Is there a filter for the AC system? when i turn it on, it smells like wet dog...

 

I think you have a clogged AC condensation drain tube... Arf!
I believe it's a tube, might be a just a hole...
To quote the service manual, "The condensed moisture drips to the bottom of the case and drains through a hole that lets the water fall on the road surface below the vehicle."
The hole is below the evaporator, passenger side engine compartment beneath the car.

Lil Dog in a big pound

 

Shoebox is your friend.

 

and if the hole is not clogged?

 

look for a dog?

 

Ive also heard you can spray lysol in the inlet by the windshield. is this true?