Product review (3 stars): Works well but needs a nylon stocking.
We needed an indoor dryer vent that would remove the dust and lint from the dryer exhaust.  We wanted to recover the heat from the dryer but not the dust.  This vent was easy to instal and came with everything needed to get the job done quickly.  The tube is nice and flexible and extendable.  You just add water to the lower section and snap on top section that the tube connects to.  The water in the lower section collects most of the lint and dust but there are holes in the upper section that allow the fine dust to escape. You can pull a ladies knee-hi nylon stocking over the top section and cut off the end so there is a hole where the tube connects.  This seems to correct the problem and the dry vent works cleanly and perfectly.