Air and surface treatment system

An air treatment system comprising:

• an air purification assembly comprising one or more air purification modules in an upstream to downstream order, an air intake, a prefilter, a blower operable to flow air through the purification assembly at 250 m3/hr, an Ultra-Low Particulate Air filter (ULPA) or a High-Efficiency Particulate Absorbing (HEPA) filter having filtration efficiency at 99.9995% for particles of diameter between 0.1-0.2 micron, a short-wavelength Ultraviolet (UVC) Irradiation unit operable at 24 W (watts) to produce UV light at 254 nm wavelength, and a carbon filter;
• and
• an aerosol source configured to release a conditioning liquid in aerosol form into the purified air,
• wherein when operating in a 170 square meters (m2) test room, at the stated operatable values and the blower operating to flow air through the purification system at 250 m3/hr, within 12 hours the system reduces 0.5 micron diameter particles from a concentration of about 3.5×106 particles per m3 to less than about a third of the ISO-8 clean room standard of 2.45×106 particles/m3 and 5 micron diameter particles from a concentration of about 120×103 particles per m3 to less than about a half of the ISO-8 clean room standard of 29×103 particles/m3.