The Sana 25 Helmet Mounted Ear Defenders provide a substantial level of attenuation levels ranging from 25dB to 34dB. These suit a wide variety of industrial environments from light to extremely high noise levels. These Sana 25 defenders are comfortable and effective as well as being fully compatible with the existing range of Centurion's PPE. They feature a stylish matt black cup design with gloss features, and the steel arms are adjustable to ensure the correct fit quickly and easily. They have soft wide cushions for maximum comfort, and are ideal for professional users.