Embodiments relate generally to the design of a partially reusable dust mask comprising a reusable mask frame and a replaceable filter. The reusable mask frame comprises a groove around its edge, and the replaceable filter comprises an elastic portion operable to fit into the groove of the mask frame to hold the filter to the frame.
申请公布号
WO2015172315(A1)
申请公布日期
2015.11.19
申请号
WO2014CN77383
申请日期
2014.05.13
申请人
HONEYWELL INTERNATIONAL INC.;ZHANG, JIANXIONG;JIN, ZHAO XIA;ZHU, JIE;QIN, NING;LI, OLIVER
发明人
ZHANG, JIANXIONG;JIN, ZHAO XIA;ZHU, JIE;QIN, NING;LI, OLIVER