Cleaning machine comprising a nebuliser device for nebulising a liquid product , a tank which contains said liquid product , an intake part which comprises at least one vent for waste air , wherein said nebuliser device comprises a dispenser for dispensing said liquid product , a first connecting duct which connects in fluid communication said tank with said dispenser , a second duct which connects in air-flow communication said at least one waste air vent of said intake part with said dispenser , wherein said dispenser comprises a hollow body comprising an inner cavity connected in air-flow communication with said second duct , a dispensing tube connected in fluid communication with said first duct , wherein a space forming a nebulisation area is provided arranged at a mouth of an outlet pass-through opening of said dispensing tube and at a mouth of an outlet pass-through opening of said inner cavity , characterized in that said machine comprises a dirt container and wherein said intake part comprises at least one motor adapted to intake air from said dirt container , said at least one motor being housed inside a container of said intake part , wherein said container comprises at least one inlet pass-through opening for passing air from said dirt container to said at least one motor and at least one outlet pass-through opening , wherein said at least one outlet pass-through opening is said at least one waste air vent , wherein said container comprises a pass-through vent hole of smaller size with respect to said outlet pass-through opening , wherein said pass-through vent hole opens the container to the outside. a nebuliser device for nebulising a liquid product , a tank which contains said liquid product , an intake part which comprises at least one vent for waste air , wherein said nebuliser device comprises a dispenser for dispensing said liquid product , a first connecting duct which connects in fluid communication said tank with said dispenser , a second duct which connects in air-flow communication said at least one waste air vent of said intake part with said dispenser , wherein said dispenser comprises a hollow body comprising an inner cavity connected in air-flow communication with said second duct , a dispensing tube connected in fluid communication with said first duct , wherein a space forming a nebulisation area is provided arranged at a mouth of an outlet pass-through opening of said dispensing tube and at a mouth of an outlet pass-through opening of said inner cavity , characterized in that said machine comprises a dirt container and wherein said intake part comprises at least one motor adapted to intake air from said dirt container , said at least one motor being housed inside a container of said intake part , wherein said container comprises at least one inlet pass-through opening for passing air from said dirt container to said at least one motor and at least one outlet pass-through opening , wherein said at least one outlet pass-through opening is said at least one waste air vent , wherein said container comprises a pass-through vent hole of smaller size with respect to said outlet pass-through opening , wherein said pass-through vent hole opens the container to the outside. <EOS>