EDIT:
Wait! They have it for cars too :)
http://www.torquefiltration.com/
Will the Cruze size work on a Cobalt?
K&N makes one. You can call to order 800-858-3333
I'm sure you can wash the current one. It's like $10 at a Walmart if you want a new one
yes. K and N air filter. But its a custom order.
I'm looking for a good reputable company that makes washable cabin air filters for Chevy Cobalts. Notice I said CABIN air filter, not ENGINE air filter. Big difference. And by washable I mean something I can rinse with soap and water, dry it, and put back into my car without having to buy a new one. Is there such a thing?