A surface cleaning device includes a nozzle and an odor dial assembly. The nozzle includes a nozzle housing and a dirty air passageway. The odor dial assembly include a fragrance member and a dial body configured to be removably coupled to the nozzle housing. The dial body at least partially defines a fragrance cavity configured to at least partially receive the fragrance member and a fragrance passageway extending therethrough. The odor dial assembly is configured to transition between a plurality of user-selectable positions to adjust an amount of fragrance particles released by the fragrance member into the dirty air passageway.

An Ionization unit (7) for cleaning air in a room (1) with a ceiling (3) and a floor (5), comprising an ionizer (19) configured to electrically charge particles in the air; and a support unit (13) configured to enable the ionization unit (7) to be positioned at a distance of at least 50 centimeters above the floor (5) of the room (1), wherein the support unit (13) allows the ionization unit (7) to travel within the room (1) while being distanced from the floor (5).

An allergen reduction device may include a body, a dust cup removably coupled to the body, a plurality of agitators rotatably coupled to the body and disposed within respective agitator cavities defined in the body, a suction motor disposed within the body and configured to cause air to flow along corresponding cleaning airflow paths from the agitator cavities into the dust cup, a hot air outlet fluidly coupled to the suction motor, the suction motor being configured to urge the air through the hot air outlet along a heated exhaust airflow path, and a heater positioned within the heated exhaust airflow path between the suction motor and the hot air outlet, the heater being configured to heat the air that is urged from the hot air outlet.

An allergen reduction device may include a body, a dust cup removably coupled to the body, a plurality of agitators rotatably coupled to the body and disposed within respective agitator cavities defined in the body, a suction motor disposed within the body and configured to cause air to flow along corresponding cleaning airflow paths from the agitator cavities into the dust cup, a hot air outlet fluidly coupled to the suction motor, the suction motor being configured to urge the air through the hot air outlet along a heated exhaust airflow path, and a heater positioned within the heated exhaust airflow path between the suction motor and the hot air outlet, the heater being configured to heat the air that is urged from the hot air outlet.

Disclosed are devices, systems, and methods for modular vacuum cleaners. An example vacuum cleaner system includes a canister vacuum cleaner device and a robotic vacuum cleaner device, where the robotic vacuum cleaner is removably coupled to or is digitally communicable with the canister vacuum cleaner device. The canister vacuum cleaner device comprises a canister to collect debris, a vertical hollow structure that located towards a rear of the canister and coupled to the canister, a flexible extendable hose, and a housing located below the canister, wherein the housing includes a retractable electrical cord. The robotic vacuum cleaner device comprises: a storage area to collect debris, a battery, a plurality of wheels that are removably coupled to one or more motors, and a lever or a valve structured to direct debris either to the storage area or to the canister.

Disclosed are devices, systems and methods for air purification in an airflow tract of vacuum cleaners. In some aspects, an air purification system for a vacuum cleaner comprises an ultraviolet (UV) light unit disposed in a first location within the vacuum cleaner along an airflow pathway, configured to emit UV light at air containing particles including dust, dirt, and microbes while the air containing the particles is flowing in the airflow pathway where the UV light unit is disposed; and a particle filter unit disposed in a second location within the vacuum cleaner along the airflow pathway, the particle filter unit comprising one or both of a high-efficiency particulate air (HEPA) filter and an active carbon filter.

Systems and methods for providing an air agitator nozzle system are disclosed. In an exemplary embodiment, the system comprises a vacuum and a nozzle. The vacuum is configured to suck particles from a floor surface. The nozzle is configured to spray air at the floor surface to loosen the particles and to push the loosened particles toward the vacuum to be sucked from the floor surface.

Systems and methods for providing an air agitator nozzle system are disclosed. In an exemplary embodiment, the system comprises a vacuum and a nozzle. The vacuum is configured to suck particles from a floor surface. The nozzle is configured to spray air at the floor surface to loosen the particles and to push the loosened particles toward the vacuum to be sucked from the floor surface.

An antibacterial cleaning machine with wet filter includes a container body inside which are disposed at least one motor group for aspirating flows of air and debris from outside; at least one first tank for collecting the debris which contains a first volume of filtering liquid which is arranged along the passage path between the inlet and outlet; at least one internal path of the flows of air and debris that includes an inlet, an outlet, conveying means that have an inlet immersed in the filtering liquid. The tank includes at least one sanitizing element made of silver and/or silver alloy which is positioned immersed in the volume of filtering liquid.

An antibacterial cleaning machine with wet filter includes a container body inside which are disposed at least one motor group for aspirating flows of air and debris from outside; at least one first tank for collecting the debris which contains a first volume of filtering liquid which is arranged along the passage path between the inlet and outlet; at least one internal path of the flows of air and debris that includes an inlet, an outlet, conveying means that have an inlet immersed in the filtering liquid. The tank includes at least one sanitizing element made of silver and/or silver alloy which is positioned immersed in the volume of filtering liquid.