Final answer:
Respiratory protection in the workplace is regulated by OSHA under the section on Respiratory Protection. Employers must provide and ensure the proper fit of respirators and use other measures to protect workers from hazardous exposures. Internal defense mechanisms of the respiratory system, such as the mucociliary escalator, are complemented by the use of protective equipment in occupational settings.
Step-by-step explanation:
Respiratory protection is a crucial topic within workplace safety, covered under the Occupational Safety and Health Administration (OSHA) regulations. These regulations are part of Subpart E - Personal Protective and Life Saving Equipment, specifically the section on Respiratory Protection (1910.134). The guidelines require employers to provide adequate respirators to protect employees from inhalation of harmful contaminants. Employers must also ensure a proper fit test is conducted to ascertain that the respirators are effectively sealing against the face, which is one of the many requirements for respiratory protection under the OSHA standards.
The respiratory system has its own internal defense mechanisms, such as the mucociliary escalator, which help protect individuals from particulate matter and pathogens. However, in occupational settings, external respiratory protective equipment, including masks and respirators, is necessary to shield workers from airborne risks. This equipment is particularly vital in industries where workers are exposed to hazardous substances or infectious agents. Protective measures include using safer chemicals, improving ventilation, and providing personal protective equipment (PPE) like respirators, which must be paid for by the employer.