This 3M Versaflo case includes 20 economy hoods in size medium/large. The hoods are white and designed to provide personal protection in a variety of industries. The product model is S-403L-20 and the brand is 3M. The hoods are suitable for use with the Versaflo powered air purifying respirator system. This case is perfect for businesses in need of personal protective equipment (PPE) for their employees.