I do bulk when I do grow, I mist and fan once a day, but I do not violently fan like a lot of people do, I just try and remove some co2 without dropping the RH too much.

the method I use is extremely easy, dont even need polyfill.

all I do is once its time to introduce to fresh air I fan it out one good time then wipe down the walls with a clean paper towel (evaporation is a major pinning que) then I place the lid on top slightly skewed so theres a half inch gap on opposing corners.

this method allows a cleaner less conspicuous grow chamber with more grow space and its far more efficient than holes and polyfill.