● With a sturdy 3-layer structure, it blocks dust and pollen. This 3-layer non-woven mask is useful for protection against colds, pollen, house dust, and PM2.5. It has a center wire at the mouth, creating space for easy breathing, and an omega structure. It uses approximately 6mm wide, extra-soft ear loops that are gentle on the ears and less likely to cause pain. It uses BFE, PFE, and VFE cut filters. 65 masks in a small size (approximately 145mm x approximately 95mm) are included.