My children could not stop talking about how delicious the hotdogs and the new hotdog stand down the street were, and the dogs were wagging their tails, ready to go for a walk. We decided to go out for an afternoon snack while walking the dogs. The kids were right, and the hotdogs were so delicious that I had to go for a minute. 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 of a sound air purification idea because our indoor air quality has not been what it used to be for years since we brought in the dogs. We also had to replace our air filter more often. He asked us about the last time we had our air duct checked, and I told him that we usually checked the vents to see which parts needed sealing. He told us that we needed to consider duct cleaning for our air purification help to work efficiently, especially now that we had pets. We talked for a while, and it was clear that he knew so much about A/C equipment. He told us that he once worked as an A/C serviceman for a home repair provider, even though he was now retired. The kids wandered off to the park with the dogs while we discussed heat and a/c systems. The A/C professional told us about smart HVAC, how it works, and how it saves energy, but with three children and more than one dog, we needed all the savings we could get. He also told us we could install a whole-apartment air purification idea alongside our A/C system, such an idea would ensure that air purification was okay, increasing indoor comfort.