OSHA #511 Occupational Safety and Health Standards for General Industry course

What is the acceptable atmospheric oxygen level in a workplace environment?

1. 18.5% to 22.0%

2. 19.0% to 24.0%

3. 19.5% to 23.5%

4. 20.9% to 21.5%

The correct answer is: 19.5% to 23.5%

The acceptable atmospheric oxygen level in a workplace environment is between 19.5% and 23.5%. This range is critical because oxygen levels below 19.5% can pose a risk to health and safety, leading to potential impairment and respiratory distress. Conversely, levels above 23.5% can increase the risk of fire and explosion, as oxygen is a key component in combustion. Maintaining oxygen levels within this specified range ensures that workers can operate safely and efficiently without risking their health. The options that fall outside this range do not align with the established safety guidelines that OSHA has put forth for ensuring the well-being of workers in various environments. Maintaining the right balance is essential for both safety and productivity in the workplace.