Abstract
A complete breath filter mainly includes a cannula component, and two bodies with mirror-symmetrical contours and separately connected to the two ends of the cannula component. The bodies include a first air chamber in communication with the cannula component, a second air chamber for filtering in ambient air, and a diaphragm installed between the two air chambers and controlled for its open/closure status by the breathing operation of a user. Thus, the invented filter has the properties of complete air filtration, assisting smooth breathing for a user, light and comfortable in use.
| Translated title of the contribution | Complete breath filter |
|---|---|
| Original language | Chinese (Traditional) |
| Patent number | I257314 |
| IPC | A62B 9/02(2006.01) |
| State | Published - 01 07 2006 |
Bibliographical note
公開公告號: I257314Announcement ID: I257314