The article says indoor VOCs, musty odors and visible mold can signal air-quality problems in offices and recommends professional duct sanitizing to reduce respiratory irritation and absenteeism. It also argues that inspection, disinfection and maintenance can help remove pathogens and contaminants from HVAC systems.
Source: qbclean. Original: https://www.qbclean.com/does-your-seattle-office-air-need-professional-sanitizing/
