This story on the Today Show really gave me an eye-opener one morning about box dryers - I was completely unaware this is how some groomers dry dogs. I just don't trust the concept. When I asked the groomer we were going to if they used box dryers, she became very defensive.
That conversation and the overall feeling I got from watching her in action (she was quite impatient with my dog and other dogs) gave me the creeps and I didn't go back.
When I interviewed my next and current groomer, the owner of Yuppy Puppy, she answered all of my questions thoroughly and kindly - you can tell she loves dogs. Yuppy Puppy does not use box dryers for the same reason I was worried - because they are dangerous. I don't like the idea of my poor little Shakespeare being locked in a box, unable to escape.
The article also provides helpful guidelines for selecting a groomer and pet care. Please note: it is an unregulated industry.
Box Dryer Article from Today Show