When ultraviolet lamp is used for indoor air disinfection, how many minutes should the irradiation time be longer than ()?

When ultraviolet lamp is used for indoor air disinfection, the irradiation time should be more than 30 minutes.

Ultraviolet lamp is a device that can emit ultraviolet rays, is a necessary tool to observe the fluorescence and phosphorescence characteristics of samples, and is also a physical means of sterilization. The wavelength is in the range of 10~400nm.

Related lamps include strong ultraviolet high-pressure mercury lamp, high-intensity metal halogen lamp, printing lamp, capillary ultra-high-pressure mercury lamp, washing lamp, special lamp for optical disc, ultraviolet iron lamp, germicidal lamp, short-arc xenon lamp, excimer discharge lamp, etc.

Ultraviolet is a low-energy electromagnetic wave, which is widely used in medical treatment, health and epidemic prevention, food industry, pharmaceutical industry and other departments because of its good bactericidal effect. However, how to use the ultraviolet lamp correctly, ensure its sterilization effect, prolong the service life of the lamp tube and avoid accidental injury is the first thing that every operator needs to master. Now, I will talk about my experience in the past few years.

Ultraviolet light has a wide range of applications, the following are some common applications:

1, disinfection: ultraviolet rays can kill or inactivate bacteria, viruses, fungi and other microorganisms, so they are widely used in water treatment, air purification, medical equipment disinfection and other fields.

2. Curing: Ultraviolet rays can trigger some chemical reactions, such as photopolymerization, which can be used to cure materials such as paint, ink and glue.

3. Metal detection: ultraviolet rays can make some metals fluoresce, which can be used for industrial metal detection and quality control.

4. Ultraviolet absorber: Ultraviolet absorber can be used in the production of plastics, fibers and other materials to protect them from fading or aging due to ultraviolet irradiation.

Cosmetics: Ultraviolet rays can promote the production of melanin in skin, so they are widely used in cosmetics.

Fluorescence: Ultraviolet rays can make some substances emit fluorescence, which is widely used in scientific experiments, fluorescent lamps, neon lights and other fields.