Hot Shield USA Disposable Partical Mask,HS-2 Mask Single
Hot Shield Single DPM Replacement Filter for the HS-2. This filter is inserted into the integral filter pocket of the HS-2.
Features: Inexpensive Activated Carbon sandwiched by cotton fiber. Filters down to 3 microns.
Advantage: In a pinch you can install just about any brand of disposable filter with an exhalation valve. Nearly all are manufactured in the same shape. Just check the location of the valve. In this way, your are not committed to buying an expensive filter from only one company for the life of the mask!
Materials: Activated carbon sandwiched by cotton media filtration cloth with exhalation valve. Supplied with flimsy rubber straps you can tear off prior to installing in the filter pocket of the HS-2.
Size: Standard disposable filter shape
Use: Gives some structure to the HS-2, as well as providing an extra measure of respiratory relief, by physically blocking much of the airborne particulate common to all wildfires.
Limitations: When filter becomes difficult to breathe through or filter becomes damaged, simply throw away and replace with new filter. This filter doesn't block fire gases, like carbon monoxide, so don't assume you can advance into the fire further. Use your head, common sense and training.