Adding to this: - UV is effective only when it directly hits a microbial cell the lamps must be cleaned regularly to remove any dust and dirt that may block i

Adding to this: - UV is effective only when it directly hits a microbial cell the lamps must be cleaned regularly to remove any dust and dirt that may block its germicidal effectiveness (ethanol approx every 2 weeks) - UV lamps used in biological safety cabinets use much more power than a battery powered micro-lamp (so they're much more effective), yet do not disinfect the spill area under the directly exposed surface, a favorite hideout for fungal spores how can a couple of balls scattered throughout the house actually have an effect ? - skin cancer ??