3M Versaflo S-Series Small/Medium White Hood with Integrated Head Suspension is made of polypropylene coated nonwoven polypropylene to resist heat and has a pattern that reduces the potential for air whistling in the user's ears to have better communication and comfort. Hood assembly is used in the field of facility maintenance, machine operations, painting and sanding. It is also recommended to use in the industries such as automotive, food and beverage manufacturing, manufacturing, metal production and fabrication, military maintenance, repair and operation, pharmaceutical, transportation and more. It is compatible with BT-20S, BT20L, BT-30 or BT-40 breathing tubes. It is designed to use with certain powered air purifying and supplied air respirator systems to deliver clean air to the breathing zone of the user.