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

The source capture system is specifically designed for the purpose of capturing air contaminants right at their source, before they have a chance to disperse into the surrounding environment. This type of system is commonly used in applications like welding, grinding, and other industrial processes where airborne pollutants are generated directly from specific activities.

The effectiveness of a source capture system lies in its ability to localize the contaminants, reducing overall exposure for workers and improving indoor air quality. By utilizing hoods, ducts, or localized ventilation devices, this system ensures that pollutants are effectively confined and removed before they can circulate into larger areas, making it essential for maintaining health and safety standards in commercial and industrial settings.

In contrast, a ducted system generally relies on a network of ducts to transport air throughout a building but does not focus specifically on capturing contaminants at their origin. A return ventilation system primarily aids in the circulation of air back into the HVAC system, which does not specifically target the capture of contaminants. Finally, a filtered air system involves the use of filters to clean the air but again lacks the targeted approach of capturing contaminants at their source. Therefore, the source capture system is the most effective and appropriate choice for this purpose.