There are two main types of thin natural vent in the national standard atlas 11CJ33 "Daylighting Natural Ventilator", namely MCW1 roof louver vent and MCW2 labyrinth industrial ventilator. Among them, MCW1 roof louver vent is made by Mcwell Patented research and development products. In the production and installation of this type of thin natural vent, Mcwell, which has more than ten years of rich experience, is undoubtedly the industry's top product and has become the main reference brand for many customers to choose roof ventilation equipment.

The skeleton of the thin natural vent is formed by pressing different profiles and can be combined in modular units to meet the size requirements of different customers. The height of the Mcwell's roof louver vent is low, generally within 630mm. Its characteristics are mainly light weight, small load on the roof, and good wind resistance.

On the other hand, compared with some large-scale high-capacity ventilation skylights, thin smoke vent skylights consume relatively less structural steel, which can reduce the total investment. It is a common choice for ventilation skylights in industrial factories.

Thin natural ventilator can be installed on the roof ridge and downhill. It can be designed according to the actual needs of ventilation and lighting. It can be designed as daylighting type and thermal insulation type ventilation skylight according to the different materials of the rainproof board. According to whether the opening and closing valve plate is selected, it can be designed as an open-close type (openable) or open-type ventilation skylight. Ventilation skylight valve plate can be designed as manual, electric, smoke, temperature and other control methods according to needs.

Mcwell's daylighting natural ventilator can be installed on slopes and ridges, and open and close valve plates can be installed. The thin roof skylight adopts modular unit combination, which can be conveniently and continuously installed in the length of the opening, and can be installed in multiple rows side by side. It is the most commonly used form of ventilation and heat dissipation in industrial plants.