Anyone know what this part from my 07 Honda Accord may be?

A lot of people are telling me it's the air filter, but when I pop the hood, what I have always thought to be the air filter, looks fine. The outer 1/3 of the bumper on the drivers side got ripped off. Along with the splash guard, and this. Anyone know what I need to order to replace it? Any help in solving this mystery is greatly appreciated. There are a million little pieces that I was not able to put back together, this photo is as good as I could get it. Thanks!

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