Category: External installation series
Main Material: Aluminum Alloy
Color: Natural Anodizing
Blade Space(mm): 22
Humidity Decrease: 20%
Thickness of Filter net(mm): 18
Total Thickness(mm):85
Protection Grade: IP65
Effective ventilationrate:45%

Main Material: Aluminum Alloy
Color: Natural Anodizing
Blade Space(mm): 13
Thickness of Fins(mm): 0.8
Thickness of Filter net(mm): 12
Total Thickness(mm):30
Protection Grade: IP54
Effective ventilationrate:35%

The merit and demerit of these two type filter cotton 1 Polyurethane filter cotton(Black color), it can be washing and reuse, small wind resistance, but the filtering effect is ordinary, small amount of dust. 2 Non-woven fabric filter cotton(White color) good filtering effect, large amount of dust. But wind resistance is high, do not wash and reuse, the customer have to replace new one when the dust accumulates.

Category: External maintenance series
Main Material: Aluminum Alloy
Color: Natural Anodizing
Blade Space(mm): 13
Thickness of Fins(mm): 0.8
Thickness of Filter net(mm): 12
Total Thickness(mm):80
Protection Grade: IP54
Effective ventilationrate:70%