A lifetime or spent media analysis is a destructive test conducted at no cost to the customer with the purchase of a replacement panel.

A spent media analysis is conducted in response to queries about EDGE Panel replacement or expected life. Typically, EDGE Panels are deployed under standard operating conditions for 6 to 12 months before one panel is returned for analysis.

1. Select one panel per building/location/AHU/etc. from the center of the air stream (or as close as possible). Remove panel and replace it immediately with a new EDGE Panel.
2. Place the existing panel directly into a sealed plastic bag. If possible, use the sealable bag and packaging received with the new replacement panel. If the sealable bag is misplaced, contact Dynamic for a replacement.
3. Record AHU/area/building, company name and estimated time in service of the panel being returned for testing either directly on the panel or on a piece of paper included inside the returned panel’s bag.
4. Additional application information should be provided via email to the contact below including but not limited to what is being removed (smoke, odors, car exhaust, etc.), flow rate, face velocity, panel configuration, type of prefiltration etc.
5. The EDGE Panel should then be shipped to Dynamic in a timely manner.

A spent media analysis is conducted to evaluate remaining panel effectiveness after being installed and operated at typical conditions after a given period. The spent media analysis is a destructive test (media is removed from the panel and then tested). When a panel is received images are taken of the panel exterior and the surface of the media once the screen is removed. Media is then removed from the center of the panel and cut in half to test the inlet and outlet of the panel.

Two tests are performed using the sampled media: pH and toluene capacity. Measuring the pH provides information for adsorbed acid gases, and toluene capacity determines the total remaining pores available for adsorption of all gases including VOCs. The results are then compared to the known pH and toluene capacity of a new carbon panel.