An air treatment system comprising: an air purification assembly comprising one or more air purification modules and configured to, in an upstream to downstream order, take in air, produce purified air by conveying the air to traverse the one or more air purification modules, and expel the purified air; and an aerosol source configured to release a conditioning liquid in aerosol form into the purified air. Optionally, the conditioning liquid comprises a predetermined concentration of nonpathogenic micro-organisms. Optionally, one or more air purification modules comprises, in an upstream to downstream order, a HEPA or ULPA filter, a UVC irradiation unit, and an activated carbon filter.

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.

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.

A system for circulating a volatile composition throughout at least one room is provided. The system includes a central communication unit capable of receiving incoming signals and sending outgoing instructions. The central communication unit comprises a memory configured to store settings. The system includes a volatile composition dispenser capable of delivering the volatile composition into the air. The volatile composition dispenser is communicably connectable with the central communication unit through a wireless communication link. The system includes an air handling device communicably connectable with the central communication unit and configured to move air throughout the at least one room upon receipt of an outgoing instruction from the central communication unit.

A system for circulating a volatile composition throughout at least one room is provided. The system includes a central communication unit capable of receiving incoming signals and sending outgoing instructions. The central communication unit comprises a memory configured to store settings. The system includes a volatile composition dispenser capable of delivering the volatile composition into the air. The volatile composition dispenser is communicably connectable with the central communication unit through a wireless communication link. The system includes an air handling device communicably connectable with the central communication unit and configured to move air throughout the at least one room upon receipt of an outgoing instruction from the central communication unit.

An air freshening device for attachment to a forced air vent is disclosed herein. The air freshening device having a vented housing, a reservoir containing a dispersible fragrant material, and an fragrance adjusting mechanism for adjusting the amount of fragrant material dispersed into an air stream emitted from the forced air vent. In one embodiment, the fragrance adjusting mechanism is remotely controllable, and the amount of fragrant material dispersed into an air stream may also be controlled by the angular placement of the vented housing relative to the forced air vent.

An air freshener assembly includes a housing that is positionable on a distribution duct of a heating, ventilation and air conditioning (HVAC) system. A magnet is coupled to the housing and the magnet magnetically engages the distribution duct for retaining the housing on the distribution duct. A reservoir is positioned within the housing and the reservoir contains a chemical fragrance. A pump unit is coupled to the housing and the pump unit is in fluid communication with the reservoir to pump the chemical fragrance. The pump unit pumps a measured unit of the chemical fragrance each time the pump unit is turned on. The pump unit is in fluid communication with an interior of the distribution duct of the HVAC system to release the chemical fragrance into the distribution duct.

An air purification-aromatherapy machine includes a housing, an aromatherapy assembly, a filter screen, and an air extractor; the housing is provided with an air inlet and an air outlet; the aromatherapy assembly, the filter screen and the air extractor are placed in the housing; the air extractor comprises a fan, an air duct configured for guiding an airflow blown by the fan to the air outlet, and a sound absorber configured for absorbing noise of the airflow; an end of the air duct is extended to the air outlet, the sound absorber is placed in the air duct and corresponding to the air outlet.

Provided are a double-layer sound insulation and noise reduction device and an atomizer. The double-layer sound insulation and noise reduction device includes a noise reduction main body, a water baffle and a connecting member, the noise reduction main body includes an annular outer wall and an annular inner wall, the annular inner wall is spaced apart from the annular outer wall to form a sound insulation cavity, and the connecting member is connected between the annular inner wall and the annular outer wall; a side of the annular outer wall is provided with an outer wall ventilation opening, a side of the annular inner wall is provided with an inner wall ventilation opening communicating with the outer wall ventilation opening, and a bottom of the annular inner wall is formed with a water passing hole.

An HVAC air freshener comprises a cylindrical housing having at least one opening in the wall of the housing along the length of the housing, the housing adapted to be inserted through an opening in a planar portion of an HVAC plenum or ductwork, a fastener encircling and attached to the housing near one end of the housing and adapted to attach to an exterior planar surface of the plenum or ductwork, and a fragrance cartridge inserted into the housing. The fragrance from the fragrance cartridge escapes from the cartridge through the housing opening and into the plenum or ductwork.