Before: We documented dust on the blower wheel and heavy deposits and loose debris in the return cavity. Process: Micro agitation whips loosened attached dust at supply openings while vacuum collection placed the air path under negative suction. We also accessed the return opening for direct source-removal vacuuming. After: Photos show cleaned blower housing and accessible air-handler surfaces. Existing cabinet and return-lining discoloration, corrosion, and damaged insulation on crossing lines were documented separately from the buildup removed. Cleaning does not repair these material conditions.