国家/地区 加拿大（3）
IPC部 A（3）
IPC大类 B01（3） A41（2） A62（2）
IPC小类 B01D（3）
IPC A41D013/11（2） A62B023/02（2） B01D046/00（2）
发明人
公开年 2021（3）
申请年 2021（3）
专利权人

Air purifying device for separating materials from air flow, has collector plates arranged downstream of set of ionization needles, where device generates ionization corona discharge by positive ionization voltage led to needles.

TULKKI J, JUHANI T, SKOGSTER N, MAKKONEN P

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

Electrospun polymer nanofibrous membrane having high filtration efficiency comprises polyvinylidene fluoride, Tecophilic thermoplastic polyurethanes, or blend of polyvinylidene fluoride and Tecophilic thermoplastic polyurethanes.

SOLIMAN S, GUO F