filter + device that removes unwanted substances from a liquid or gas ☊ filter ☊ 
bình lọc ☊ filter ☊ chắt lọc ☊ filter ☊ phích nước ☊ filter + device that removes unwanted substances from a liquid or gas ☊ filter ☊ bình lọc ☊ filter ☊ chắt lọc ☊ filter ☊ phích nước ☊