A few minutes of huffing later, she opened the door.
Movement that requires a faster pace and more effort and gets you huffing and puffing to catch your breath is anaerobic.
If you have a tall cat tree, consider moving it into the room where the dog crate is so the cat gets used to all the sounds the dog makes (i.e. snoring, huffing, barking, moving in the crate).
Inhalants - Commonly known as huffing, teens who use inhalants get high off the fumes from household cleaners, spray paint, and other substances.
While the sole down stairs room would have saved considerable huffing and puffing, Dean feared the smaller quarters and especially the bed would not adequately accommodate the woman's substantial mass.