The 3M™ 6035 filter is trapezoidal in shape and does not obstruct the field of view. The filter material is designed to make it as easy as possible to inhale and exhale air. The filters are attached to 3M™ 6000, 7500 series half masks and 3M™ 6000, 7000 full face masks that have the 3M™ Bayonet filter attachment system. Weight approx. 70 g.