Product review (1 stars): Uh, might be good for pulling air out, but smells horrible!
If you are ducting fumes away from living creatures you care about, this might work, but if you intend to use it to bring air into a living area, do not purchase this stuff!  You'll probably get brain damage from the fumes if you do.  This stuff is horrid smelling.  It is easily the worst smelling tubing I've ever came across in my entire life, and I can't believe no one here has felt that wasn't worth mentioning!  There are numerous other types of duct that are just as inexpensive, just as durable if not more so, and do not stink like this one does (ex. Deflecto F0420B right here on Amazon).