http://www.germshieldtreatandprotectprogram.totalductcleaning.com/High-Rise_Multi-Residential.html
Microbes such as bacteria and mold can build a small city in its building at 24. hours. The germs can last 24-48 hours on surfaces, during which time things like bacteria reproduce exponentially.
A single cell can become more than 8 million cells in less than 24 hours. The microbes living in the elevator buttons, door handles, mailboxes around the pool, bathrooms, equipment, toilets toilet, faucets, soap dispensers and paper towels, showers, computers, telephones, file cabinets, chairs, halls Laundry and dry cleaning and door controls, meters, switches, smart card machines, etc.Total Duct Cleaning