The present invention relates to a modular ozone-based disinfection system and method for treating air using configurable components tailored to specific applications. The system includes a purification configuration with an air circulation subsystem and an electrolytic ozone generator supplied by a tank configuration, which may comprise a fixed tank or a replaceable water cartridge. The generated ozone is mixed with airflow to create an oxidizing environment and is subsequently passed across a titanium dioxide-coated surface to reduce ozone levels before discharge. Optional modules include a dehumidifier configuration for extracting ambient moisture and a source water configuration for continuous supply. A controller manages system functions, including ozone generation, purification modes, and safety protocols. The method supports flexible operation, enabling safe, effective disinfection in occupied or confined spaces. The modular design allows for scalable deployment across diverse environments, including healthcare, food service, and public facilities.

The present disclosure provides an air disinfection apparatus for use with an air conditioning system configured to create an airflow. The air disinfection apparatus comprises a hollow housing for conveying said airflow therethrough between an air inlet and an opposite air outlet determining an airflow direction; a screen forming a non-ionizing electrode extending along a screen longitudinal extension axis, said non-ionizing electrode being mounted in the housing between the air inlet and the air outlet so that a screen surface is tangential to the airflow direction; a wire forming an ionizing electrode, said wire being suspended in said hollow housing between the air inlet and the air outlet and having a wire axis aligned with the screen longitudinal extension axis so as to face said screen surface; terminals electrically connected to the wire and screen for coupling thereto high and low voltage outputs of a high voltage generator of sufficient voltage to create a corona discharge zone across the airflow between the wire and the screen; wherein the screen includes an ion receiver positioned downstream of the corona discharge zone relative to the airflow direction, said ion receiver being dimensioned to cause ions produced in the corona discharge zone to be attracted so as to prevent release of ions outside of the air disinfection apparatus.

An aroma diffuser device for diffusing selected scents into the airspace of interior habitable spaces is disclosed. The disclosed device includes multiple diffusers for diffusing multiple scents into a fan-induced airstream. Two, three or more diffusers can be included in and/or upon the device.

A scent control apparatus can include: a housing defining a first aperture and a second aperture; an intake vent and a flow-restricted output vent respectively coinciding at least in part with the first aperture and the second aperture; a fan positioned inside the housing and operable to bring air through the intake vent and flow air directly from the fan and into a chute leading to the flow-restricted output vent; and a cartridge including an oxidant generator coil, the cartridge being removably secured to the housing to position the oxidant generator coil between the fan and the chute.