FIELD: items for personal use.
SUBSTANCE: body of the respiratory mask forming the first chamber and the second chamber is provided. In one embodiment, the mask body comprises one or more inlet ports configured to receive one or more components in the form of respiratory air sources communicating with the first chamber and allowing movement of the withdrawn fluid.
EFFECT: component allows air to be transferred from the first chamber to the second chamber during inhalation.
18 cl, 6 dwg
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