A Disinfection process comprising at least the reactants H 2 O 2 and NO 2 - consisting of several substeps comprising at least: - a mixing step, wherein the reactants are mixed to obtain an active solution; - a distribution step in which the active solution is distributed on a surface to be disinfected, wherein the mixing step and the distribution step take place in a processing period Z A which starts at the time t 0 when the reactants are first brought into contact with each other and ends at the time t 1, at which every point on the surface to be disinfected is wetted with active solution, wherein t 0 is 0 and t 1 is higher than t 0, and - followed by an action step in which the distributed active solution acts on the surface contacted with active solution over an action period Z e, which begins at the time t 1 and ends after the time period Z e at the time t 2, wherein t 2 represents the time at which each point on the surface contacted with active solution is wetted with active solution for a sufficient time to obtain a disinfecting effect, and wherein t 2 is higher than t 1, characterized in that the maximum NO 2 - concentration [NO 2 -] 0 at time t 0 of the mixing step is 300 mM, the time-dependent concentrations of the reactants [H 2 O 2] and [NO 2 -] during the processing period and the action period are determined by NO 2 − = A k 1 and H 2 O 2 = A + D k 1 + rk 1, wherein A = − D 1 − exp D t − C, C = − ln D NO 2 − 0 ⋅ k 1 + 1 D, D = H 2 O 2 0 ⋅ k 1 + rk 1 − NO 2 − 0 ⋅ k 1, k 1 = k 4 H 3 O + 2 K S, H 3 O + + H 3 O + K S, HNO 2 + H 3 O +, k 4 = 3.56 ⋅ 10 14 exp − E A RT M − 1 s − 1, K S, HNO 2 = 5.13 ⋅ 10 − 4, K S, H 3 O + = 2 ⋅ 10 − 2, H 3 O + = 10 − pH, E A = 70 kJ / mol and [H 2 O 2] 0 denotes the initial H 2 O 2 concentration at time t 0 of the mixing step and wherein r = 0.11 is to be set, and the time-integrated reaction rate W over the active period Z e fulfills the inequality W = ∫ t 1 t 2 k 1 ⋅ H 2 O 2 ⋅ NO 2 − dt ≥ 10 mM wherein t 2 does not exceed 3 minutes, and wherein k 1 denotes the rate constant of the reaction between H 2 O 2 and NO 2 -, wherein k 1 depends on the pH value of the active solution on the surface and wherein the pH value of the active solution on the surface and the temperature may exhibit a time dependence, and wherein the pH value of the active solution before contact with the surface to be disinfected and the pH value of the active solution on the surface contacted with active solution are in the range of 2.1 ≤ pH ≤ 6.8. - a mixing step, wherein the reactants are mixed to obtain an active solution; - a distribution step in which the active solution is distributed on a surface to be disinfected, wherein the mixing step and the distribution step take place in a processing period Z A which starts at the time t 0 when the reactants are first brought into contact with each other and ends at the time t 1, at which every point on the surface to be disinfected is wetted with active solution, wherein t 0 is 0 and t 1 is higher than t 0, and - followed by an action step in which the distributed active solution acts on the surface contacted with active solution over an action period Z e, which begins at the time t 1 and ends after the time period Z e at the time t 2, - followed by an action step in which the distributed active solution acts on the surface contacted with active solution over an action period Z e, which begins at the time t 1 and ends after the time period Z e at the time t 2, wherein t 2 represents the time at which each point on the surface contacted with active solution is wetted with active solution for a sufficient time to obtain a disinfecting effect, and wherein t 2 is higher than t 1, characterized in that the maximum NO 2 - concentration [NO 2 -] 0 at time t 0 of the mixing step is 300 mM, the time-dependent concentrations of the reactants [H 2 O 2] and [NO 2 -] during the processing period and the action period are determined by NO 2 − = A k 1 and H 2 O 2 = A + D k 1 + rk 1, wherein A = − D 1 − exp D t − C, C = − ln D NO 2 − 0 ⋅ k 1 + 1 D, D = H 2 O 2 0 ⋅ k 1 + rk 1 − NO 2 − 0 ⋅ k 1, k 1 = k 4 H 3 O + 2 K S, H 3 O + + H 3 O + K S, HNO 2 + H 3 O +, k 4 = 3.56 ⋅ 10 14 exp − E A RT M − 1 s − 1, K S, HNO 2 = 5.13 ⋅ 10 − 4, K S, H 3 O + = 2 ⋅ 10 − 2, H 3 O + = 10 − pH, E A = 70 kJ / mol and [H 2 O 2] 0 denotes the initial H 2 O 2 concentration at time t 0 of the mixing step and wherein r = 0.11 is to be set, and the time-integrated reaction rate W over the active period Z e fulfills the inequality W = ∫ t 1 t 2 k 1 ⋅ H 2 O 2 ⋅ NO 2 − dt ≥ 10 mM wherein t 2 does not exceed 3 minutes, and wherein k 1 denotes the rate constant of the reaction between H 2 O 2 and NO 2 -, wherein k 1 depends on the pH value of the active solution on the surface and wherein the pH value of the active solution on the surface and the temperature may exhibit a time dependence, and wherein the pH value of the active solution before contact with the surface to be disinfected and the pH value of the active solution on the surface contacted with active solution are in the range of 2.1 ≤ pH ≤ 6.8.