noun
air purifier; air filter
Refers to a device that removes dust, pollen, odors, or other particles from the air, commonly used in homes and offices.
花粉症の季節には空気浄化機が欠かせない。
An air purifier is indispensable during hay fever season.
この空気浄化機はフィルターの交換が簡単だ。
This air purifier makes it easy to replace the filter.
More common synonym for 'air purifier'; 空気浄化機 is a less frequent variant with the same meaning.
Compound of 空気 (air) + 浄化 (purification) + 機 (machine). The exact derivation is straightforward; the word is a modern technical term.