Before: Photos show attached dust on the blower wheel and duct surfaces, along with pale deposits recorded as suspect growth during inspection. Process: We opened the air handler for component cleaning and used micro agitation whips at protected supply openings. Agitation loosened buildup for vacuum-truck collection under negative suction. The blue tape and covers protected the home and concentrated suction at the working openings. After: The selected photos show exposed air-handler lining and cleaned flex-duct and ductboard surfaces. Existing corrosion and yellow/brown staining remain distinct from the loose buildup removed during cleaning.