Reusable Face Mask Our reusable face masks are available in black or white and offer four layers of ultra protection with a natural activated carbon filter. These reusable face masks have a BFE (Bacterial Filtration Efficiency) of 99% that exceeds P2 respirator requirements and are soft and comfortable to wear. • Reusable Face Mask (non fluid resistant) • BFE 99% (Bacterial Filtration Efficiency) • BFE exceeds P2 Respirator requirements • For maximum protection replace after 2 weeks of continuous daily use • PFE above 97% (Particle Filtration Efficiency) • 4 Layers Ultra Protection • Natural Activated Carbon Filter • Washable, dip mask in boiling water for 3 to 5 minutes and air dry • Soft and comfortable to wear • Packed in individual polybags