Biohazard Bags LD Red Infectious Waste Liners 1.5 Mil Thick 24" x 24" 200 Per Case 7 - 10 Gallon Capacity, Bilingual, 200 Per Case Low Density Red Disposable Bags. Biohazard Bags are Both HDPE as well as LDPE biohazard waste liners. Biohazard Bags are strong and star sealed at the bottom for more durability and protection. Biohazard Bags Printed with biohazard symbol and text in English and Spanish.