Dyson Pure Cool Me Personal Purifying Fan
As a severe dust allergy suffer, having an air purifier in my stuffy apartment is a total must. I also live in an old place that doesn't have an air conditioner, and this Dyson Pure Cool Me Personal Purifying Fan ($328, originally $350) has been a total life saver for me. The fan is made with a built-in HEPA filter that purifies the air it uses to cool you. You can read my full review here.