The Sperian Medium Full Face Mask Respirator protects you while performing construction, painting, sanding, mold remediation, chemical cleaning, extermination or other airbourne contaminents and chemical vapors. Features a five strap suspension for a balanced, comfortable fit. Panoramic lens for unobstructed peripheral vision, eliminating blind spots and tunnel vision that can lead to trips, slips and falls. Works with 3.5 Round Filter Cartridges (NOT INCLUDED) • Perfect for Sanding, Painting, Chemical Application and Mold Remediation • Cushioned Mounts Make Cleaning Comfortable yet Safe. 5 Strap Suspension for a Perfect Fit