My parents were typically honestly strict about the air quality in our loft when us teenagers were growing up.
Eventually I l gained this was because our younger sibling had dire pollen irritations. They would typically be decreasing out the air filters with those extravagant high MERV rated air filters that were designed for people with pollen irritations. Eventually it became our chore to change all the air filters in the house. There was an media air cleaner in every single room and I would have to change all those air filters. There was a time when I thought it was overkill until I saw our sibling suffer from some honestly exhausting dust sensitivity attacks! He never was able to go outside much and he had to be homeschooled. He became rather depressed because of his condition, but I started spending our time with him. I even introduced our sibling to a lot of our friends and they would hang out with him all the time. My parents appreciated the fact that I was looking out for our sibling like that. He was a lot more ecstatic because of it and this made myself and others ecstatic. The people I was with and I never honestly fought at all, every one of us legitimately got along honestly well. I would say for a lot of siblings this is not the case. He typically tells myself and others these days how much he prefers myself and others looking out for him and that he entirely wouldn’t have any friends if it weren’t for me. I typically shrug it off like there’s nothing to it, but I honestly care about it when he tells myself and others things like that.