Suitable for children from 2 to 14 years old. Unmatched breathability and comfort. Pleat design that prevents build-up of fluids. Filtering efficiency of bacteria greater than 95% (BFE). Assembly made by ultrasonic welding. Flexible and adjustable ear clip and nasal strap. Hypoallergenic. Latex and fiberglass free. 15.5 x 9.5 cm. Box of 50. White.