noun
dehumidifying agent; moisture absorber
Refers to a product or substance used to reduce humidity, such as desiccant packs, moisture-absorbing sheets, or chemical dehumidifiers.
クローゼットに除湿剤を置いてカビを防ぐ。
I put a dehumidifying agent in the closet to prevent mold.
Compound of 除湿 (dehumidification) + 剤 (agent, preparation).