Can dogs smell withouth sniffing?

Dogs may get as much information from their olfactory sense as we do from our eyes. Smell is a big deal to a dog.

Their noses are wet, and convoluted which makes me imagine the molecules only have to land on that part in order for them to detect smell. Certainly, they sniff as well, but I figure that is just when they want to get a closer look.

Before we get cute, I am not talking about dogs who need a bath and smell bad.