Ultraviolet disinfection | ultraviolet disinfection | ultraviolet sterilizer

Ultraviolet disinfection | ultraviolet disinfection of secondary water | over-flow UV disinfection Hebei-Year prosperous Environmental Protection Technology Co., Ltd. is a professional production of UV disinfection manufacturers are welcome to inquire Contact: ultraviolet rays produce ultraviolet sunlight energy region is located invisible light. UV according to the wavelength divided: near ultraviolet (UVA), deep ultraviolet (UVB) and ultrashort ultraviolet (UVC). UV penetration of human skin is different. UV wavelengths longer, the greater the harm to human skin. UVA can pass through the dermis, the wave can enter the dermis. Shortwave referred UVC. Is a wavelength of 280 ~ 100nm UV. UVC largest of biohazard, but is absorbed by the ozone layer unit. Short wave UVB. Is the wavelength of 315 ~ 280nm UV. UVB on human skin have some physiological role. Some of these great UV is absorbed by the epidermis, the skin can not penetrate inside. But because of its higher-order energy, the skin can produce intense light damage, the irradiated parts of the dermal blood vessels to dilate, the skin may appear red and swollen, blisters and other symptoms, long-term exposure to the skin erythema, inflammation, skin aging, can cause serious skin cancer. UVB is also known as UV sunburn (red) segment, is should focus on prevention of ultraviolet band. Longwave referred to UVA. Is a wavelength of 400 ~ 315nm UV. UVA for clothing and human skin penetration is stronger than UVB, can reach the depths of the dermis, and epidermal melanin site work, causing skin hyperpigmentation, skin darkening, played defense ultraviolet light, protection of the skin. Thus UVA also called "tanning segment." Although UVA does not cause acute inflammation of the skin, but the effect on the skin slow, long-term accumulation, it is one of the causes of skin aging and serious damage. UVA can be subdivided into UVA-2 (320 ~ 340nm) and UVA-1 (340 ~ 400nm). The most penetrating UVA-1, up to the dermis layer of the skin tanning, damage to the skin of the biggest, but it is also the most easily overlooked, especially in the non-summer months, although the intensity of UVA-1 is weak, but there are still , because of the cumulative amount of time, causing skin damage. Especially loose skin aging, wrinkles, loss of elasticity, pigmentation; UVA-2 则 and UVB likewise reach the epidermis, which can cause sunburn, red hair pain, actinic keratosis (age spots), loss of transparency feeling. Thus, to prevent the ultraviolet radiation damage to the skin caused by the human body, mainly to prevent UVB ultraviolet irradiation; and prevent UVA, it is to avoid tanning. In Europe, people think that dark skin is a symbol of fitness, so instead you want to add in cosmetic tanning agents, regardless of UVA protection. This view has changed, recognizing the serious long-term damage to the body may produce ultraviolet, so people began to strengthen against UVA protection.