Helsa-werke Helmut Sandler Gmbh & Co. Kg

Anna-Maria Weiss

Klaus Smolik

A multi-layer protective breathing mask adapted to cover the mouth and the nose of a wearer thereof comprises an outer layer, an inner layer and, between the outer and inner layers, a filter element comprising a particle filter and an adsorber filter. The adsorber filter may comprise one or more layers of foam material and the layers of foam material may be of different porosities. The at least one layer of foam material adsorber particles which may preferably be of a plurality of particle sizes.

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Wunsiedel, Germany

Anna-Maria Weiss