Ningbo Troika Science & Technology Company Limited

Wengao Liu

A facial covering in the form of a mask for covering the nose and mouth of a user is provided. The mask is flexible and includes side edges. The mask defines a pair of channels on opposing side edges. An adjustable strap extends through the channels. An upper portion of the strap extends between the upper ends of the channels and a lower portion of the strap extends between the lower ends of the channels. The strap is shiftable relative to the channels, such that adjustment of the length of the upper portion adjusts the length of the lower portion. A clip mechanism may be disposed on the upper and/or lower portion to set the effective length of the strap. Bendable nose, chin, and/or cheek strips may be disposed along the side edges. The channels may be reinforced.

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Ningbo, China

Wengao Liu