No Milar currently... just never seemed needed with 4 600 HPS lamps running in such a small room... Basically the idea was to make it like daylight in there.. which it does the job very well... but by all means if you have a sweet tip clue me in)..

On a side note the rest of the set up is like so..

700 CFM can fan with 8 inch carbon filter, on a 110v thermastat set at 70 degrees, this has worked fantastic for me so far, walls inside are painted flat white as well..

I do no humidity control I only CO2 in the veg.