Mycotoxins are produced by:
An ASCS is cleaning an exhaust system that has a fan located adjacent to an outside air intake. Which of the following is a potential source of cross-contamination?
According to ACR, The NADCA Standard, all portions of each coil assembly should be cleaned. In order to determine which type of cleaning is required, the ASCS should:
When conducting an inspection of an HVAC system with a spray humidifier installed, what should the ASCS look for?
According to ACR, The NADCA Standard, which of the following is part of the HVAC system inspection?
Which of the following is NOT considered a mechanical means of agitating the inside of ductwork?