My closets size is: 1 x 1 x 1 (i will get rid of shelves and then will be size of closet 1 x 1 x 1.8. I have 400w hps grolux with cool tube and 2x 22cm + 1x12cm fans (2x22cm are for intake, 12 is for cool tube). I am also haveing 12,5mm fan with 190m3/h airflow (i will add it to cool tube when i get sound muffler). Now i grow 7x lemon skunk and 6x himalaya gold in 10l pots and they was about 1month in vegetation, now are in 14 day in flowering (they look quite nice). I am wondering if sound muffler totally (or almost totally) silent the fan? I will add the glass wool for sound muffling (its that good solution?) I know that glass wool is very good heat insolator and i am wondering if will be too much heat in box because of this wool all on the walls? For second doors i think i will glue wool with some wood and add the plastic foil across. What do you think about my plans? Is it worth to remove the top shelf to get an extra 20cm of height so the whole closet will be box.