The Polish MP4 Gas Mask With 5 Fil model BRK-M4607, brought to you by Miscellaneous Knives, provides reliable respiratory protection in hazardous environments. This genuine Polish military surplus mask offers a secure fit and clear visibility, ensuring effective filtration against a range of contaminants when used with the included 5-layer filter. Constructed for durability and performance, this mask is a valuable addition to any preparedness kit or collection, promising safety and peace of mind in unpredictable situations. Perfect for collectors, survivalists, or anyone needing proven protection.