Best Air Purifiers for College

I moved in with my parents after college (as many of us are doing now a days) and found that the combination of my labrador and their cat to be murder on my sinuses.

I have some moderate dust mite allergies and, being a college student with roommates, I this was the best option to contol the dust (the house certainly wasn't going to be cleaned regularly!) The GE unit was very noisy.