See How EZ Breathe Works:
The EZ Breathe™ ventilation unit addresses that final elusive aspect of basement waterproofing by controlling the relative humidity levels in the basement, expelling those damaging vapours directly outside your home. The EZ Breathe™ resolves this issue in an economical, whisper quiet and maintenance free way: all the while ventilating the rest of your home of harmful VOC’s and indoor air pollutants, providing you with a healthier…