Air is an important route of transmission for microorganisms such as bacteria and viruses, and in our work and living places, we constantly face the harm of viruses and harmful bacteria in the air. Clean and fresh air is the foundation of life. Even in the industrial field, the microbial content in the air must usually be low, such as requirements for raw materials and food storage, processing, and packaging processes.
Ultraviolet radiation can provide healthy air with a low total microbial count. This has improved hygiene and storage conditions in the pharmaceutical and food processing industries. Raw materials and food can be contaminated by microorganisms in the air, such as bacteria, yeast, fungi, etc. And ultraviolet rays can reduce the content of microorganisms, because ultraviolet short waves have strong bactericidal effects. Once the DNA inside a microorganism is exposed to ultraviolet short wave radiation, its structure is destroyed and loses its activity, thus being killed.