Ideal mask for medical examinations and for going back to school. It is breathable and comfortable.
50 masks per box / 12 boxes per case
Suitable for children aged 5-12
Complies with ASTM 2100-19 Level 1: bacteria filtration efficiency ≥95%, particle filtration efficiency ≥ 95%, differential pressure mm H2O / cm2 <5.0, flammability classification Class 1, resistance to penetration of synthetic blood: 80 mmHg.