This set contains 20 x 50 IIR type surgical face masks for single use. Mouth-nose masks of this type are very suitable for use in healthcare, home care or district nursing. The air you exhale is filtered, protecting your environment. A medical mouth mask with type IIR is also liquid-resistant and splash-resistant. This type has a BFE of >98%. The higher this percentage, the better a patient is protected. These 3-layer surgical masks comply with EN14683 type IIR and have CE certification. The ear elastics and integrated nose arch provide extra comfort and a good fit. The material is also lint-free, hypoallergenic, fiberglass and latex-free, and skin-friendly.