1. Natural ventilation Law: No matter how cold the weather, every day should be a period of time to open the window ventilation, the best time for 9 o'clock in the morning, 3 o'clock in the afternoon around, generally ventilated 10-30 minutes.
2. Ultraviolet irradiation method: No one can be in each room (15 square meters or so) to install a 30-watt low ozone ultraviolet light, irradiation more than 1 hours, can kill the indoor air 90% of pathogenic microorganisms.
3. Vinegar Disinfection method: Vinegar contains a variety of ingredients such as acetic acid, with a certain degree of sterilization, can be used to do domestic indoor air disinfection. Every 10 square meters can be eaten vinegar $number grams, add water twice times, put in the bowl with a slow simmer for 30 minutes, boil fumigation, the best will be closed doors and windows. Daily fumigation of the two times, continuous fumigation 3rd.
4. Ai Volume Disinfection method: can also be closed doors and windows, lit moxa, every 25 square meters with 1 AI volume, half an hour later, open the doors and windows ventilation.