also: ぼうかびざい
anti-mold agent; mildew-proofing agent
A substance used to prevent mold or mildew growth, often in building materials, paints, or household products.
This paint contains an anti-mold agent.
I used a mildew-proofing agent to prevent mold in the bathroom.
カビ means 'mold' or 'mildew'; 防カビ剤 is the agent that prevents it.
Standard modern spelling using katakana for カビ.
Formal or older spelling using the kanji 黴. Also read ぼうばいざい.
Compound of 防 (ぼう, 'prevent') + カビ ('mold') + 剤 (ざい, 'agent').