UV disinfection is the use of ultraviolet light to kill infectious bacteria, viruses, and fungi. While modern techniques have not always been in use, the effect of UV light on infectious microbes has been known and studied for more than 100 years.

UV light operates at a shorter wavelength than all visible light. The UV wavelength can penetrate viruses, bacteria, and other infectious particles and cause physical destruction. The destruction of these particles renders them unable to infect and therefore disinfects the surface, liquid, or air where they were living.

UV disinfection is extremely effective. some lamps disinfection achieves 99.99% bacteria kill on surfaces in less than 4 seconds, which is 10x to 1000x better than existing treatments.

Ultraviolet light has been used for disinfection purposes for many years, so we know that with proper precautions in place, UV is safe to use for disinfection. As long as those operating the disinfection devices are trained in the use of UV light and are themselves protected, the process is safe. It is also a good idea to take precautions to keep personnel who are not protected out of rooms that are being disinfected with near UV light.

UV disinfection can be used for hard surfaces, liquids, and even air streams. In fact, UV light is one of the most popular non-chemical ways to disinfect water sources safely because it does not leave behind any chemical elements in the water. Because of its versatility, disinfection with UV light is used in hospital, agricultural, pharmaceutical, and many other settings.

As with any other method of disinfection, it only lasts until the equipment, air, surface, etc. is once again exposed to harmful bacteria/viruses. Regular disinfection is necessary. For PPE, daily disinfection is ideal.

Sterilization– Per the CDC, sterilization describes a process that destroys or eliminates all forms of microbial life and is carried out by physical or chemical methods.

Disinfection– Per the CDC, disinfection describes a process that eliminates many or all pathogenic microorganisms on inanimate objects.

Decontamination– To decontaminate is to make an object or area safe by removing, neutralizing, or destroying any harmful substance. Basically, decontamination is the result after the processes of sterilization or disinfection.