The level at which it is a concern might be skewed, but if you’ve ever sat in a room with “thick” air, trying to concentrate you know it is a real thing and jus

The level at which it is a concern might be skewed, but if you’ve ever sat in a room with “thick” air, trying to concentrate you know it is a real thing and just opening a window and a door for a few minutes to create a draft helps tremendously.