Windcatcher Natural Ventilation Systems from VIM Sustainability Consulting

If you need to specify sustainable alternatives to air conditioning
Windcatchers will blow you away

Windcatcher natural ventilation systems harness thepower of the wind to introduce fresh air into a building,and the natural buoyancy of thermal forces to expel staleair to atmosphere. Once installed there are no runningcosts for the life of the building.

That's Windcatcher - the natural alternative to airconditioning. It's also a breeze to install and won't wearout, break down, corrode or need to be replaced.