E-500 Renewable High Capacity Dehumidifier

Now Only $29.95!

(Originally $34.95)
Limited Time Offer

(20 customer reviews)

$29.95 $22.95

The E-500 fights and protects against dampness in areas such as:

  • Closets: Eva-Dry prevents damage to fabrics and musty odors caused by excess moisture.
  • Boats: Keeps boat cabins and areas dry and free of humidity build-up.
  • RVs and campers: Protect your outdoor home from humidity in the air and interior living spaces.
  • Gun Safes: Prevent rust to guns and expensive ammunition and other damage caused by excess moisture.
  • Bathrooms/Laundry Rooms: Eva-Dry absorbs excess moisture form vapor related activities, and helps dry fabrics faster.

This eco-friendly dehumidifier silently and reliably protects against mold, mildew and moisture in areas larger than the Eva-Dry E-333, units and lasts 30-60 days before renewing. Special features of the E-500 includes: the unit works in areas up to 500 cubic feet, requires no batteries or cords for use, is 100% renewable, works up to ten years, is compact/silent, always spill and mess free and is non-toxic, child and pet safe! The unit measures 8″ L , 2 ½” W, 5 ½” H.

Plug in to renew! (12-15 hours)

Other Uses:

  • Bedrooms: While absorbing excess moisture you are also reducing dust activity, and consequently the risk of allergies.
  • Basements: Protects stored clothing and tools from damage caused by excess moisture.
  • Cabinets: Protects stored food from damage caused by excess moisture.
  • Offices/Supply Closets: Protects electronic equipment, supplies and paper from damage caused by excess moisture.
  • Gym Lockers: Absorbs odors and dries wet gym clothes faster.
  • Safes: Protect your valuable pictures and important documents from damage caused by excess moisture.
  • Musical Instruments: Prevents damage caused by excess moisture.
  • Plastic Storage Containers: Absorbs musty odors, and prevents damage caused by excess moisture on stored seasonal clothing
Weight 35 oz
Dimensions 5.5 × 2.5 × 5.5 in

Power Source

Suited for spaces up to


Usage in Motion



Product Demo

20 reviews for E-500 Renewable High Capacity Dehumidifier

  1. Ginger Anderson

    Works for about 18 months.
    I purchased 2 in November of 2017 from Amazon. The first year, they worked great. After that, it takes longer and longer to refresh the beads. Now, I can leave plugged in for over a week and the beads are still green. Neither one works anymore. I am back to buying Damp Rid for my closets.

  2. Katherine Hallett-Myers

    I bought a set of these for my RV. I had a problem with plugging these into an outlet. Too heavy for a wall outlet so I used a extension cord or plug board. I was not happy with these at all. It took forever to get them dried out to reuse. Not very good for RV plug in.

  3. Sam

    Interesting that there’s not a single negative review on this item. I’ve found that mine do pull some moisture out of the air, but even in a small 3×4 closet (96 cubic feet), and monitoring the humidity…it will only drop a point or two. Given that it’s rated for 500 cu ft, you’d think it would be far more effective given that I’m only using 20% of it’s ability.

  4. Amazon Customer

    This item was highly recommended to us by a friend to use in our safe. So far so good no problems. It came right away packaging was great. Highly recommend

  5. Ian

    I have been using these to keep the humidity low in a plastic bin for my 3d filament and they work great. It helps keep it below 20% and I haven’t had to recharge them yet.

  6. Jon S Teefey

    I had one of these and liked it so much I bought 2 more for my safe!

  7. M. Huang

    I purchased the E-500 to keep my car dry inside in the California rainy winter. High humidity and low temperature combined are bad for human body. So far I am happy about the product. Not like house, inside the vehicle it is impossible to use conventional dehumidifier.

    One issue worth to mention is that the indication printed on the product is wrong. It should be that Orange indicates wet and Green indicates Dry. I think that is the reason why a lot users are not happy. If you put a wet one into the closet, it will probably never become green (dry) by itself. And for sure it will not reduce the humidity for you.

    Mine came as Orange inside. Plug in for a night, you can feel the heat and inside became partially dark blue, which is okay. Darker the better. Put it in my car for 3 hours, it completely returns to Orange or transparent again. I may need more than one for my purpose.

  8. Foltzilla

    Overall great product and does what it’s intended.

  9. Steve S.

    Didn’t have to run power to the location. Makes no sound. Long warranty.

  10. TreyM

    I’m using the item for inside my 24 gun safe. The item does its job as far as I know. The plug is located at the bottom so once it turns the pellets green I plug it up and it dries them out for re-use. It usually takes about 3 days for the beads to get completely dry for me. Not sure if this differs for anyone else but that is my average turn around time for wet to completely dry and ready for use.

  11. TC

    It’s a Christmas gift – will let you know more after the holidays !

  12. Amazon Customer

    Bought 2 E 500s for my large Liberty Timberline gun safe. I live on the gulf coast so humidity is an ongoing issue. So far they have helped control the moisture on really humid days to between 55 to 60%. On dry days my safes humidity is between 47 and 50%. I have had them for about 90 days and have had to plug them in to dry them once. Would highly recommend.

  13. spinrbait

    They do a great job. you have to plug them in a wall every so often to get the moisture out of them. i have several of them i haven’t had any fail.

  14. Thoth

    I no longer worry about rust in my safe! This is an excellent renewable source of humidity control! I highly recommend this! I am very interested in other products by this company! Not only is this a neat and super energy saving product, It really works! I give it my 100% trust to keep my guns safe! All gun enthusiasts should own one of these bad boys!

  15. Lon d

    Very Good, Thanks

  16. Amazon Customer

    Perfect for gun safes!

  17. Michael J Sullivan

    This is my 3rd one works very well

  18. Dobe

    These work great! I have been using these for years in my closet and they really help with the humidity.

  19. Andrew

    This thing works! I used this in a big rubermaid bin asa dry box. It keeps the box around 40-50% humidity while the room it is in us around 75%.

  20. Chris N

    I use one of these in my chest freezer based kegerator. Does an outstanding job of keeping condensation under control. I’ve used the same one for a long, long time and it’s still going. I picked up a second for use in my fermentation chest freezer.

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