AirTamer^® emits negative ions from the little black brush that you see at the top of the unit. Over 2 million negative ions are emitted from that brush every second. These negative ions attach themselves to air particles like viruses, allergens, pollution, etc. in the air and negatively charge those  particles. Those negatively charged particles will then be naturally attracted to positively charged surfaces around you (e.g. a table, chair, window, clothes, etc.), rather than continuing their way towards your breathing passage where they can make you sick. As a result, AirTamer^® reduces the probability that you will inhale these bad particles and become ill.