Eva-Dry Renewable E-333 Wireless Mini Dehumidifier Review

Est. $20
June 2015
by ConsumerSearch
Eva-Dry Renewable E-333 Wireless Mini Dehumidifier Review

Best mini dehumidifier

  • Good for small, enclosed spaces
  • Operates without batteries or electricity
  • Five-year warranty
  • Very low capacity
  • Takes up to 12 hours to recharge
Where to Buy

Bottom line

You can't beat the energy efficiency of the Eva-Dry Renewable E-333 Wireless Mini Dehumidifier as it requires no batteries or electricity to operate. While it's not suited for larger spaces, the Eva is the perfect solution for closets and small bathrooms where mold and mildew are likely to grow.

Breaking it down


Small but effective for small spaces. Owners posting to Amazon.com say the Eva-Dry Renewable E-333 Wireless Mini Dehumidifier might be small, but it works like a champ. This mini dehumidifier will absorb about 6 ounces of moisture before it's at capacity. That's sufficient for a small bathroom or a closet or cabinet. Some owners use them in spaces as small as drawers. Another popular use is to prevent moisture damage to firearms stored in a gun safe. After it's full, the Eva-Dry must be plugged in to an electrical outlet in a well-ventilated area. Reviewers at Amazon estimate that it takes between eight and 12 hours to fully release the collected moisture.

Ease of use

Extremely simple. With no batteries and no electricity to worry about, the Eva-Dry E-333 couldn't be easier to use. The unit's intuitive design includes an indicator window that lets you know when it's time to release the moisture. The interior of the unit contains crystals that are blue when dry and turn pink when wet. When all visible crystals turn pink, it's time to plug the unit in to release the moisture. TheE-333 is only suitable for very small spaces -- up to 33 cubic feet. Moisture is vented to the air when released, so keep that in mind when picking a space to recharge the unit -- outdoors or a next to an open window in large room works best.


Quiet as a mouse. The Eva Dry dehumidifier is, essentially, completely silent during use because it doesn't require batteries or electricity to operate a fan. Even when plugged in to release the collected moisture, the unit doesn't emit any noise.

Durability and reliability

Solid track record. The Eva-Dry E-333 dehumidifier needs no batteries or electricity to operate and has no moving parts to break down. User reviews, some of which indicate years of use, are positive for the most part. The warranty is for 5 years.

Where To Buy
New and Improved Eva-dry E-333 Renewable Mini Dehumidifier

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Eva-Dry E-333 Wireless Reviews

1. Amazon.com

More than 1,330 owners offer feedback on the Eva-Dry E-333 Mini Dehumidifier awarding it an average rating of 4.3 stars out of 5. Most owners report excellent results in bathrooms, cabinets, clothing chests, gun safes and similar spaces. However, about five percent of reviewers say the Eva-Dry did not remove a significant amount of moisture.

Review: Eva-dry Renewable E-333 Wireless Mini Dehumidifier, Contributors to Amazon.com, As of June 2015

2. AceHardware.com

We only found a handful of reviews for the Eva-Dry E-333 Mini Dehumidifier at at AceHardware.com, where it receives an average rating of 4 out of 5 stars. Owners say they are satisfied with the dehumidifier and like its compact size.

Review: Eva-Dry Dehumidifier (E-333), Contributors to AceHardware.com, As of June 2015

3. YouTube.com

John Dean, owner of DeanSafe.com, uploads a brief video explaining the benefits of using a small humidifier to protect guns and other items from moisture damage when stored in a gun safe. He says that the Eva-Dry is more convenient to use than silica gel packs, and that it can be used and recharged multiple times. He says that the mini dehumidifier is reasonably priced yet can save you "a fortune" by protecting your rifles from moisture damage.

Review: Eva Dry Dehumidifier protects guns, shotguns, and cameras, John Dean, Oct. 23, 2010

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