Lulu Lotus is a children's book author and illustrator from Canada. Her books focus on teaching children the importance of being kind to each other and animals. They do not -so far- teach children how to whistle with their noses.
Nose whistling is skill that Ms. Lotus has carefully honed like a blade since childhood. She used it while growing up to play pranks on her teachers. From the above video, you can see why: when she whistles, there is no change in her facial expressions. It's a silent, ninja-like art.
Guinness World Records has declared her nose whistle, which measures at 44.1 decibels, the loudest in the world. That is approximately as loud as a bird call.
-via Born in Space