国家/地区
IPC部 C（2）
IPC大类 C09（2）
IPC小类 C09D（2）
IPC C09D193/00（2）
发明人
公开年 2021（2）
申请年 2020（2）
专利权人

Multipurpose mask useful to protect eyes and lungs from viruses by removing flu virus and ultrafine dust to treat e.g. skin comprises space provided in nonwoven filter and transparent film installed between nonwoven fabric filter.

OM J P, HO E Y

Wall coat with formaldehyde removing function comprises e.g. zinc oxide nanorod array and three-dimensional nitrogen-doped hollow redox graphene compound, titanium dioxide, heavy calcium, diatomaceous earth, flatting agent and wetting agent.

FENG G, LIU H