Provided is a cap-type vent having a porous waterproof air-permeable sheet inserted and mounted in a cap housing having fixing ribs formed therein, and fixing the waterproof air-permeable sheet by a supporting member made from an elastic material. The provided cap-type vent comprises a supporting member having one end coupled to an object, a waterproof air-permeable sheet disposed at the other end of the supporting member; and a cap housing formed in a cup shape having an opening formed at one end of the cup shape, and having the supporting member and the waterproof air-permeable sheet inserted through the opening, the supporting member is formed with an air circulation hole formed by penetrating the supporting member, and the inner side surface of the cap housing is formed with a fixing rib is configured to fix the supporting member by contacting the outer sidewall of the supporting member.

Provided is a cap-type vent having a porous waterproof air-permeable sheet inserted and mounted in a cap housing having fixing ribs formed therein, and fixing the waterproof air-permeable sheet by a supporting member made from an elastic material. The provided cap-type vent comprises a supporting member having one end coupled to an object, a waterproof air-permeable sheet disposed at the other end of the supporting member; and a cap housing formed in a cup shape having an opening formed at one end of the cup shape, and having the supporting member and the waterproof air-permeable sheet inserted through the opening, the supporting member is formed with an air circulation hole formed by penetrating the supporting member, and the inner side surface of the cap housing is formed with a fixing rib is configured to fix the supporting member by contacting the outer sidewall of the supporting member.

An adsorbent system including an enclosure having a cavity defining a humidity-controlled environment and a body having or defining a channel therein. The body is coupled to the enclosure such that a first end of the channel is in selective fluid communication with an ambient environment and a second end of the channel is in fluid communication with the humidity-controlled environment. The system further includes an adsorbent material in the channel, wherein the channel and adsorbent material are configured such that inlet fluid flowing from the first end to the second end through the channel is flowable over at least a portion of the adsorbent material, and such that outlet fluid flowing from the second end to the first end is directly flowable over a majority of the portion of the adsorbent material that is flowable over by the inlet fluid, The system further includes a valve system positioned at or adjacent to or in fluid communication with the first end of the channel. The valve system includes an inlet valve portion that is biased to a closed position to generally block a flow of inlet fluid therethrough and that is movable to an open position when a pressure in the channel is sufficiently low relative to a pressure in the ambient environment. The valve system further includes an outlet valve portion that is biased to a closed position to generally block a flow of outlet fluid therethrough and that is movable to an open position when the pressure in the channel is sufficiently high relative to the pressure in the ambient environment.

An adsorbent system including an enclosure having a cavity defining a humidity-controlled environment and a body having or defining a channel therein. The body is coupled to the enclosure such that a first end of the channel is in selective fluid communication with an ambient environment and a second end of the channel is in fluid communication with the humidity-controlled environment. The system further includes an adsorbent material in the channel, wherein the channel and adsorbent material are configured such that inlet fluid flowing from the first end to the second end through the channel is flowable over at least a portion of the adsorbent material, and such that outlet fluid flowing from the second end to the first end is directly flowable over a majority of the portion of the adsorbent material that is flowable over by the inlet fluid, The system further includes a valve system positioned at or adjacent to or in fluid communication with the first end of the channel. The valve system includes an inlet valve portion that is biased to a closed position to generally block a flow of inlet fluid therethrough and that is movable to an open position when a pressure in the channel is sufficiently low relative to a pressure in the ambient environment. The valve system further includes an outlet valve portion that is biased to a closed position to generally block a flow of outlet fluid therethrough and that is movable to an open position when the pressure in the channel is sufficiently high relative to the pressure in the ambient environment.

A ventilation cap according to the present disclosure includes a body, a ventilation filter, a cover member, and legs. A first vent hole is defined in the body, and the ventilation filter is disposed on the body to cover the first vent hole. The cover member is coupled to the body to cover the ventilation filter, and the legs are formed beneath the body and are spaced apart from each other around the first vent hole. Further, the legs are received in a hole defined in a target housing to be coupled to the target housing, and a second vent hole communicating with the first vent hole is defined in a side portion of the cover member.

A ventilation cap according to the present disclosure includes a body, a ventilation filter, a cover member, and legs. A first vent hole is defined in the body, and the ventilation filter is disposed on the body to cover the first vent hole. The cover member is coupled to the body to cover the ventilation filter, and the legs are formed beneath the body and are spaced apart from each other around the first vent hole. Further, the legs are received in a hole defined in a target housing to be coupled to the target housing, and a second vent hole communicating with the first vent hole is defined in a side portion of the cover member.

A vehicle headlight air extractor includes an air inlet and an air outlet, a ventilation chamber disposed between the air inlet and the air outlet of the air extractor, the ventilation chamber includes a fan adapted to produce a flow of air from the air inlet to the air outlet, and a sealing system against external particles.

A vehicle headlight air extractor includes an air inlet and an air outlet, a ventilation chamber disposed between the air inlet and the air outlet of the air extractor, the ventilation chamber includes a fan adapted to produce a flow of air from the air inlet to the air outlet, and a sealing system against external particles.

Provided are an air permeable vent filter, and a headlight assembly comprising the same. The air permeable vent filter has a body in which a nanofiber web, which comprises a plurality of pores and is formed by accumulating a nanofiber electrospun from a spinning solution in which a polymer material and a solvent are mixed, is spirally wound, and the air permeable vent filter implements an air permeable filter function of allowing air to pass through from one lateral side of the body to the other lateral side and blocking liquids and solids.

Provided are an air permeable vent filter, and a headlight assembly comprising the same. The air permeable vent filter has a body in which a nanofiber web, which comprises a plurality of pores and is formed by accumulating a nanofiber electrospun from a spinning solution in which a polymer material and a solvent are mixed, is spirally wound, and the air permeable vent filter implements an air permeable filter function of allowing air to pass through from one lateral side of the body to the other lateral side and blocking liquids and solids.