The physical suitability of respirator wearers must be determined and monitored by occupational medical check-ups in accordance with the occupational safety principle "G 26 Respiratory protective devices" (see ArbMedVV, Appendix Part 4, BGV A 4 and GuV-V A 4 and Fire Service Code "Respiratory Protection" (FwDV 7)) ,

Due to the employer's duty of care, an aptitude test may be required under certain conditions. This is the case if there are objective indications of lack of fitness for health and no further individual protective measures are possible. Participation is not mandatory, labor law measures are possible in an appropriate manner.

Recruitment examinations are only permitted for work in hazardous areas if the determination of suitability reduces the risk of occupational accidents. The necessity and scope of recruitment examinations can be determined by activity-specific risk assessment. As a legal basis for such an investigation, the risk assessment alone is not sufficient. In addition, the limits of the right to ask questions in the Federal Data Protection Act and the principle of proportionality must be observed. Applicants are to be informed about the investigation and its purpose. Applicants can not be forced to attend the recruitment examination, but the decision to hire is subject to the employer.