Hagihara Industries' antimold and antibacterial filter consists of a woven or knit fabric with antimold and antibacterial agents. The warp or filling yarns are made of thermoplastic resins that incorporate each agent. The filter thermoplastic resins that incorporate each agent. The filter is 2-3 millimeters thick. Suitable thermoplastic resins include polyolefin, polyester, nylon, polyacrylic, polystyrene, and polyvinyl chloride. The polyolefin resin is made of polypropylene, high density polyethylene, medium density polyethylene, low density polyethylene, straight chain low density polyethylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, or ethylene-acrylic ester copolymer. The organic antimold agent can be Vinyzene or Preventol. The inorganic antibacterial agent can be silver nitrate, silver sulfate, silver chloride, zeolite, or silica gel. The filter bears United States patent number 6,165,243.