No. The BUFF® Filter Mask and the BUFF® Filter Tube are certified according to CWA 17553:2020 and UNE 0065:2020. However, the filters meet the standards for bacterial filtration efficiency and air permeability type I and II of the EN14683:2019 standard for surgical masks. Test report number IN-00967 / 2020-1 issued by the accredited laboratory Centro Tecnológico Leitat - Acondicionamiento Tarrasense, designated by an EU country to evaluate the conformity assessment of certain products before their commercialization. Compliance with the referenced performance requirements of the harmonized European standard EN14683:2019 for medical masks ensures that a quality standard is met.