Alpha Pro Tech, Ltd., together with its subsidiaries, develops, manufactures, and markets a range of disposable protective apparel and infection control products in the United States and internationally. The company operates through two business segments, Building Supply and Disposable Protective Apparel. The Building Supply segment offers construction supply weatherization products, such as housewraps; housewrap accessories, including window and door flashing, and seam tapes; synthetic roof underlayment products; synthetic roof underlayment accessories comprising self-adhered roof underlayments; and other woven materials. The Disposable Protective Apparel segment provides shoe covers, bouffant caps, coveralls, frocks, lab coats, and gowns and hoods, as well as face masks and face shields.