Saving "Small Cooling Fan" can solve this problem: the advantage is that direct and effective! It promotes the entire space air mixture can make odorous smoke. "Small Cooling Fan" allows moisture, etc. are well dispersed and absorbed, thus improving indoor air quality, access to a healthy, dry and safe working environment. Other benefits "Small Cooling Fan" is to eliminate the birds and bugs, but also to avoid other ventilation scheme prone to noise, moisture, rot and so brought.