We have to switch out moisture-control bags frequently. We live near the beach and in the fog, so we have to keep moisture in check or mold will be an issue.I’ve purchased all the top name brands of these types of bags. And I’ve even tried smaller, less-known brands.Here’s how Dry & Dry compares:Dry & Dry pulls water out of the air starting as soon as the very same day you hang it up. It’s very effective, and efficient at doing so.Other top brands and even the less-known brands start pulling water from the air within days, or even up to a week.What does this mean for us? We have to replace these more frequently because of the efficiency. But it also means these pull more moisture out of the air in less time, keeping our house from getting the mildew smell.We put these in closets, bathrooms, attic, garage, laundry room, etc. and we put two to three spaced throughout the larger rooms such as attic and garage.Heres something different with Dry & Dry than other brands we’ve tried: the moisture that is pulled into the bag looks dirty! OMG! My air is really that dirty!!?? Check out the photo. I have no idea why the water pulled out of the air from this brand looks dirtier than the other brands. Kinda weird.But I like this brand as much as (maybe slightly more) other (major) brands such as Arm & Hammer and DampRid unscented. The only difference I found is mentioned above and I will continue to buy these as long as the price remains competitive with the other brands.Dry & Dry, thanks for putting out a good competitive product!