1. Keep alcohol properly. When 75% alcohol is disinfected, it belongs to Class A flammable dangerous goods. Keep away from fire and heat sources and place in a cool and ventilated place.

2. Open the window for ventilation. When using alcohol for disinfection, ensure ventilation and stay away from high-temperature objects. Never touch open flames, such as cooking, smoking and other jobs that cannot be carried out immediately after spraying high-concentration alcohol.

3. Stay away from fire sources. When disinfecting the surfaces of electrical appliances and stoves, turn off the power supply and fire source first, and then wipe them with alcohol after the electrical appliances and stoves are cooled, so as to avoid deflagration caused by alcohol volatilization.