Most second-hand houses have been lived in, some have been occupied for a long time, and some have even changed owners, so there will be some germs left in the house. There are a lot of second-hand room not only left with germs and viruses, and the number of species is also large. In particular, a large number of viruses can be found on the walls, ceilings, floors, door and window handles as well as in the kitchens and bathrooms, and some of these germs and viruses can survive for many years. Therefore, Xu purchased a second-hand housing tenants and renters before moving in, the house should be indoor and outdoor a comprehensive and thorough cleaning and disinfection.
Disinfection method:
Disinfection of the surface walls: 500-1000mg/l of chlorine disinfectant spray, first from the outside to the inside of the spray ground, to the end of the indoor disinfection and then from the inside to the outside of the spray again on the ground. The effect is 60 minutes. Cement walls, wooden walls, lime walls, liquid absorption of 100ml/m2, spraying should not exceed the amount of liquid absorption. If there is fear of corrosion or bleaching and other decorations should be covered first.
Surface disinfection: 250-500mg/l effective chlorine solution to wipe 2 times, if necessary, 3 minutes after the water wipe clean to prevent damage to the items. Ground disinfection can also be used 500-1000mg / l of effective chlorine solution to wipe.
Air disinfection: physical disinfection methods: a: open windows and ventilation. This is the preferred method of air disinfection, safe and effective. b: UV irradiation disinfection, should reach 1.5w/m3, irradiation for more than 30 minutes. Chemical disinfection: peroxyacetic acid fumigation disinfection method: indoor air and smooth surface peroxyacetic acid fumigation disinfection dosage of 1g/m. Fumigation of the original solution of peroxyacetic acid diluted with water into a 5% aqueous solution, placed in an enamel basin (please note that do not contact with the metal), placed in an asbestos mesh on the furnace, closed doors and windows, connected to the power supply, to be evaporated to dozens of ml of peroxyacetic acid when cutting off the power supply, the role of 30-60 minutes. -60 minutes. Open the door and window. This method is the most stringent air sterilization method, do not use the general situation.
Precautions:
1, disinfectant have a certain corrosive and bleaching, where there are valuables, please be careful to use.
2, please pay attention to the human body's own protection, in the process of disinfection operations wear masks, hats, gloves, glasses.
3, the concentration of disinfectant calculation and allocation of more complex, if you do not know please consult a professional disinfectant.