Willson MX-PF F950 Half Mask RespiratorThe Sperian MX/PF F950 is a modern half-face respirator which is built and tested to the European Standard EN140. The MX/PF F950 has a high quality four point harness, in aid of stability on the face, while allowing scope for personal adjustment. Twin filters are used, these improve the weight distribution of the respirator and provide very low levels of breathing resistance.The MX/PF F950 is moulded from high quality silicone which is extremely comfortable on the face, silicone being the traditional material for top of the range models. Silicone is very durable and has a long service life, it is very easy to decontaminate and is stable in use across a wide range of temperatures making it ideal for use in a wide range of industries.The MX/PF F950 is unique in having three face seals instead of one, reducing the risk of inward leakage to the absolute minimum. As a result it is able to fit a wide range of face sizes and geometries.