Deerma Electric Mini Dehumidifier Review: Not Your Typical Choice

Heard of the Deerma brand? Neither have we until now. Deerma Electric Mini Dehumidifier is the latest challenger to tackle the niche desiccant segment. Comes in a cylinder shape form, this highly versatile, cordless dehumidifier is one of the best we ever tested despite being a relatively unknown brand. So what features we like and what we are not so keen on? Is Deerma's new renewable dehumidifier a good substitute to the usual Eva-dry model? How effective is this moisture absorbing compared with other similar models? Let's find out in our review below.
± 19.98 p
Online price*
** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is provided by cleanairprice.com. Accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.

Deerma Electric Mini Renewable Specification

ProductDeerma Electric Mini Renewable
3 x 8.1 x 3 in
(7.6 x 20.6 x 7.6 cm)
Weight1.65 lb (0.7 kg)
Spaces (up to)333 ft3
Capacity5 oz
Duration per charge2-3 weeks
Power SourceRenewable/ Rechargeable
Charging time12-15 hours
Moisture indicatorYES
Wireless/ CordlessYES
Child/ Pet safeYES
Warranty1 year
Email/ Phone supportYES


  • Rechargeable, non-toxic 600g dehydrated silica beads
  • Moisture indicator - Crystal color from pink (dry) to blue (wet)
  • Cordless - No batteries needed
  • Cylinder shape with dense hole design, ABS flame-resistant, and secure horizontal support
  • Environmental-friendly and Completely silent operation
  • Leak-free design with 3 Ceramic PTC Heating Elements
  • 1-year warranty


A vacuum cleaner company that has ties with Xiaomi, Deerma new renewable dehumidifier is their latest tiny invention. At 3 inches in diameter and 8.1 inches in height, it is very compact and portable despite not the smallest in its class. The 1.8 pounds weight is on the heavier side due to the leak-proof, spill-free, and high-quality ABS flame-resistant cylinder body. There is also a transparent visualization window that you can peek at to see if is time to recharge the mini dehumidifier. Recharge when the crystallized silica gel beads turned from orange to dark green.

Deerma Electric Mini Renewable is ideal for small spaces with mold and moisture issues like gun safe box, under sink, closet, wardrobe, pantry, shoe rack, jewelry box. The cordless setup means you can place it in the washroom, RV, car, and boat cabin with no restriction. The only letdown is probably the standard 1-year warranty which competitors model like Eva-dry offers up to 5 years.

Dehumidification Technology

Deermaelectric mini dehumidifier uses a familiar, renewable crystallized silica gel technology. A desiccant, porous granular silicon dioxide made entirely from sodium silicate. Each silica gel bead contains many hidden interconnected pores that join up to form a large surface area. Through chemical adsorption, moisture in the air will seep in and absorbed by the silica gel. It is estimated that each bead can hold up to 40% of moisture to its weight thus the extended 2 to 3 weeks usage time.

Protect and preserve your valuable items from rust and water damage. Deerma Electric Mini Dehumidifier is filled with a total of 600g dehydrated silica bead. It will give you a comfortable non reverse osmosis 2-3 weeks of moisture draining of up to 500 cubic feet before requires renewing. While it is not the quickest in reducing humidity and keeping the air dry, the wireless setup is well appreciated as no batteries or electrical plug is needed during operation. Unlike some mini dehumidifiers, you can use Deerma Electric in a vertical or horizontal position with Secure Horizontal Support yet without impeding the air inlet. Adding all that is the 3 PCS Ceramic PTC heating elements that help promote thermal conductivity and uniform heating. Charging time is a bit slow between 12-15 hours despite the advertised quick restore to dry status. During charging, you will need to keep Deerma Electric Mini Dehumidifier in a vertical position as the product may become hot with excess water expel out.

Price Guide

For around 20 bucks, Deerma Electric mini dehumidifier is a tad more expensive than the usual choice. However, you do get slightly more features out of it. It is definitely worth the extra few bucks but at the end of the day, it will function exactly the same as other renewable dehumidifiers. Give Deerma a shot if you want to try something new for a change.
Forget about your local retailers and official website, Amazon is the only place you could buy Deerma mini dehumidifier. It comes with hassle-free ordering, free shipping if the order is above $25, and 30 days no questions asked return policy. Unfortunately, there are very limited sellers carrying this brand so whatever discount you find on Amazon is probably the best deal. Do check back this section again and see if there are other means of getting one.


Pro Breeze Renewable Cordless Mini Dehumidifier

Pro Breeze Renewable PB-04-US

An identical but perhaps more popular model from Pro Breeze. Design-wise it is square VS the efficient cylinder so our vote does to the latter.
Eva-dry E-333 Wireless Mini Dehumidifier

Eva-dry E-333 Rechargeable

The most popular renewable dehumidifier mentioned earlier. Eva-dry E-333 is cheaper, comes with 5 years warranty but with a tad weaker coverage.


  • Absorb water vapor up to 400 cubic feet without the need for batteries and an electric cord.
  • Strong ABS flame-resistant body that will work in a vertical or horizontal position.
  • Reusable, recyclable, chemical-free crystallized silica gel beads.
  • Last up to 2-3 weeks per charge without having to empty the water.


  • Very long 12-15 hours recharging time.
  • Only 1-year warranty with limited after-sales support.
  • Limited 5 oz moisture absorbing capacity.
Deerma Electric Mini Dehumidifier

Kingston Kay

Growing up in New Orleans; one of the highest relative humidity in the United States, Kingston Kay knows a thing or two about humidity. Besides reviewing dehumidifiers for living, you will find him gyming in the basement.

Other Deerma Mini Dehumidifiers