Moisture heat exchange device for air used for breathing, comprises mesh casing with foam insert for attaching to speech valve

摘要

A mesh casing (1) acting as a cartridge contains a profiled foam insert (3) beneath a slotted or non-slotted cover (2). The foam insert is designed to be combined with a speech valve. A semi-circular groove in the casing allows the speech valve to be releasably attached to the moisture-heat exchange device.