The ChiSip KN95 Foldable Protective Face Masks come in a sealed box containing 20 pieces. These disposable masks are designed to provide a secure fit for optimal protection against airborne particles. Made in China, the ChiSip KN95 model ensures high-quality filtration and is suitable for various applications in medical, lab, and industrial settings. With an expiration date of 3/27, these protective face masks offer reliable performance for extended periods. Ideal for individuals seeking reliable and efficient facial protection, these masks are a convenient and effective option for staying safe in challenging environments.