![wisedry 2 x 500 Gram [2.2 lbs] Rechargeable Silica Gel Car Dehumidifier, Microwave Fast Reactivated Desiccant Packets Large f](https://images-na.ssl-images-amazon.com/images/I/71d+MkwAnML._AC_UL160_SR160,160_.jpg)
![Dry & Dry [2 LBS] Blue Premium Indicating Silica Gel Beads(Industry Standard 3-5 mm) - Reusable Desiccant Beads Silica Gel Desiccant](https://m.media-amazon.com/images/I/61lPSjBVg2L._AC_SS450_.jpg)
This is silica gel in a mesh container, with indicating color changing gel in the lid. It works great for cameras and lenses, especially in warm humid climates where mold and mildew thrive. As with important papers, DVD's, and photos, most everything we own is basically food for molds if the conditions are right. Lens coatings too...molds can get into a lens, and they can eat the coatings, reducing your sharp, expensive lenses to a foggy mess with no resale value. I live in Hawaii, and know what I'm talking about.
You can't stop the mold spores - they are everywhere - but you can control how fast they replicate by modifying their environment - change the temperature or humidity. Lower temperature and/or humidity means lower growth rates.
Many reviews here miss the point, being upset because this or that particular product didn't last long enough. Silica gel is the same in most humidity control products. It's not the product in most cases, it's how you use it. If your container or gun safe isn't air tight, then moisture is getting in all the time, albeit slowly. If you open and close your container often, you're exchanging moist air with the already dried air from the container. The more moisture you allow in, the quicker the silica gel will get saturated and need a recharge.
Don't blame the product, try to see if you can keep the moisture out of your protected container - add some cheap weather sealing gasket from the hardware store or plug up holes. Use a few smaller containers instead of a single large one. Get more than one container of silica gel.
That last suggestion is the simplest - get more, use a few at a time, store the used ones in zip locks (so they don't continue to absorb moisture waiting to be recharged), then recharge them all at once to save on energy costs. I use two at a time in a 2 cubic foot plastic tub that I keep my birding lenses and camera body inside of - in MY environment (80% humidity and warm), and opening quickly to remove stuff for a photo shoot and getting the cover back on the tub quickly, it's working fine. I did put weather sealing sticky backed foam all around the lid.
Oh, and when you see in the description and comments that one of these gel containers will control humidity in a 57 cubic foot area, that -sounds- huge. Actually it's just under a 4 foot cube in size.
Hint: get a cheap battery powered humidity monitor (about $15 here on amazon) to keep inside the container. It's better than simply relying on the color changing cap of these gel containers. I used wire through a couple of tiny holes in the clear plastic storage container so I could see the internal humidity any time.
When I first put the gel containers inside, the monitor read 82% humidity (that's where I live, on that particular day - your environment is different, of course) . In an hour or so, it was down to 16%. If I hadn't opened the container every few days, it would have stayed that way for a long time. But I use my camera and lenses often, and the daily humidity changes, and the gel does it's job. When the monitor says it's above 30% after sitting closed for awhile, I change the gel containers with recharged ones. Easy.
I now have 8 of these containers in a few different sized tubs where I keep lenses, camera bodies, and keepsakes.
My only other hint is that the mesh body of these gel containers is thin aluminum with thousands of closely packed holes which allow the air to circulate. They dent easily, and can bang around against your lenses unless you hold them in place somehow. The dents to the gel container don't hurt anything, but having them sliding around your expensive lenses probably isn't a good idea :)
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From the manufacturer
Features
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Max AdsorptionDry-packs steel dehumidifier canister contains a large volume of silica gel 750gm, sturdy construction, portable and electric free no cords.using top grade orange indicating silica gel in a compact and portable aluminum canister makes it one of the most versatile desiccant products on the market that is easy to reactivate. |
Powerful BeadsOur indicating beads will turn from orange to dark green when the silica gel is about 60-percent absorbed with moisture.It's filled with Silica Gel but there is a metal piece near the top that keeps the Orange Indicating Beads (about a spoonful) right at the top of the lid. This allows easy visibility of these Orange Indicating Beads. A spoonful of Orange Beads can be seen once we remove the metal piece, the remaining 750 Grams of Silica Gel can be found in the cylinder under it. |
Extremely UsefulDry-packs dehumidifier canister provides a lifetime of protection for your gun case, ammo storage, electronics, camera bag, shoes, tool boxes, cabinets, drawers, tackle box, backpacks, camping gear, rv's, trailers, storage bins, coin collections, craft supplies, etc. |
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A Great Little Dehumidifier For Your Safe! | REVIEW
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Mark Witkowski
Works well in my car...
Reviewed in the United Kingdom on March 10, 2013
