Presenting the Corsi Rosenthal Box: The Best DIY Air Purifier for Transforming Indoor Air What's the Corsi Rosenthal box, and how does it work? The answer is simple: It's the best solution to boost indoor air quality simply and affordably. This comprehensive guide will explain everything you want to know... Presenting the Corsi Rosenthal Box: The Best DIY Air Purifier for Transforming Indoor Air What's the Corsi Rosenthal box, and how does it work? The answer is simple: It's the best solution to boost indoor air quality simply and affordably. This comprehensive guide will explain everything you want to know...