介紹:
smog 霧霾
mask 口罩、面膜
A mask is an object normally worn on the face, typically for protection, disguise(偽裝), performance, or entertainment.
gas mask 防毒面
oxygen mask 氧氣面罩
air purifier /ˈpjʊrɪfaɪər/ 空氣凈化器
An air purifier is a device which removes pollution from the air in a room.
fire extinguisher 滅火器 /ɪkˈstɪŋɡwɪʃər/