2-chamber filtering half mask

The 2-chamber filtering half-mask design with a silicone membrane separates inhalation and exhalation paths, addressing discomfort and virus re-inhalation issues in masks, enhancing user comfort and safety.

DE202026000484U1Active Publication Date: 2026-04-09CONCEPT CONSULTING GMBH
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2026-02-03
Publication Date
2026-04-09

AI Technical Summary

Technical Problem

Existing masks, such as FFP, KN, and OP masks, suffer from discomfort and potential virus re-inhalation due to exhaled air mixing with inhaled air, leading to fatigue and contamination.

Method used

A 2-chamber filtering half-mask design with a silicone membrane dividing the mask into two chambers, allowing inhalation through the upper chamber and exhalation through the lower chamber, preventing air mixing and reducing eyeglass fogging.

Benefits of technology

The 2-chamber design provides comfort and reduces the risk of virus re-inhalation by separating inhalation and exhalation paths, alleviating fatigue and preventing eyeglass fogging.

✦ Generated by Eureka AI based on patent content.

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Abstract

A two-chamber filtering half mask (FFP 1, 2, or 3 or KN, N or OP) hereinafter referred to as a "two-chamber mask(1)", characterized in that an "airtight partition", hereinafter referred to as a "membrane(1)", divides the cavity of the mask into two chambers. The upper chamber is for inhalation through the nose and the lower chamber is for exhalation through the mouth, in order to prevent the mixing of exhaled air with fresh air.
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Description

2-chamber filtering half mask

[0001] FFP, KN, N, or OP masks, or similar, are designed so that the mouth and nose are located in a cavity or chamber. This chamber or cavity fits snugly against the face at the edges. Air is inhaled and exhaled through the mask material, with some of the exhaled air always remaining in the mask's cavity.

[0002] People who have to wear a mask for extended periods often complain of fatigue and discomfort, resulting from the fact that some exhaled air is always being "re-inhaled." If the "exhaled" air is contaminated with viruses, then these viruses are inhaled again when "inhaling."

[0003] The invention's claim solves the problem of exhaled air mixing with inhaled air. In the "2-chamber filtering half-mask," also called "2-chamber mask(1)," a "membrane(1)" divides the mask into two chambers.

[0004] The membrane, made of silicone (or similar material), is triangular in shape with two short sides and one long side. The short sides are glued or welded to the sides of the mask. The long side is curved inwards and rests against the face between the upper lip and nose. The membrane (1) provides stability to the mask, preventing it from imploding during strong inhalations. The membrane (1) also has a notch in the middle, allowing the mask (1) to be folded with the membrane (1).

[0005] "Inhaling" through the nose occurs through the upper chamber and "exhaling" through the mouth into the lower chamber.

[0006] Exhaling used air through the mouth also prevents eyeglasses from fogging up.

[0007] An embodiment of the invention is shown in the drawing (1) using an FFP2 mask. Reference symbol list 1 2 Chamber Mask