Coal mines existed plenty some years back! Most people who worked in the mines had little to no choice when it came to air quality, but when they went home, their standards for indoor air quality were low, and they could scrub the soot off their skin but not the one in their lungs.
My Grandpa Gerald was undoubtedly young when his father worked in the mines, he later died of a respiratory-related ailment.
When my Grandpa was old enough to work, he made sure he found work far from the mines. He later got into the Heating and Air Conditioning business! Good indoor air quality was vital to him. My mother followed in his footsteps and became an Heating and Air Conditioning professional… It became a family tradition that every property among his five children had a whole-dwelling media air cleaner. They all had a smart Heating and Air Conditioning with suitable air purification help and a odd media air cleaner, all upon their father’s insistence. The reason he got into the dwelling repair contractor was so that he could ensure air purification through Heating and Air Conditioning device in as more than 2 homes as he could. I also have an uncle who is an Heating and Air Conditioning professional, and together with my mother, they took over the family contractor after my Grandpa retired, then everybody with Gerald as a family relation can comfortably replace an air filter; my friend and I have come to refer to it as a right of passage. Gerald will randomly call to ask about the last time you had duct cleaning done in your home. The best part is that they visit all of us often, and my friend and I all fight about who will host him and his Grandmother in our home. They say it’s a exhausting habit, but deep down, my friend and I know they cherish it.