Baby Huffing?

Baby A huffs wet wipes. I have no idea why. It's the strangest thing. She holds it up to her nose and sniffs repeatedly and deeply. It's so odd. After a while, 30 minutes or so, she'll shred it and stuff the pieces in between the couch cushions. That I feel is a much more normal baby activity. She stuffs all kinds of things in between the cushions. Magnets, puzzle pieces, paper towel pieces, etc. That's just where things go. Fine. But huffing the baby wipes for 20 or 30 minutes first is just a little odd. In my humble opinion anyway.