greenhousestuff.com > accessories > environmental control > fans > 12" air circulation fan

This greenhouse fan is built with large air holes, providing double the air circulation of most household fans. The fan motor is maintenance-free and highly energy efficient. The noise levels are well below OSHA requirements. Fans can be ceiling mounted, ceiling suspended or wall mounted. It improves comfort by enhancing the normal cooling process. This greenhouse fan provides an energy design for low cost operation.