国家/地区 中国（4）
IPC部 B（4）
IPC大类 B01（4） F24（4）
IPC小类 B01D（4）
IPC F24F008/108（4）
发明人
公开年 2021（4）
申请年 2020（3） 
专利权人

Nano fiber film air purifier filter screen has rotating shafts that are located at same vertical position and distance is same as length of pre-filtering screen.

YANG Y, DU L, LI X

Air purifying filter core comprises orderly laminated dust filtering layer, nano-silver ion antibacterial net, graphene filter layer and graphene modified active carbon filter layer, where graphene filter layer comprises graphene coating.

ZHANG H, CAI H, XIE Z, PAN D, ZHANG Y

Activated carbon composite filter screen comprises front plate, back plate, frame structure layer and filter core, where four corners of one side of front plate are fixedly provided with mounting sleeve.

YU X, GAO F, ZHANG J

Household graphene heating electric heater, has air guide box whose outer side wall is fixedly connected with multiple air outlet pipes, and graphene electric heater main body whose outer side wall is provided with multiple guide holes.

YAN H