Is UVC Safe for People to Use?

Short-wavelength UVC, with wavelengths ranging from 200 to 275 nanometers, is also known as short-wave germicidal ultraviolet (UV) light. It has the weakest penetration ability and cannot pass through most transparent glass or plastics. The short-wavelength ultraviolet light in sunlight is almost entirely absorbed by the ozone layer and is absorbed by the ozone layer beforereaching the Earth's surface.

1) Effects on Human Health 

In nature, UVC is absorbed by the ozone layer before reaching the Earth's surface, so its impact on the skin can be neglected. However, short-wavelength ultraviolet light can cause significant harm to the human body if directly exposed. Short-term exposure can cause skin burns, and long-term or high-intensity exposure can even lead to skin cancer.

2) Applications

UVC short-wave ultraviolet light is emitted by ultraviolet germicidal lamps. Short-wave ultraviolet light is widely used in various fields such as hospitals, air conditioning systems, disinfection cabinets, water treatment equipment, drinking water machines, sewage treatment plants, swimming pools, food and beverage processing and packaging equipment, food factories, cosmetics factories, dairy factories, breweries, beverage factories, bakeries, and refrigerated rooms.

3) Advantages and Disadvantages of Ultraviolet Light:

a) Advantages of Ultraviolet Light:

•  1. Disinfection and germicidal properties;

•  2. Promotion of bone development;

•  3. Beneficial effects on blood coloration;

•  4. Occasional treatment of certain skin conditions;

•  5. Promotion of mineral metabolism and vitamin D formation within the body.

b) Disadvantages of Ultraviolet Light:

•  1. Induction of skin aging and wrinkle formation;

•  2. Generation of spots;

•  3. Causes of skin inflammation;

•  4. Risk factors for skin cancer.