Indoor hanging ultraviolet disinfection lamps are recommended for the ultraviolet lamps in restaurants. The power of ultraviolet lamp (wavelength 200-275nm) should be set to not less than 1.5W m3, and the ultraviolet lamp should be equipped with a reflector with intensity greater than 70μW/cm 2. The ultraviolet lamps in the special room should be evenly distributed within 2m from the ground.
The suitable temperature range of ultraviolet disinfection is 20℃~ 40℃, and the relative humidity is lower than 80%. When ultraviolet lamps are used to disinfect indoor air, the room should be kept clean and dry to reduce dust and water mist. When the temperature is lower than 20℃ or higher than 40℃ and the relative humidity is higher than 60%, the irradiation time should be appropriately extended.
In the process of using the ultraviolet lamp, the surface of the ultraviolet lamp should be kept clean. Usually wipe it once every two weeks with an alcohol cotton ball or gauze. When dust or oil stains are found on the surface of the lamp tube, they should be wiped at any time.
Don't let ultraviolet light shine on people to avoid injury. Clearly identify the switch of ultraviolet lamp, and implement the registration system for the use of ultraviolet lamp.