Alpha Pro Tech Ltd. engages in the business of protecting people, products and environment. It develops, manufactures and markets disposable and limited use protective apparel products for the industries, clean room, medical and dental markets. The company operates through the Disposable Protective Apparel and Building Supply segments. The Disposable Protective Apparel segment includes many different styles of disposable products, such as shoe covers, bouffant caps, gowns, coveralls, lab coats, frocks and other miscellaneous products. The Building Supply segment consists of a line of construction supply weatherization products, namely house wrap and synthetic roof underlayment. The company was founded in 1983 and is headquartered in Markham, Canada.