Additional Details ------------------------------ Bullet point: S3 face masks are designed with healthy skin in mind with exclusive S3 features that provide skin soothing benefits. S3 offers ASTM Level 2 protection and exceptional breathing efficiency with its exclusive Breath EZ filter. S3's Quad-Fold design provides 15% more breathing volume while the revolutionary CoolSilk lint-free inner layer offers a cool and long-lasting soft feeling without fluffy irritation.