FOLDABLE RESPIRATORY FACE MASK WITH EXHALATION VALVE Russian patent published in 2019 - IPC A41D13/11

Abstract RU 2697606 C1

FIELD: medicine.

SUBSTANCE: respiratory mask comprises a dividing line dividing the mask base into a first portion and a second portion. Respiratory mask also includes an exhalation valve located on the dividing line in the central area of the mask base so that the exhalation valve is located in fact opposite to the user's mouth when using the mask. Separating line has a gap at the valve location.

EFFECT: collapsible filtering face respiratory mask is disclosed.

25 cl, 15 dwg

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RU 2 697 606 C1

Authors

Duffy, Dean R.

Duffi Din R.

Dates

2019-08-15—Published

2016-09-28—Filed