The D200E offers a patented and burn-tested egress feature that complies with exiting requirements of the building codes.The FireFighter D200E Series is the only protective fire curtain assembly on the market with a 20-minute rating UL10B and UL10C without hose stream, up to 3-hour UL 10D rating, UL 1784 smoke and draft rating and integral conforming swing egress door(s). “The First Responder” is truly a first – going beyond where others leave off!