Eva-Dry E-500 Renewable Silica Gel Dehumidifier 2 Pack
- 500 cu ft per unit, two units in the pack
- Cordless, plug in to renew
- Reusable up to 10 years
- 0.18 liters per day dehumidification
- 8 oz silica gel capacity
- 22 watts, 120 volts
- 2.5 x 8 x 6 inches each
- 5 year limited warranty
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A pair of small silica gel dehumidifiers for enclosed spaces like gun safes, closets and boats that renew by plugging in instead of using batteries. They remove a small amount of moisture, so they suit tight spaces only.
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ASIN: B09Y2B68MYModel: E-500Category: Dehumidifiers
Overview
Eva-Dry builds these units around renewable silica gel, so moisture is absorbed without a compressor and the gel is dried out again by plugging the unit into a wall outlet. Each is sized for a small enclosed space, and two come in the pack.
No batteries, no tank and reusable gel are the reasons to buy, in a pair sized for small closed spaces. The limits are capacity and scope: output is small, the listing gives no renewal time, and a large room needs a different tool.
Who it's for
Enclosed storage such as a safe, a small closet, a bathroom cabinet or a boat cabin suits these units. Basements and large rooms with a real moisture problem need a compressor or desiccant machine instead.
Pros and cons
- No batteries needed
- Cordless in use
- Renews by plugging in
- Reusable silica gel
- Low moisture capacity
- Renewal time not listed
- Covers small spaces only
Performance notes
Silica gel absorbs water vapor from the air in an enclosed space until it is saturated, then plugging the unit in dries the gel for another round. Capacity is limited by the small amount of gel, so tight, sealed spaces work best. Each unit is rated by the volume of space it serves.
Specifications
| Brand | Eva-Dry |
|---|---|
| Model | E-500 |
| Dimensions & fit | |
| Item Dimensions D X W X H | 2.5 x 8 x 6 inches |
| Capacity & performance | |
| Dehumidification Capacity | 0.18 liters per day |
| Capacity | 8 ounces |
| Coverage volume | 500 cubic feet each |
| Wattage | 22 watts |
| Power & efficiency | |
| Voltage | 120 volts |
| Construction & materials | |
| Material | Silica gel |
| Color | White |
| Included components | |
| Included Components | User manual |
| Warranty & support | |
| Warranty Description | 5 year limited manufacturer |
| Other details | |
| Floor Area | 63 square feet |
| Operation Mode | Intermittent |
| Other Special Features Of The Product | Renewable silica gel, no batteries, cordless |
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Frequently asked questions
How do I renew the Eva-Dry E-500?
The title says it is cordless and renews by plugging in. The listing gives no renewal time or indicator, so follow the user manual.
How long does an Eva-Dry E-500 last?
The title says it is reusable up to 10 years, and the manufacturer warranty is listed as 5 years limited.
Does the Eva-Dry E-500 need batteries?
No. The title says no batteries, and the unit renews by plugging in.
Is the Eva-Dry E-500 meant for a whole room?
No. Each unit is rated at 500 cubic feet, and the listing names gun safes, closets, bathrooms, boats and RVs.