Rollitup

Yea they work pretty darn good, I got two vivosuns that are over a year old.

bra i wish i woulda known that they worked i could have gotten the vivosun for 29.99 but i was scared that it would have odor leaks so i purchased a spider farmer for 49.99

I mean, vivosun has lots of versions of the same thing but the one I got was 43$ 4 inch and 73$ 6 inch and they work great. Some models of fans and stuff can have poor reciews but they will have a slightly higher costing one that has better reviews.