What immediate action should you take if you begin to feel sleepy, dizzy, or have a headache while working in a closed space?

When feeling sleepy, dizzy, or experiencing a headache while working in a closed space, the immediate action to take is to get fresh air or call for help. These symptoms can indicate a lack of proper ventilation, exposure to harmful gases, or other environmental hazards. By stepping outside or seeking fresh air, you can help alleviate symptoms and prevent worsening conditions.

Calling for help is also crucial, as others can assist in ensuring your safety and can help address potential dangers in your working environment. It’s important to prioritize your health and safety in these situations instead of attempting to continue working or simply resting, as the underlying causes could be serious and require immediate attention.