What do air intake and exhaust screens primarily protect against?

Air intake and exhaust screens are primarily designed to protect against debris and pests. These screens serve a critical function in ensuring that the air entering and exiting a mechanical system remains clean and unobstructed. By filtering out larger particles such as leaves, dust, and other debris, they help maintain efficient airflow and prevent potential damage to the mechanical components.

Moreover, they also keep out pests—such as insects and small animals—that could nest within the system. This is crucial for maintaining the operational integrity and longevity of equipment, as blockages or infestations can lead to malfunctions or inefficiencies.

While condensation and moisture, temperature fluctuations, and thermal expansion are also important considerations in mechanical systems, the primary purpose of intake and exhaust screens is related to managing airborne contaminants and preventing the intrusion of unwanted small creatures. Therefore, the focus on debris and pests as the main concern underscores the necessity of these protective features in maintaining system efficiency and safety.