Ultraviolet from lighting

According to the Energy efficient lighting – guidance for installers and specifiers (2006 edition), it is true that lamps used for general lighting will emit some UV. However, this is at a much lower level than would be experienced just by being outdoors. Under typical indoor lighting, the UV radiation from bare fluorescent lamps would be less than 1 per cent of that received in average daylight (see LIF Technical Statement No.8, www.lif.co.uk) ten filament lamps hardly emit any UV because the UV is absorbed by the glass envelope. Most tungsten halogen lamps are now made with UV-filter quartz and this removes the need for additional filters in most applications. Further information is available from lamp manufacturers.