noun, noun or participle which takes 'suru'
air bath; open-air bathing
Refers to bathing or relaxing while exposed to fresh outdoor air, often in a spa or natural setting. Can be used as a noun or with する to mean 'take an air bath'.
露天風呂で外気浴を楽しんだ。
I enjoyed an air bath in the open-air hot spring.
朝の森で外気浴すると気持
Taking an air bath in the morning forest feels great.