How long does the UV lamp use for disinfection?

It is well known that ultraviolet rays have a certain killing effect on microorganisms and can be used to disinfect the medical environment. However, the killing efficiency of ultraviolet rays is directly proportional to the radiation intensity.

So, for the use environment, how long should the UV lamp be irradiated to achieve the disinfection effect? Here, let’s not talk about the installation location, surface cleanliness, and other factors, let’s take a look at the current epidemic prevention and control Regulations at work.

'Notice on Printing and Distributing the Medical Treatment Plan for the New Coronary Pneumonia Epidemic in Autumn and Winter' and 'Guidelines for Cleaning and DisinfectionFor disinfection, when using ultraviolet disinfection, the irradiation time can be appropriately extended to more than 1 hour.

'Guidelines for the Prevention and Control of Ophthalmology Outpatient Clinics

'Guidelines for the Prevention and Control of the New Coronary Pneumonia Epidemic of the Digestive Endoscopy Center

'Medical Institutions New Coronavirus Nucleic Acid Test Manual (Trial)' After each test, the laboratory should perform room ultraviolet disinfection for 30 minutes or ultraviolet disinfection machine for 1 hour. 'Medical Institutions New Coronavirus Nucleic Acid Test Manual (Trial Version 2)' After each test, the laboratory can use a fixed and/or movable UV lamp in the room for UV irradiation for more than 2 hours.

Ultraviolet radiation disinfection is still a common and effective method for surface and air disinfection in medical institutions. However, the specific use time is adjusted differently according to different environments and different objects. The above-mentioned regulations are especially related to the changes in the UV disinfection time after the end of the experiment in the nucleic acid laboratory, which reflects this characteristic.