Lijan Greentech is manufacturer of Turbo Roof Ventilator. Turbo Roof Ventilators are used to Expel Hot, Humid, Dusty Air or Gases from Inside Building Space. Ventilator Fan Rotates Continuously in the Wind. Forced Ventilation due to Rotation of Fan Ensure Fresh Air Intake into Rooms and Inside Building Space. There will be Reduction in Temperature inside Building since Hot Air is Continuously Exhausted. Ventilator Fans can be used to Exhaust Kitchen Smoke, Chemical Gases, Dust etc. Ventilation can be done with Ducting also by Fixing Roof Ventilator Fan at end of Duct. Turbo Roof Ventilator Fans are Effective in Regions having Light Wind or Breeze. Fans Supplied by Lijan Greentech are Very Good Quality and Run for Many Years Without any Maintenance. Mostly Fan Base is Fabricated in GI sheet and Supplied Powder Coated which will last for years.