Interesting how the nose bit doesn't fully wrap around the nostril. Is that normal in dogs?
Yes, it is. They release extra air through the slits in the side of the nose to prevent dilution of scents entering the nostrils, sharpening smell focus. [
1] It's why, even from great distances, they can smell a bag of drugs... hidden inside of an apple... that is in a basket full of apples... in a large room filled with other baskets of apples... with, um, skin cancer. *
*We are legally obliged to say here that apples cannot actually get cancer.