Product review (4 stars): A good solution for an apartment dryer in winter weather.
Living in an apartment and not liking to use a laundromat, I have a portable washer and small dryer.  In warmer weather I simply vent the dryer out a window, but in winter, when it is dry inside because of the heat being on a lot, or it's too cold and windy to have a window open, this is a handy way to vent the dryer indoors without having lint in the air. It's easy to set up and comes with everything needed.  A small amount of water in the base catches any lint that escapes the dryer filter, and I empty it in the toilet so as not to clog any drains.  Actually, with the portable dryer there is very little lint escaping, but this does catch it.