Due to my allergy and mild OCD, I am constantly dusting and cleaning my house.
I was always ordering a new air filter until the local contractor who mainly delivered them told me to consider buying a washable filter that I could clean instead of replacing it to save some money.
From that day, we forged a friendship and exchanged contacts when I needed home services. When it was clear that the indoor air quality was not improving, I called him so that he could give me professional advice on how to help with indoor comfort. Since he was well aware of my OCD tendencies by then, he suggested I buy an air purification system. He sent me links to different air quality systems he had chosen for me to narrow down to one. Before I was even halfway through, he called me. He gave me an option that I had not considered before. He told me to have my ductwork checked and possibly have duct cleaning. Luckily, when I called the HVAC company, he was the HVAC technician assigned to the task. After thoroughly studying the HVAC unit, he said it needed duct sealing because some ducts had leaks. He also advised me to buy a new thermostat because after inspecting the one I had, he found it faulty and too old to repair successfully. After the HVAC maintenance, he sent me links to various websites to find one I liked and was within my budget. The HVAC professional also told me that the crucial tip that I needed in selecting one was choosing the one that uses the new innovative technology.