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UV-C light air purifiers use technology that destroys bacteria, viruses, and mould spores using ultraviolet radiation at 254 nanometre wavelength. This germicidal process neutralises microorganisms without chemical additives or ozone production. UV sterilisation works alongside traditional filters to provide comprehensive air cleaning. Most units feature enclosed UV chambers to prevent direct exposure whilst maintaining effectiveness. UV-C lamps typically operate for 8,000-10,000 hours before requiring replacement. Smart air purifiers often include UV lamp life monitoring and automatic scheduling for optimal pathogen elimination during high-risk periods or seasonal illness outbreaks.
