yea bro the air coming in is from the two boxes in the last picture they have valves so i can i can pull from the attic for warmer air in the winter and from the floor during the summer for cooler air or use them at the same time. yea they are filtered 12x12x1'' pleated filters no dirt no bugs. no bullshit they are quick change takes like 30 seconds to change. ill set up more ppictures when the lights come on.oh yea the air into the room are 2 6'' and the bigone in the corner in the first 2 pics is a 8'' for the light.