回复：我前两天问过另一个问题，２００９Camry, 两万码了，该换Air filter 了，

I believe Toyota sells for $25.  You can find third party one for $10-15.  Quality should be pretty much the same.  Change by your self.  It's super easy.  Just take off hindge screw and push both ends of the glove box to take it off.  You can always search YouTube for instruction but pay attention to the year of Camry since it's a little different from year to year.