Does the ZipWall® Dust Barrier System work with negative air?

Yes, the ZipWall® system was designed for applications using negative air. Because negative air creates pressure against the plastic, it tends to tug on the poles. So, with moderate pressure you should place the poles 6 to 8 feet apart, for very high pressure situations poles may have to be placed as close as 1,21m apart. Always use GripDisks™ under the poles to hold the bottom in place.