Characteristics: 1. Shengbao FF series Full-face respirators are newly designed to have excellent airtight ability, more comfortable and long lasting protection. 2. Made by Non-Toxic rubber, soft and durable. Comfortable five-strap harness with roller buckles. Built-in speech diaphragm permits clear communication. 3. Shengbao FF series Full-face respirators offer flexible and freedom for working in variety of industrial environments and temperatures. Wide polycarbonate lens features a dual coating: scratch resistant on the outside, anti-fog on the inside. 4. Shengbao FF series Full-face respirators offer various configurations available depending on the working environment for the best suit.