发明名称 |
Unobtrusive personal air filtration device |
摘要 |
A personal air-filtration device directing filtered air at the face without the use of a mask or a mouthpiece is described. The inventive device provides filtered air to the user without obstructing the user's mouth, thus allowing the user to talk and consume food and/or water while in operation.
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申请公布号 |
US7543585(B2) |
申请公布日期 |
2009.06.09 |
申请号 |
US20060546960 |
申请日期 |
2006.10.13 |
申请人 |
TORGERSON GARRETT DOUGLAS |
发明人 |
TORGERSON GARRETT DOUGLAS |
分类号 |
A62B18/08 |
主分类号 |
A62B18/08 |
代理机构 |
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代理人 |
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