Uv Germicidal Lamp Dangers

Uv light also known as ultraviolet germicidal irritation uvgi comprises a segment of the electromagnetic spectrum between 400 and 100 nm.

Uv germicidal lamp dangers.

Uvgi is used in a variety of applications such as food air and water purification. The uv spectrum is separated into four parts. Uva 315 nm to 400 nm uvb 280 nm to 315 nm uvc 200 nm to 280 nm and uv vacuum. Therefore germicidal lamps with doped glass cannot produce.

Yet nardell says the perception that uv is dangerous has persisted for. Uv light and health effects. Most germicidal lamps including those from uv resources are produced with doped quartz glass which blocks the transmission of the 185nm ozone producing wavelength. The lamps are used in a variety of applications where disinfection is the primary concern including air and water purification food.

The uv range of the electromagnetic radiation spectrum extends from 10 nm to 400 nm. Depending on the wavelength and time of exposure uv radiation may cause harm to the eyes and skin. Ultraviolet germicidal irradiation uvgi is a disinfection method that uses short wavelength ultraviolet ultraviolet c or uv c light to kill or inactivate microorganisms by destroying nucleic acids and disrupting their dna leaving them unable to perform vital cellular functions. The majority of uv c germicidal lamps are in the 250 nm range that is dangerous to humans cataracts and skin cancer and should only be used where humans aren t present.

The uv segment has different sections labeled uv a 400 to 315 nm uv b 315 to 280 nm and very high energy and destructive uv c 280 to 200 nm. For uv light products that claim to clean sanitize or disinfect cpap machines and accessories tests showed the power of the uv light and the amount of time cpap accessories were exposed to this. The doped quartz glass allows the 253 7nm radiation to pass through but it blocks the 185nm wavelength from escaping. Germicidal lamps emit radiation in the uv c portion of the ultraviolet uv spectrum which includes wavelengths between 100 and 280 nanometers nm.

A quartz uv germicidal lamp is used to disinfect a train at the sviblovo station of the moscow metro transit system.