Product review (4 stars): Giant help for long dryer vent runs!
I bought this product because I have an underground dryer vent that has 2 90 degree angles and is about 25 ft long. Without the dryer vent booster, I had to resort to using one of those boxes you put water in, otherwise, my clothes wouldn't dry. With the booster, I no longer have to worry if my clothes are going to be dry at the end of the cycle. This model has the advantage that you can use it right off the dryer. Most boosters that I had found, had to be at least 10 ft away and placed somewhere in the vent. With this I can simply hook up two hoses, one from the dryer to the booster, and one from the booster to the vent. The booster makes very little extra noise. The only down side that I've encountered so far is that the pressure sensor hose has a tendency to rip the aluminum vent.