Vent apparatuses comprise a filter comprising a pleasant scent such that when forced air passes therethrough, the scent on the filter is distributed into the room. Alternatively, a tank and/or reservoir may be disposed adjacent the vent, whereby upon activation a spray of a scent may be introduced into the airstream of the forced air and thereby distributed around the room, or the spray may be forced onto the filter, which may act as a substrate holding the scent thereon such that when forced air passes therethrough. In an alternative embodiment, the vent comprises fan blades that generate electricity from the forced air flowing therethrough for powering electronic devices and/or for charging batteries.

In one embodiment of the present invention, there is provided a moveable ventilation system comprising a supporting frame having at least one plenum, and at least one biofilter module mounted on the plenum for allowing air to flow through the biofilter module from an air inlet to an air outlet via a growth medium and a vegetation. The plenum is rotatably connected to the supporting frame.

A ventilation register includes a panel having a flange and a plurality of first apertures adapted to allow airflow through the panel, with each first aperture having a diameter or dimensions sufficient to allow movement of an object or entity through that first aperture. A filter is coupled to the ventilation register and has a plurality of second apertures adapted to allow airflow through the filter while inhibiting a movement of an object or entity through the filter.

A system for improving an air-quality of a given space serviced by an exit register of an AC system including a base frame device that is configured to engage the exit register, a metal base frame section for engaging the base frame device with a perimeter of the exit register. A register cover device that is configured to magnetically engage the base frame device. The register cover device having a plurality of alternating open space portions, a plurality of air diverting fin segments, and a magnet holder implement. The magnet holder implement includes at least four magnet holders that are disposed on each end corner portion of the register cover device. At least four height adjustable magnets are disposed on each of the magnet holders, wherein each of the height adjustable magnets is configured to magnetically engage the register cover device with the base frame device.

An air conditioner includes a housing having a discharge port, a blade rotatably provided in the discharge port, a blade drive unit configured to rotate the blade, a first support member configured to rotatably support the blade and comprising a first blade coupling portion, a second support member configured to rotatably support the blade, located to be closer to the blade drive unit than the first support member, and comprising a second blade coupling portion having a size different from that of the first blade coupling portion.

A ventilation member of the present disclosure comprises: a support having a through hole that serves as an air passage between inside and outside of a housing upon attaching the support to an opening of the housing; and an air-permeable membrane disposed on the support and closing the through hole. The support comprises: a supporting portion in which the through hole is provided and at which the air-permeable membrane is disposed, and an insertion portion extending from the supporting portion and having an end with a hook, wherein the insertion portion bends in a direction closer to a central axis of the ventilation member while the hook is passing through the opening by being inserted into the opening, and fixes the ventilation member to the opening with the hook engaging the housing after passing through the opening. The ventilation member has a stopper portion with which bending of the insertion portion in the direction is restricted within an elastically deformable range of the insertion portion during the insertion into the opening. A ventilation member of the present disclosure can be reliably fixed to an opening of a housing with the insertion portion, even when the insertion portion is inserted into the opening at an angle.

A stile and rail frame exterior solid core door brings fresh outside air into a structure horizontally through a ventilator assembly. The ventilator assembly includes an upper housing. The upper housing includes a filter for filtering the fresh air and a fan in a fan housing provides a flow of air into the upper housing and through the filter and into the structure horizontally through the door. Air flow through the housing is controlled by a movable damper in the upper housing. An actuator moves the damper in response to electronic input signals. Stale air is exhausted from the structure in a similar manner, through a fan in a lower housing. The upper and lower housings with their fans extend substantially the width of the door between the stiles. Electronic elements are in a housing in the door, and respond to information appropriately sensed by sensor elements placed in the structure. For new construction, the ventilator assembly may be located in a transom area above the door or may be vertically oriented adjacent to a door or as desired.

A air inlet for an air handling unit includes an intake grate that extends around a central axis and is configured to admit an airflow therethrough. The air inlet further includes an outlet duct arranged to lie along the central axis and positioned radially inward of the intake grate. The air inlet further includes a debris collection housing.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.

Disclosed is an invention related to a fan module, and a portable air purifier having same. The disclosed invention has a front end protrusion part provided on the rotation-directional front end of a fan blade provided on a fan, wherein the front end protrusion part protrudes forward in the rotational direction, from the rotation-directional front end of the fan blade, and at least a portion of the front end protrusion part further protrudes forward in the rotational direction than a connection point of a shroud and the rotation-directional front end of the fan blade.