Abstract: A ventilation seat for a vehicle is provided. The ventilation seat is configured such that a through channel to directly discharge air is formed in a seat pad so that air supplied from an air supply unit is discharged over the seat pad through the through channel, whereby the through channel or the like can be prevented from becoming narrow or being blocked due to the weight of an occupant, resulting in increased or maximize air discharge rate.

Abstract: A bi-directional blower includes a blower body for guiding for air to flow along an entire circumference scroll shape of an inner space of the blower body. The blower body divides the inner space into an upward space and a downward space to guide air flow. The blower body comprises: an upper discharge case discharging the air flow along the entire circumference scroll shape toward the upward space through an upper discharge port; and a lower discharge case discharging the air flow along the entire circumference scroll shape toward the downward space through a lower discharge port.

Abstract: A polyurethane filter foam is provided herein. The polyurethane filter foam may have improved permeability by having both a small cell and a large cell in a range for maximizing the opening property of the foam. In some instance, this is achieved by specifically configuring and foaming a composition of polyether polyol and methylene diphenyl diisocyanate (MDI) to manufacture the polyurethane foam. The polyurethane foam of the present invention can be manufactured without performing a reticulation process.

Abstract: A ventilation seat for a vehicle is provided. The ventilation seat is configured such that a through channel to directly discharge air is formed in a seat pad so that air supplied from an air supply unit is discharged over the seat pad through the through channel, whereby the through channel or the like can be prevented from becoming narrow or being blocked due to the weight of an occupant, resulting in increased or maximize air discharge rate.

Abstract: A polyurethane filter foam is provided herein. The polyurethane filter foam may have improved permeability by having both a small cell and a large cell in a range for maximizing the opening property of the foam. In some instance, this is achieved by specifically configuring and foaming a composition of polyether polyol and methylene diphenyl diisocyanate (MDI) to manufacture the polyurethane foam. The polyurethane foam of the present invention can be manufactured without performing a reticulation process.

Abstract: A ventilation seat for a vehicle includes a seat pad having opposing lower and upper portions. The lower portion has an air branching channel formed therein. The seat pad has a plurality of air discharge holes arranged in a configuration that matches the air branching channel. The air discharge holes penetrated from the upper portion to the lower portion of the seat pad. A channel finish plate is attached to the lower portion of the seat pad and seals the air branching channel. The channel finish plate includes a duct connection hole penetrating therethrough.