The article presents the filtration efficiency of filtering half mask FFP2 and FFP3 against nanoparticles of reduced graphene oxide. Respiratory protective devices were selected from among many commonly available on the market. Penetration measurements were carried out with a 0.02% water suspension of reduced graphene oxide at a nanoaerosol flow of 95 l/min. The penetration value was read for particles up to 100 nm in size. The presented research results show that the currently used classification of filtering respirators according to the EN 149:2001+A1:2009 standard, based on standard test aerosols, does not reflect the protection against reduced graphene oxide nanoaerosols. The penetration values against the graphene nanoparticles of the tested filtering half masks exceeded the admissible range of penetration according to the above-mentioned standard for most of the samples. Therefore, it is necessary to develop guidelines for the selection of respiratory protective equipment intended for use in the presence of nanoparticles, including reduced graphene oxide.

DOI: 10.54215/BP.2023.08.16.Makowski  

Assessment of the ability to perform work is a very important element in the aspect of returning to professional life of a person after an illness or accident or a person with a disability. The article presents the most important information on the developed tools for the assessment of functional ability to work and qualification standards that enable, among others, determination of ICF qualifiers on the basis of tests. The developed standards are made available at no additional charge and allow for the wide use of these tools due to the low cost of their implementation.

DOI: 10.54215/BP.2023.08.17.Tokarski