My children could not stop talking about how delicious the hotdogs and the new hotdog stand down the street was. The dogs were wagging their tails, ready to go for a walk, the six of us decided to go out for a day snack while walking the pets. The kids were right, and the hotdogs were so delicious that I had to go for a second. My partner got into a conversation with the owner of the stand. He mentioned something to do with air quality systems. I immediately asked him if he knew a sound air purification method because our indoor air condition has not been what it used to be for years since we brought in the pets. We also had to replace our air filter more often. He asked us about the last time we had our air duct inspected, and I told him that we usually inspected the vents to see which parts needed sealing. He told us that we needed to consider duct cleaning for our air purification to work efficiently, especially now that we had pets. We talked for a while, and it was clear that she knew so much about HVAC equipment. He told us that he once worked as an HVAC worker for a home repair provider, although he was now retired. The kids strolled off to the park with the dogs while we discussed heat and a/c systems. The HVAC professional told us about smart HVAC, how it works, and how it saves energy. With many children and more than one pet, we needed all the savings we could get. She also told us we could install a whole-home air purification method alongside our HVAC system. Such a method would ensure that air purification was okay, increasing indoor comfort.