Traditional Culture Encyclopedia - Hotel franchise - Excuse me, can I go in immediately after the ultraviolet germicidal lamp is turned on for half an hour?

Excuse me, can I go in immediately after the ultraviolet germicidal lamp is turned on for half an hour?

You can go in half an hour after closing.

When the ultraviolet lamp is working, it will emit ultraviolet rays, which will cause harm to eyes and skin, and even cause skin cancer due to excessive ultraviolet irradiation. There will be no ultraviolet radiation damage when the lights are turned off. However, when the ultraviolet lamp works, it will produce ozone, which will stimulate the respiratory tract and cause discomfort, so it can be ventilated and ventilated. So after half an hour of ultraviolet sterilization, you must make sure that the light has been turned off before you can go in. If the light is on, you can't go in for a long time!

Extended data:

Ultraviolet refers to the wavelength in the electromagnetic spectrum from 10 nm to 400 nm? Radiation can't cause human vision. 180 1 year, German physicist Ritter discovered that the outer section of the ultraviolet end of the solar spectrum can make the photographic film containing silver bromide sensitive, thus discovering the existence of ultraviolet rays. Ultraviolet rays can be used for sterilization, and too much ultraviolet rays can lead to skin cancer.

When ultraviolet rays irradiate the human body, it can promote the synthesis of vitamin D and prevent rickets. It is a fact that children often bask in the sun. Ultraviolet rays also have bactericidal effect, and the wards of hospitals are all disinfected with ultraviolet rays. However, too strong ultraviolet rays will do harm to the human body, so we should do a good job of protection. Glass, oxygen in the atmosphere and ozone layer in the sky all have a strong absorption effect on ultraviolet rays, which can absorb most of the ultraviolet rays in the sun, so it can protect the creatures on earth from ultraviolet rays.

References:

Ultraviolet-Baidu Encyclopedia