Product review (4 stars): Great temporary fix, but not ideal.
This is a good temporary option if you just need to use your dryer and you can't afford a vent-less option. The former owners of my condo did a hack job with venting, and the dryer just vented into the attic. It's a fire hazard. I did put some mesh over it to collect the extra dust, but to be fair most of the extra dust came from the dryer exhaust being blocked. The dryer catches most of the dust, and the water traps the rest. I am happy my home is no longer a fire hazard, but the humidity involved collects on the ceiling and it forms droplets. It's like it's raining inside my house. This will only be a temporary solution until we can afford to buy a vent-less dryer. I am happy that I am able to at least use my dryer, but it's not the ideal situation. To lessen the humidity for now, I put in smaller loads. However, since switching to this my dryer has been working great and the dry time is cut in half.