Alpha Pro Tech Ltd is in the business of protecting people, products and environments. It is developing, manufacturing and marketing a line of disposable protective apparel and infection control products for the cleanroom, industrial, pharmaceutical, medical and dental markets. It also manufacture a line of building supply construction weatherization products that are sold under the Alpha Pro Tech brand name. The Company operates through two business segments: Building Supply and Disposable Protective Apparel. Key revenue is generated from Building Supply: consisting of a line of construction supply weatherization products. The construction supply weatherization products consist of housewrap and synthetic roof underlayment and synthetic roof underlayment accessories.