My case is modular with removable dust filters. No matter how much air I spray at them. They don't come clean. I've sprayed full cans of air at them and they still don't come clean. Is it ok to bath them in water? And then spray them? For obvious reasons, I would make sure they were bone dry before reattaching them to the case, just want to know if it's ok first. I'm out of options and I don't know how to get these dust filters clean. Help?