There are many different manufacturers to produce differnet natural ventilators. As a professional smoke vent manufacturer, Mcwell only supply high quality products to clients.

Mcwell was established in February 2004. It has two production bases in Wenjiang District and Jintang, Chengdu. At present, the company's products include smoke vent skylights, natural ventilator, etc.

The roof vents produced by Mcwell have reasonable structural layout, smooth air flow, and outstanding advantages of low exhaust resistance. They are natural ventilation equipment with good performance. The rain-shielding board layout of the roof smoke vent is reasonable, which not only has reliable measures to prevent rain and snow infiltration, but also has a good wind shelter function, which can effectively prevent outdoor air backflow and ensure the normal use of the roof ventilator under any

weather conditions. The natural ventilator body is firm, safe and reliable, can withstand the local wind load and snow load, and does not affect the normal use of the roof ventilator, and at the same time meets the relevant regulations for earthquake resistance. The valve plate is opened in summer and plays a role of diversion to ensure good ventilation; it is closed tightly in winter, and the air leakage is less than 0.3% of the fully open state in summer. Ensure that indoor insulation measures are taken

in winter to prevent fogging. The valve plate adopts an electric (motor explosion-proof) opening slash/closing mechanism, which is flexible to open, tightly closed, simple to operate, easy to install, and easy to maintain. The outer surface of the installed roof ventilator does not exceed the scope of the lightning protection device of the building. The electric operating mechanism and other hardware accessories are all manufactured by professional factories.