My Grandpa was a man who believed in his ability to take care of himself despite his age, and he consistently insisted we let him stay at his home and not force him to come to live with us, my parents didn’t like that since he lived alone in a pressing home on the other side of the city. Still, we had learned it was pointless to push the subject. We let him be and only went to visit then leave for our house, then one afternoon, we were having lunch when mum got a call from grandpa. He wasn’t feeling well and had gone to the hospital due to chest concerns and headaches. When my parents got to the hospital, the doctor advised them to check the air quality in the house, then the doctor suspected the AC device in the home was causing my grandpa to develop health complications. Mom drove my grandpa straight to our home despite his protests as dad diagnosed the AC device in his home, dad called an AC maintenance and servicing supplier on the way to meet him there and check out the state of the a/c. The doctor had made the right diagnosis. The AC device in the home was at fault because there was a musty and foul stink. It seemed my grandpa hadn’t asked for duct cleaning in a long time. There was mold, dust and mildew in the air vents producing the stink and so many spores! Breathing in the harmful spores had caused my grandpa to develop health complications. Dad authorized the AC worker to clean out the air ducts in the home and service the a/c. He also got some information about AC maintenance plans for my grandpa.