Eva-Dry Renewable E-333 Wireless Mini Dehumidifier

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 accumulate.

Performance

Small but effective for small spaces. Owners posting to Amazon.com say the Eva-Dry Renewable E-333 Wireless Mini Dehumidifier may be small, but it works like a champ. One reviewer on the site says, "I've weighed mine repeatedly on a postal scale and the cyclic change shows it's working -- it will absorb and release about one-half cup (4 ounces) of water." It's designed for small, enclosed spaces, so it won't be effective at removing moisture from a large room.

Editors of AllergyBuyersClub.com test this model in a small bathroom with no windows and no ventilation. They found that when the Eva-Dry was in use after showering, towels and mirrors dried out quicker, leaving less opportunity for mold and mildew growth.

This mini dehumidifier will absorb about 6 ounces of moisture before it's at capacity. After it's full, it 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. According to the editors of AllergyBuyersClub.com, this mini dehumidifier is "lightweight, compact and barely takes up any room."

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.

Noise

Quiet as a mouse. Editors at AllergyBuyersClub.com give this Eva-Dry dehumidifier a perfect score for its quiet operation. In fact, it's 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.

Cost of ownership

Solid warranty. The Eva-Dry E-333 dehumidifier needs no batteries or electricity to operate. It does require an outlet to release the moisture when it's full, which some reviewers say can take up to 12 hours. This mini dehumidifier makes use of a special crystallized silica gel that's non-toxic and odorless. It's one of the most inexpensive dehumidifiers available at about $25, and it's backed by a five-year manufacturer warranty.