Abstract: Employee #1 was checking a filter drum in an air wash room. He turned off the vacuum arms of the drum filter before entering the filter housing/plenum, which measured about 18 ft long by 12 ft wide by 8 ft tall. The rotating condenser, an open-ended filter facing the open end of the filter drum and rotating about one revolution in 8 minutes, is not shut down during the normal cleaning of the drum filter. The condenser is about 4 ft in diameter with two crossbraces that form spokes like those on a wheel, and is supported by a T-shaped support brace. The access passageway is 3 ft wide with a 10 in. vacuum line in the center of the passageway. Employee #1 reached into the condenser while it was turning and was pinned between the moving crossbraces and the T-shaped support. He died from a crushed neck, chest, abdomen and colon, fractured ribs, and internal bleeding. There was no guard on the rotating end of the condenser.