A three-channel windless air outlet incudes a housing including a plurality of ducts; an installation space connected to a middle air duct in the housing; and an air drainage duct located at the installation space and including an air guide chamber and a windless board covering the air guide chamber; wherein a cross-section of the air guide chamber in a first direction is trapezoidal such that an area increases in a second direction so that wind diffuses from a center to both sides during flow from an inlet to an outlet in the air guide chamber.
WINDLESS AIR OUTLET
Patent
Electronic Resource
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