呼吸器呼吸器具  breathing apparatus

电子空气净化器  electronic air cleaner

个人空气净化器  personal airpurifier

净气器空气选净器  air washer

静电空气净化器  electrostatic air cleaner

空气呼吸器  air respiratorresuscitator

空气净化器  air purification instrument; Air cleaning cartridge; air cleaner; air purifier; depurator; air-cleaner; Air purification equipment; Air decontaminator; air filter; air regeneration device

微型空气净化器  subminiature air cleaner

液态空气呼吸器  liquid air breathing apparatus

油型空气净化器  oil-type air cleaner

正压空气呼吸器  positive pressure self -contained open -circuit compressed air breathing apparatus

吸气器气吸管道  aspirator

纯净器净化器  purifier

净化器净化剂  purifier

呼吸器呼吸装置  breathing apparatus

10万级空气净化  one-million-level dust-free

1955年空气净化法  Clean Air Act of 1955

1967年空气净化法  Clean Air Act of 1967

1970年空气净化法  Clean Air Act of 1970