P920 – ABEK1 Gas Filter Special Thread Connection

P920 is a gas filter ABEK type in class 1, equipped with a special thread for pair use only. It protects from organic and inorganic acid gases and vapours, sulphur dioxide, ammonia and its derivatives where the boiling point is higher than 65°C. Can be used only with P410 Half Mask. , P920  Unit of Sale is  4  units. Please order 2 Units of Sale if you require  8