Does the BioPak have an exposed breathing bag?
No. The BioPak utilizes a flexible diaphragm housed within an injection-molded housing to provide a robust breathing chamber that is resistant to externally induced damage and punctures. Other breathing respirators employ the use of a breathing bag that is suspended within the housing of the respirator itself. Should the respirator housing become dislodged the breathing bag will be totally exposed to externally generated dangers and hazards.