Nasal Mask

摘要

A nasal mask contains: a body including a flexible supporting portion, a holding portion, and an filter accommodating hole. The filter accommodating hole communicates with the body, the flexible supporting portion has a rear segment for abutting against an inner side of the user's nostril, and the holding portion is biased against an outer side of the user's nostril. A fastening cover rotatably is connected with the holding portion and includes a plurality of air orifices communicating with the filter accommodating hole. A three-dimensional filter is fixed in and is removed from the body, the three-dimensional filter includes a twisted filtration fence and an extending flange, and the twisted filtration fence has plural curved sections for filtering air in the three-dimensional filter, the extending flange extends outwardly from a bottom end of the three-dimensional filter and is retained between the holding portion and the fastening cover.

主权项

1. A nasal mask being fixed in user's nostril and comprising: a body which includes a flexible supporting portion, a holding portion, and an filter accommodating hole, wherein the filter accommodating hole communicates with the body, the flexible supporting portion has a rear segment for abutting against an inner side of the user's nostril, and the holding portion is biased against an outer side of the user's nostril; a fastening cover rotatably connected with a bottom end of the holding portion and including a plurality of air orifices communicating with the filter accommodating hole; a three-dimensional filter fixed in and removed from the body, the three-dimensional filter including a twisted filtration fence and an extending flange, and the twisted filtration fence having plural curved sections for filtering air in the three-dimensional filter, the extending flange extending outwardly from an outer side of a bottom end of the three-dimensional filter and being retained between the holding portion and the fastening cover.