Many air filters have a metal “chicken wire” screen on the clean side, presumably to add rigidity. I recently bought a Purolator “Tech” filter for our Explorer, and it didn’t have this backing. I’m guessing it’s just for cost-cutting, since this is a budget filter. Assuming I don’t run the thing well past its useful life and clog it, I can’t imagine the pleats will implode right? Filter is nicely constructed otherwise, and has lots of embossing on the media. The Motorcraft filter for this vehicle doesn’t even have that.