Ventilation: Crucial in many places. For example, in a typical residential home, cooking in the kitchen produces a lot of oil fumes, and the bathroom can have unpleasant odors. An exhaust fan installed in the kitchen is a simple form of ventilation fan; it quickly removes the oil fumes outdoors, keeping the indoor air fresh and preventing cooks from being enveloped in fumes for extended periods. Bathroom ventilation fans promptly remove odors, preventing the pervasive smells and creating a comfortable living environment.
Air Conditioning in Industrial Sites: Factories and workshops generate various dusts and harmful gases. For example, in coal mining workshops, large amounts of coal dust are generated. Continuous operation of ventilation fans promptly removes the coal dust, preventing excessive dust concentrations that could lead to explosions, while also providing workers with relatively safe breathing air. In chemical production workshops, harmful gases such as sulfur dioxide are produced. Ventilation fans continuously bring in fresh air and remove harmful gases, protecting worker health and maintaining a normal production environment.
Construction Ventilation: Construction sites are relatively enclosed and complex spaces. During the construction of underground parking lots, construction machinery generates harmful gases such as carbon monoxide. Ventilation fans, through a duct system, continuously deliver fresh air to the construction area, dispersing these harmful gases, creating a safe working environment for construction workers, ensuring smooth construction progress, and preventing accidents such as poisoning due to the accumulation of harmful gases.
Ventilation in commercial venues: Large shopping malls have dense crowds, and customers and employees exhale a significant amount of carbon dioxide and other waste gases. Ventilation fans, through a rationally laid-out duct system, expel stale indoor air while introducing fresh outdoor air, ensuring air circulation and freshness within the mall. This allows customers to shop in a comfortable environment and also improves employee work efficiency. The same applies to cinemas; during movie screenings, crowds are concentrated, and ventilation fans promptly regulate the air to provide viewers with a good viewing experience.

