What is the push/pull ventilation method used for?

The push/pull ventilation method is utilized specifically to ventilate a space by employing both positive and negative pressure. This method enhances air circulation by using a fan or blower to push fresh air into the space, while simultaneously creating a negative pressure zone to exhaust contaminated or stagnant air. This dual-action effectively improves air quality and visibility, making it safer for rescuers to work within confined spaces where hazardous gases or poor air quality may be present.

In contexts like confined space rescue, maintaining a safe atmosphere is crucial for both victim outcome and rescuer safety. Proper ventilation can help reduce the risk of asphyxiation or inhalation of toxic fumes, thereby facilitating a more efficient and safer rescue operation. The inclusion of both positive and negative pressure creates a balance that is essential for effective ventilation in confined spaces.