Edit: Context behind this question is because my parents always tell me to shut the windows all the way and I kinda feel like I’m suffocating… literally… (it’s Winter here)
Like I just struggle to breathe with windows closed…
So I’m just curious, how do y’all not suffocate while trying to keep house warm and spend less on heating?


I live in the Pacific Northwest, which means temperatures don’t fluctuate too much into extremes.
I personally like having the window cracked at night in the winter. I like to have fresh air, even if it’s cold. I feel sick if a room feels too stuffy.
Spring, summer, and fall the windows are definitely open at least at night if not during a larger part of the day. If it’s ~15-25C outside, I’ll usually have at least one window open. More likely two in the 20s. I just don’t tolerate heat well, so I will close my windows during the heat of the day when it approaches 30s.
Otherwise they’re only closed if outside is gross (smoke, people talking, hazy) or if I want total silence.