What should be noted when using an ultraviolet sterilizer?

What should be noted when using UV sterilizers?
1. Regular monitoring of the UV module's lamp intensity is required; replace the lamps if the intensity is less than 70 microwatts or if the cumulative usage time exceeds 1000 hours.
2. It's important to note that UV rays have a weaker penetration, and in environments with more air dust, the disinfection effect is more likely to decrease.
3. The radiation must be performed when the office is unoccupied, with a total duration of approximately 2 hours. Additionally, no staff members are allowed to enter the room during the radiation process.
4. Weekly cleaning of the UV disinfection module's lamps with 95% alcohol and logging the activity is required.
The placement requirements for the disinfection lamp tubes necessitate installation 1 meter above the table.