1. A method of disinfecting air from an air stream (2) in an air supply channel (1), in particular an air conditioner, using a non-toxic disinfectant, characterized in spraying a disinfectant to form particles and injecting particles through at least one injection nozzle (30) of the injection device (3) in the injection direction (31), the injection direction (31) approximately corresponding to the direction of the air flow (2), and the distribution of disinfectant particles in the air is achieved ear flow (2) and subsequent adsorption of particles on the inner walls (100) along the entire length of the air supply channel (1). 2. A method of disinfecting air from an air stream (2) in an air supply channel (1), in particular an air conditioner, using a disinfectant, in which at least the disinfecting particles in the air are ionized in the air, while the air is electrically charged, while the walls of the channel are kept at the ground potential, so that charged particles precipitate faster on the walls of the channel, characterized by spraying a disinfectant to form particles and injecting particles through at least one injection nozzle (30) of the injection device (3) in the direction of injection (31), and the direction of injection (31) approximately corresponds to the direction of air flow (2), and the distribution of particles of the disinfectant in the air stream (2) and subsequent deposition of particles on the internal walls (100) along the entire length of the air supply channel (1). 3. The air disinfection method according to claim 1, characterized in that the injected disinfection1. Способ дезинфицирования воздуха воздушного потока (2) в канале (1) подачи воздуха, в частности, кондиционера, с помощью неядовитого дезинфицирующего средства, отличающийсяраспылением дезинфицирующего средства с образованием частиц и впрыскиванием частиц посредством по меньшей мере одного инжекционного сопла (30) инжекционного устройства (3) в направлении (31) впрыскивания, при