An essential component for ventilation of a
building is an air louver. It enables to pass through the air while preventing
unwanted elements such as dirt, water, and debris from entering. The design of
air louver involves a number of fixed or movable blades mounted in a frame. An
air intake louver is used to provide fresh air to a building. Its the
arrangement of a louvers fixed blades that allows air to flow while preventing
water from entering at a nominal inlet speed. The purpose of air louvers in a building
is to provide resistance to rainwater, outside noise, speedy winds, etc.