The present invention relates to a disinfection method to be used for cleaning. The invention is characterized in that hydrogen peroxide (H2O2) is drained/transferred from one or more tanks (16) by a liquid pressure created by one or more pumps or gravity, through one or more draining pipes (6) to one or more draining devices (5), which draining device (5) drains hydrogen peroxide to one or more onto one or more evaporation top surfaces (4ea) of an evaporation member (4e) of a warming/heating device (4), the evaporation top surface (4ea) is at an evaporation angle (4ej) of 1 to 30 degrees so that the end on the draining device (5) side is higher, whereby hydrogen peroxide spreads by gravity on the evaporation member (4e) where the hydrogen peroxide (H2O2) turns into hydrogen peroxide gas, by means of which hydrogen peroxide gas the disinfection is performed, the draining device (5) drains hydrogen peroxide onto one or more evaporation top surfaces (4ea) of an evaporation member (4e) of a warming/heating device (4), by means of one or more horizontal plane indicators (10) the evaporation top surface (4ea) may be adjusted to the correct position in every direction, whereby hydrogen peroxide drains evenly and on the evaporation top surface (4ea) turns into hydrogen peroxide gas by means of which hydrogen peroxide gas the disinfection is carried out.La présente invention concerne une méthode de désinfection destinée à être utilisée pour le nettoyage. L'invention est caractérisée en ce que du peroxyde d'hydrogène (H2O2) est drainé/transféré à partir d'un ou de plusieurs réservoirs (16) par une pression de liquide créée par une ou plusieurs pompes ou par gravité, à travers un ou plusieurs tuyaux de drainage (6) vers un ou plusieurs dispositifs de drainage (5), ledit dispositif de drainage (5) draine le peroxyde d'hydrogène vers une ou plusieurs surfaces supérieures d'évaporation (4ea) d'un élément d'évaporation (4e) d'un dispositif de réchauffement/chauffage (4), la surfa
