Airtightness testing apparatus and method of using same

An airtightness testing apparatus, comprising:

• a containment vessel at least partially defining an internal entrainment chamber having an inlet port and an outlet port;
• a gaseous suspension generator;
• and
• a pressurizing device having a low-pressure side in fluid communication with the gaseous suspension generator and the inlet port of the internal entrainment chamber, and a high-pressure side in fluid communication with the outlet port.

A testing module for an air tightness testing apparatus, comprising:

• a body;
• an internal pressure chamber at least partially defined by the body;
• an inlet opening formed in the body and in fluid communication with the internal pressure chamber;
• and
• an outlet opening formed in at least one generally planar side of the body and being in fluid communication with the internal pressure chamber;
• and
• a resilient seal disposed around a periphery of the outlet opening and connected to the at least one generally planar side of the body.