Removes stale, damp and hot air AirExit extracts hot and stale air from buildings by creating a conversion current and draws unwanted air, heat, humidity, fumes, odours, dust, smoke and many more invisible irritants from the covered area upwards, allowing fresh air at ambient temperature. Increases productivity AirExit removes hot air from building, a new cool air will replace. This provides a safe, cool, healthier and more controlled work environment, ensuring health of workers, thus contributing to an increase in workers productivity, and it results in more profit. Saves the electrical energy AirExit operates by utilizing the slight energy of the wind, so it saves power cost. Even if installed in air-conditioned building, the hot air which accumalates above falls ceiling will be removed. However, thus it reduces the load of air condition. Prolongs life of Machines AirExit can even extract humidity in the air out of the building, which results in machine and other electrical systems work at their fullest efficiency and prolongs their life time. We TwinPro provide services right form the supply, installation and commissioning. We care Quality product, proper analysis and installation process to ensure 100% effective performance. Available sizes : 14, 16, 18 and 24 inches