Patent attributes
A retractable respiratory mask of the present invention comprise a worn portion, a filter portion adapted to connect with a filter member, and a retractable portion; the retractable portion connected between the worn portion and the filter portion comprises a first bend portion, a second bend portion and a displacement section. The two bend portions are spaced apart from each other and the displacement section is connected between the two bend portions. The retractable respiratory mask of the present invention can change the relative position between the two bend portions by folding over the displacement section. The retractable respiratory mask shows an extended shape when the first bend portion and the second bend portion are orderly arranged in an extending direction, and conversely shows a contracted shape when two bend portions are arranged along the opposite direction. By doing so, the mask can be folded up to reduce entire volume.
