Face mask for filtering air and air monitoring system
US11241594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2017 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Aug 13, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2202/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A face mask for filtering air includes a face seal for providing an airtight flexible seal around the nose and mouth of a user, a support sealably attached to the face seal, wherein the support has an open area that allows for passage of incoming air and outlet valves for expelling exhaled air, a front shell for removably attaching to the support, wherein the front shell has inlet holes for allowing the incoming air to pass through the open area of the support, and a filter for filtering particulate elements from air. The filter is configured to be housed between the front shell and the support. The face seal provides a direct connection between the filter and the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.