Characteristics ：

• Natural vent: ventilation is realized by natural airflow, which is stable and reliable, with low cost, and is suitable for places with low ventilation requirements.

• Power vent: mechanical power is used to achieve ventilation, with good ventilation effect and large output air volume, which is suitable for closed places.

• Waterproof and wave-proof vent: It has waterproof, windproof and wave-proof capabilities, and is suitable for ship operation to avoid external environmental damage.

• Explosion-proof vent: it has explosion-proof performance and is suitable for places where inflammable and explosive dangerous gases exist.

• Condensation vent: it is suitable for high temperature and high humidity environment, which can effectively reduce humidity and protect the safety of internal facilities and goods.

• Roof vent: installed at the top of the cabin, with good ventilation effect and convenient maintenance.

• Bilge vent: installed at the bottom of the cabin, suitable for goods storage places such as storage room and bilge storage tank.

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