Device for treating air and/or surfaces with treatment substance for disinfecting, can include a blower for sucking and blowing air, at least one conveying device for conveying the treatment substance, and at least one feed nozzle for feeding the treatment substance, wherein the feed nozzle is connectable to the conveying device via a connection line. The at least one feed nozzle can be arranged in the air flow of the blower, wherein the at least an end of a feed nozzle is removable and can also be arranged at a distance from the device, and can be connected to a ventilation duct of a ventilation and/or air-conditioning system of an environment. Additionally or alternatively, at least one further feed nozzle, which is connected or connectable to the conveying device via a connecting line, can be connected to a ventilation duct of a ventilation and/or air-conditioning system of the environment.

A personalized air cleaning device having a housing which has at least one air intake region for sucking air into the housing and at least one air blow-out region for blowing the air out of the housing, a cleaned blow-out air stream being directed towards the body, and in particular against the face of a user, the housing of the air cleaning device being of approximately disc-shaped round or oval or polygonal design, and wherein the air intake region and the air outlet region are arranged in the same plane on the circumference of the housing.

A personalized air cleaning device having a housing which has at least one air intake region for sucking air into the housing and at least one air blow-out region for blowing the air out of the housing, a cleaned blow-out air stream being directed towards the body, and in particular against the face of a user, the housing of the air cleaning device being of approximately disc-shaped round or oval or polygonal design, and wherein the air intake region and the air outlet region are arranged in the same plane on the circumference of the housing.

Enabling systems and methods for ultraviolet treatment of ambient air contaminants are disclosed. One disclosed example computing device includes a housing; a fan, a UV light source configured to emit UV light, and a baffle configured to slow air flow, wherein each is positioned within the housing; and wherein the UV treatment system is configured to: cause a movement of the fan that induces the air flow and moves contaminants through the baffle and around the UV light source; transmit an electrical signal to the UV light source to cause the UV light source to emit UV light in a first frequency range to generate a quantity of an oxidizing agent and in the second frequency range to eliminate or kill contaminants and reduce at least a portion of one or more undesirable byproducts; and expel the treated air out of the housing via the air flow pathway.

A fluid purification system for purifying a fluid, such as air, within a fluid flow system, such as a heating, ventilation, and air conditioning system. The fluid purification system has a housing with a specular interior surface. An aerodynamic ultra-violet light module is retained by a framework within the housing to be surrounded by the specular interior surface. The light module has an aerodynamic intake nose cone adjacent to the first end of the housing and an aerodynamic exhaust tail cone adjacent to the second end of the housing. The nose and tail cones are eye-shaped, taper distally, and cooperate to retain a plurality of ultra-violet bulbs in an eye-shaped array that communicates longitudinally within the housing. The housing can be rectangular in cross section with upper and lower walls and opposed sidewalls. Each wall can have a concave inwardly-facing surface operative to focus ultra-violet light within the housing.

An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.

An air conditioner includes a housing. The housing includes a panel including an opening. The air conditioner further includes an indicator light arranged at the opening, an air heat exchange duct and an air treatment duct arranged in the housing and not in communication with each other, an air heat exchange device arranged at the air heat exchange duct and configured to conduct heat exchange for air in the air heat exchange duct, and an air treatment device arranged at the air treatment duct and configured to conduct at least one of humidification or purification for air in the air treatment duct.

An air conditioner includes a housing. The housing includes a panel including an opening. The air conditioner further includes an indicator light arranged at the opening, an air heat exchange duct and an air treatment duct arranged in the housing and not in communication with each other, an air heat exchange device arranged at the air heat exchange duct and configured to conduct heat exchange for air in the air heat exchange duct, and an air treatment device arranged at the air treatment duct and configured to conduct at least one of humidification or purification for air in the air treatment duct.

An air duct device and an air handling apparatus are provided. The air duct device can include a housing, a first air duct, and a second air duct. The first air duct is arranged in the housing and has an air input end and an air output end. The second air duct is arranged in the housing and has an air input end and an air output end. The air input end of the second air duct passes by the air output end of the first air duct.

The present disclosure relates to an air duct device and an air handling apparatus. The air duct device can include a first air duct and a second air duct. The first air duct has an air inlet and an air outlet. The second air duct has an air input channel passing by the air outlet of the first air duct, and an air outlet that is in communication with the first air duct.