This North 7700 series half-mask respirator is the industry standard for comfort, fit, and reliability. It is made of soft and non-allergenic high-quality silicone and features a comfortable silicone facial seal. It is extremely durable, and distortion-resistant to ensure a better fit. Its lightweight, low-profile design is the most popular amongst users. Easy to clean, it can be adapted into a supplied-air respirator. Accessories and replacement parts are available.