Properly Performed an inspection on a whole home system. Checked the filter, checked blower wheels for built up dirt/dust, took delta Ts, checked drain drain line, tested safety switch, tested all electrical components, tightened all electrical connections, took running volts/amps, monitored systems operations. There is some microbial growth in the evaporator coil, in the supply plenum. The ductworks are dusty. Potentially clogged up drain line. No ss1 safety switch. No wet safety switch. Gave options to address the above findings.