Pubic place 
Ningxia Yongruida series of activated carbon is applicable to purify the air in theatre, library, cinema, commerial buildings and other crowded plcaes.

Family indoor 
Ningxia Yongruida series of activated carbon is mainly used to remove the unpleasant gas in new houses, such as formaldehyde, benzene series, TOVC, ammonia, radon and other poisonous and harmful gases. Moreover, it performs well in wardrode ,bookcase, shoe cabinet, and bathroom.

Personal protection 
Ningxia Yongruida series of activated carbob is applied to air filters, masks ,cigarette filter,etc.