“The manufacturer tells us that unlike conventional, passive, filtration-based air purifiers, ActivePure works immediately and does not require capture or exposure time. “We installed over twice what we were told were necessary, three in the overhead air ducts, three stand-alones for the sides of the bar, and one in each of the rest rooms.” Harvey Meissner, President and General Manager, says “Over one million ActivePure systems are currently in use to help safeguard front-line workers in hospitals such as the Cleveland Clinic and in government buildings, including the Texas State Capitol. The Hidden Door has installed ActivePure Technology that the manufacturer claims eliminates over 99.9% of the airborne virus that causes COVID 19.