I will confess that I am pretty nuts about my indoor air quality; They say the indoor air is 2 to 5 times more polluted than the outside air, and i live in Lowell, Massachusetts.
That means the outside is always chilly plus my friend and I have to shut our windows with the heater going on high.
That means the same air is moving throughout the house. I don’t want to breathe in dirt, dust, plus hair most of the year. I have looked into Lowell indoor air quality device plus basically purchased everything. I have UV lights in my cooling system plus I use a humidifier with the heater. This ensures that the air is clean when the A/C is running plus the air is moist when the heater is working. I also have an air cleaner that is installed in the return ducts! As the Heating plus A/C opiates, the air cleaner is used to clean the air; No dust or odors when an air purification system is working. I also have invested in high quality HEPA filters. They catch more dust than the respected air filter. It is more high-priced plus I change them every three weeks, but I feel it is worth it, finally I do official HVAC duct cleaning just to make sure there is not anything stuck up in here that is gross. I feel it is necessary when I use my heater as often as I do. I spend a lot on my Heating plus A/C device but I rely on it 24/7, so you get what you pay for.