MinnesotaHomegrown303
Active Member
I have a passive closed loop system from bvv and am looking into getting a 5 gallon shatter vac set up to purge with. Ive found multiple conflicting opinions regarding one vs two stage and different cfm ratings. My questions are : one or two stage? Pros and con's. As far as I can find the main difference is microns it pulls and THC boils at room temp with either. The two stage pulls it faster but also at higher temps? At least that is my basic understanding. Also can anyone help explain the cfm rating?