Is the purple light from mosquito killer lamp harmful?

In the hot summer, the most annoying thing is mosquitoes. A mosquito bite will leave a big bump, which not only makes people itchy but also spreads various diseases. So in summer everyone will take various mosquito repellent measures to protect themselves. Among various mosquito repellent measures, mosquito killer lamps are a very effective mosquito killer, but many people worry that the purple light emitted by mosquito killer lamps will cause harm to the human body. So, is the purple light from mosquito killer lamps really harmful?

The purple light produced by mosquito killer lamps is ultraviolet light, which does have a certain negative impact on the human body, but if used reasonably, the impact of mosquito killer lamps on human health is limited. The main impacts are as follows:

1. Accelerate skin aging and darkening

The ultraviolet rays from mosquito killer lamps are mostly long-wave ultraviolet A light, which can penetrate into the dermis of the skin. If the human body is exposed to it for a long time, it will be tanned. It may also accelerate skin aging, cause wrinkles, and even induce skin cancer.

2. Secondary pollution

The photocatalytic mosquito killer uses ultraviolet light mosquito traps, which are the favorite of mosquitoes. The traps emit ultraviolet light with a wavelength of 360-380 nanometers. They use the mosquito's phototaxis to attract mosquitoes and kill them by air drying or electrocution. This type of mosquito killer can easily cause serious secondary pollution. When the mosquito's body is air dried or electrocuted, a large number of pathogens in the body will spread into the air and onto the surface of objects.

3. Damage to the eyes

In addition, long-term exposure to ultraviolet rays can also cause eye damage. The shorter the wavelength of ultraviolet rays, the stronger the damaging effect on the eyes. If human eyes are exposed to ultraviolet rays for more than 3 minutes, it is possible to be harmed because the safety limit of the human body is exceeded; if directly exposed for 15 minutes, the cornea will be damaged, leading to photoelectric conjunctivitis, sudden severe pain in both eyes, foreign body sensation, photophobia, tearing or eyelid spasm, etc. Long-term exposure to strong ultraviolet rays can cause blindness.