ASTM Level 3 mask ideal for oral exams of high-risk patients and procedures involving high levels of spray, spatter, moisture and airborne particles. Perfect for ultrasonic scalers, high-speed aerosols, air polishers and oral surgeries.Smooth, stretchy, latex-free, ultrasonically sealed earloops prevent irritation and allow easy removal with a lower risk of self-contamination. Adjustable nosepiece provides a comfortable, personalized fit. Shingle pleat design prevents fluid pooling and cross-contamination. Non-woven layers will not lint, tear or shred.