Filters

A HMEF and HEPA filter should be inserted for each patient to avoid cross-contamination and to ensure maximal safety for the healthcare workers.

Add a HMEF filter close to the patient, and HEPA filter close to the one-way valve on each expiratory circuit. 

HMEF filters become moist over time, and their effectiveness deteriorates. To make sure the healthcare workers are protected at all times, an extra HEPA filter is needed.

Example image of HMEF filter inserted proximally to test lung (center, blue). Image by Dr. Mergeay.

The International Workgroup on Differential Multiventilation

Disclaimer

None of the contributors, or any other person connected with this international working group, can be held responsible for the information provided on these webpages. The content provided on this website might be incomplete or incorrect. The use of the described methods or any other reliance on the information provided by us is solely on your own risk.