It’s now confirmed that I have a good deal to learn when it comes to Heating and A/C plus indoor air pollen levels. But I’m making strides, then still, I was pretty ignorant about both those topics for a long time, but the system that there could be indoor air pollution was the furthest thing from our mind, however i mean we lived in a good lake house with super residential Heating and A/C, then plus we lived way out in the country. The air here is about as pure as anywhere else on Earth maybe, then but the lack of factories are highways plus all that smoke doesn’t mean that there aren’t indoor air contaminants lingering in the house. Second, I thought the Heating and A/C air filter was built to unconnect whatever suspended contaminants there were in the air. I mean, when I change the air filter it sure looks dirty. But that is also what it was designed to do. Those cheap air filters I typically used were made to trap anything that could hurt the Heating and A/C equipment. It had nothing to do with cleaning the air or protecting our health, however for that I would need a HEPA filter, and once I l received all about the Heating and A/C plus indoor air pollen levels, that is exactly what I put in. But we also wanted to get the undoubtedly best indoor air pollen levels we could. The Heating and A/C company told us that air purification was the only way to do it. So now we have a whole lake lake house air purification plan plus it is just remarkable. The air is clean plus smells really fresh. And we have the best indoor air pollen levels cash can buy.