Nonwoven Multi-layer Design Spunbond + Meltblown +Spunbond Unique material for maximum fluid resistance/protection against body fluids Ultra-Sonic Weld ensures strongest constructed mask, eliminates holes and defects Adjustable Nose Piece for better fit Fluid Resistant Flammability class I Bacterial Filtration Efficiency: 99.7% Particle Filtration Efficiency: 98.5% Particle size: 0.1 μm
