Valve system for medical grade mouth mask

A valve system for a mouth mask is disclosed. The valve system comprises a first rigid member and a second rigid member, having at least partially mated surfaces to closely fit to one another, a flexible member and a tightening means. The first rigid member and the second rigid member, the flexible member and the tightening means are configured so that the flexible member can be positioned between the first rigid member and the second rigid member so that the flexible member, when the tightening means is in position, is centrally tightened between the first rigid member and the second rigid member while perimetral edges of the flexible member are loose, so that the flexible member allows air flow through the valve system in a first direction from the first rigid member to the second rigid member caused by breathing out when the mouth mask is in position and prevents air flow through the valve system in a second direction from the second rigid member to the first rigid member towards the user when breathing in.

Patent Publication Number: WO2021186036

Year filing: 2021

Year approval: 2022

Year publication: 2021

Status: Requested

Technology domains: undefined

Validated for IOF-key: Yes

Attributed to: Associatie Universiteit & Hogescholen Antwerpen