Due to the long sailing time of ocean-going fishing vessels, the cabin is relatively closed, the ventilation is poor, and the air environment quality in the cabin, especially in the living area, is poor. Often mixed with oil smell, body odor sweat smell, fish cargo odor, paint smell and cabin decoration materials issued by the types of harmful gases such as formaldehyde, TVOC, etc. For example, Hengxin 7 ocean-going fishing boats operate in the southwest Atlantic and southeast Pacific all year round. Affected by climate and environment, air management needs are urgent.