PREMIUM QUALITY: Reusable 100% polyester exterior and 100% cotton interior fabric with a pocket for a filter (filters sold separately). Recommended for teens and adults. NON-MEDICAL. Executive Standard: FZ/T 73049-2014. Earloops are made from 55% nylon and 45% elastane, soft fabric, and feature adjustable rubber stoppers.
CARE INSTRUCTIONS: Hand washing with detergent is recommended. Machine wash cold.
Made in China