Question

medical exams are required to be provided every 3 years for workers who wear respirators, for a minimum of how many days per year?
30
45
60
90

Explanation:

This is a regulatory - related question in the field of occupational health. According to relevant regulations, for workers who wear respirators for a minimum of 30 days per year, medical exams are required every 3 years.

Answer:

A. 30