€¢ Molded for safety, comfort and natural fit. €¢ Deep chin cup with silicone for a comfortable seal and easy exhaling. €¢ 2-Exhalation valves. €¢ 2-Filter Cups. €¢ Durable adjustable elastic headband. >> TWXpert® Respirator Mask With Twin Filter Cartridges is flexible and lightweight. Great for filtering small dusts, mists, metallic fumes, spray paint, chemicals, and small flying particles.