A month ago I never would've guessed the answer to my cars' inside window fogging problems could be as simple as a giant version of the same thing I've seen inside supplement bottles for my entire lifetime. Now I am a believer, and that's thanks to these WiseDry 500g desiccant packs!They worked for me exactly as advertised, including the recharge procedures. I purchased 8 packs and stuck 4 inside each of my problem children (vehicles, that is). The benefits played out over several days. I did need to wet vac out the pooled water in one of them to get maximum benefits from the packs. But the result over 4 weeks of constant usage is obvious--highly reduced condensation on the inside back and front windows of the two cars! In a wild, woolly, WET Pacific NW winter, that is an AMAZING result!I did discover the microwave is not a very efficient way to recharge all 8 even 2 at a time. It took these packs about 5 days to suck up enough moisture to go "full bloated" (650g weight or more) and following the instructions it would've taken a couple hours all told to get all back down to 505g +/- new weight. And that process pretty much required constant attention. I was actually concerned about the workout it gave my microwave, which isn't used to more than 20 or so minutes of use at a time. So I tried the oven method and was more satisfied using that for these packs. Keeping the oven temp below 300F it still took 6 1/2 hours to get all 8 packs down to recharged weight, but it was a completely hands off process. I don't have an easy way of measuring the energy use of my oven, but I wouldn't be surprised if cost was a wash due to the lower KW needed by a 240V appliance to provide same amount of heat as a 120V unit. That's physics so not gonna go there. Anyway, these packs fared well in the oven so that's likely how I'll generally recharge them. All told I'm giving them 5 stars and gonna keep them in mind for ALL my moisture-related problems henceforth.One note about oven recharging: I'm cheap so I order some less expensive versions of these 500g desiccant packs after seeing the results of the WD's--the white ones that look almost exactly like an overblown version of a vitamin pack, in every way, including seam sealing. Whereas the WD's are tubular construction with just very serious heat fused seams on the top and bottom, the cheaper packs have seams on all sides that did look less, shall I say, "sincere." I allowed them that slack since they were, in fact, cheaper and still claimed to be oven-chargeable. sWell don't you believe it!! Of the 6 of those packs I oven-recharged same as the WD's, 4 split their seams and spilled the beads! Would've been a much bigger mess had I not had a baking sheet below them to prevent direct heat from the oven elements. Oven temps were never about 300F but I believe should be kept to a limit of 250F for these packs. Then they seemed fine, but time of recharge would go up as much as several hours. I have yet to try that again--getting my courage back up...

Works very well, brings the humidity down quickly. IMO, this product that just has you weigh it to know when to dry is better than color changing, because the color change doesn't really tell you when it is saturated, just when the RH around it has increased. By then the product has been ineffective for awhile. It is better to just weigh it occasionally and estimate how long it should last that way. As well, the window to see the gel is normally not as heat resistant and it more likely to be damaged upon renewing.I also had a slight issue which the company was quick to resolve for me! Great service!

This works great in the car, especially when humidity is high. Inside the car doesn't smell musty after heavy rainfall. On dry days it resets itself, so I haven't had to intentionally place in the microwave or outside of car to recharge. Will be buying more of them to help cope with tropical humidity.

I use this for my car to manage moisture. I later on noticed moisture buildup on my windshield so I weighed them and saw they were at 650g (I used a kitchen scale to check). I was cautious regarding the bag melting (as I saw the reviews) so I did 4 rounds of 3 minutes microwaving in a 1000 watt microwave. I weighed them again and had them almost at 500g again, will be reusing them now. They work and should be reusable I just took a star off because for being reusable you'd think you'd need to be less careful with microwaving them

We have a snack box for our delivery folks at our front door. These are super handy and keep everything dry from any moisture in the Pacific NW.

They work. Went camping in my car in 20F weather and keep the inside dry. One on the dash the other in the middle of the car. Buy it!

Effective, eliminated inside moist on windshield with 2 bags. Clear Instructions printed on bags on when to dry out in microwave oven to store effectiveness. Using in moist climate of PNW

I only really right reviews if the thing performed it's function as advertised... And this product works excellently!! I bought these for my car because I've had water stuck in it for a while that refused to evaporate and was fogging up and icing the inside of my windshield... But 2 days being left sitting on the dash, and the windshield is perfectly dry and I think even some of the water that was stuck in the floor is gone now!One thing I can't speak for is the "reactivation" process. I have not yet needed to do so but I will definitely come back to add to my review if I find that it doesn't work. 01/05/25

good little item

I use this product in my chicken coop to reduce the moisture/humidity in the below freezing temperatures. This is to prevent frostbite on my chickens combs!I recharge regularly and no frostbite. The chickens say thankyou

WE have been using these for over a year now and really like these. Easy to know when they need recharging and placing in the oven to recharge is easy . Bought a few more packs of these. Work great !

Todavía no lo he probado pero la presentación y el precio es bueno. Envío rápido. Por ahora todo perfecto

Excellent product very effective