 Donald Dimion in Pennsylvania wrote, We were so surprised at how quickly the EasyBreathe improved our air quality. The humidity is under control now and the dampness has left the basement along with the mold and mildew smells. Excellent product and it works just as good as Gary Sullivan said it would. Call 866-822-7328 or visit e-the-letter-z-breathe.com. Hey, it's Derek over at Fusilo Subaru Watertown.