The troposphere is the lowest layer of Earth's atmosphere thats where 99% of gases are. It extends from Earth's surface to an average height of about 12 kilometers.
In reality, 10 meters is almost no difference.
most sensors are under 10m.
High risers usually have their own air-conditioning system with pressure independent on outside conditions, windows can't be open. Unless you put it on the roof it can't be used anyway.
