New Pad Smell. Chances are, you’ve encountered it if you’ve used an evaporative cooler. What causes it, and is it harmful? We’re frequently asked about this at the beginning of cooler season, as people change out their pads for spring start-up. Much like a new car or new clothes, new media does have an aroma, but this typically wears off within a few days and is completely harmless. Our universal rigid media kits are GREENGUARD Gold Certified. This is the strictest chemi