STS 40302 P3R Particle Filters [Pair]

For use with STS half and non-powered full face masks.

Filters 99.95% of particulates.

Mechanical filtration doesn't lose filtration efficiency as it get full or wet.

Filters are water and oil repellent.

Hard casing protects filter material from damage.

Two required per mask.

Dimensions ; 77mm (dia) x 21mm (h), Weight 22g