What type of system is designed to capture air contaminants at their source?

A Source Capture System is specifically engineered to capture air contaminants at their origin before they can disperse into the surrounding environment. This type of system is crucial in settings such as manufacturing and laboratories, where hazardous materials might be released into the air during operations. By removing contaminants right at the source, the system helps maintain indoor air quality, protects worker health, and reduces the potential for environmental pollution.

In contrast, other options serve different functions. A Vent Connector System is typically associated with venting exhaust gases from heating appliances, rather than capturing contaminants. An Energy Recovery System focuses on reclaiming energy from exhaust air to improve efficiency, rather than specifically targeting air pollutant capture. Lastly, an Existing Mechanical System refers to any pre-installed ventilation or mechanical system, which may not have been designed with source capture capabilities in mind. Thus, the designation of Source Capture System is appropriate for applications focusing on local contaminant extraction.