1.Methylene blue:11ml/0.1g 2. quadroxide :700 3.benzene: 400 4.grain: 400 Activated Carbon Air Purification: This product select raw materials, the use of advanced processing technology is refined. Look for the black column. Have well-developed porosity, large surface area, adsorption ability, high mechanical strength, easy to repeated regeneration. Widely used in textile, foam,plastic fiber, ...