Denzel Washington on screen and stage. Denzel Washington is an American actor who made his feature film debut in Carbon Copy (1981).[1] In 1982, Washington made his first appearance in the medical drama St. Elsewhere as Dr. Philip Chandler.
Report Abuse. Sprinklers do not detect smoke. Some operate by a fuse that melts, from the heat of a fire, to release water, others operate by a sudden drop in water or air pressure in the pipe which is controlled by a alarm system, when activated.
LIMITATION OF FILTERS Chemical Filters Chemical filters are used on respirators to help remove and lower worker exposures to harmful gases and vapours in the workplace. There are several types of chemical filters: ï· Organic vapour. ï· Inorganic vapour.