensive, heated humidification systems. rovide filtration of circuits for ventilator patients. For single patient use. Also available in a case of 41.CPAP America is your one-stop-shop for all of your sleep apnea needs!