The installation can be done indoors, without needing to go outside
Windproof, smokeproof, and insect-proof cover that prevents insects from penetrating the wall
Enhance waterproofing capabilities
Insect filter design
Prevent rainwater and rodents from entering
The 45-degree angle helps to effectively block rainwater
Insect-proof, rainproof, and prevents backflow
One-way opening and closing mechanism prevents insects from entering
Integrated fixed rotating shaft
Automatic inclined plane
The casing prevents backflow
Silicone edge seal