This is a silicone version of the half mask 756. Silicone has a wide range of applications due to its anti-allergic properties, especially in contact with skin prone to sweating or rashes. Additionally, the silicone mask is soft and provides the highest comfort for the user during long periods of use. (Filter types 755 and 756 are compatible). The mask is designed for users of the half mask 756 who do not wish to change the type of filters they already use and are accustomed to their connection method, while seeking additional comfort during their work.