SEAVON MD-819 Mini Dehumidifier Review: Affordable!

Damp bathroom or bedroom, SEAVON MD-819 Mini Dehumidifier is the perfect model for it. It has a very affordable price point powered by an ultra-quiet thermoelectric technology. But like every other small dehumidifier here, there is nothing new with the setup. So why should you pick SEAVON over the others? Find out in our full review below.
online price (US)**
±39.99 $/ 7
** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is accurate at the time of posting.
` The indicated online price guides as follows: $ = under $50, $$ = $50-100, $$$ = $101-200, $$$$ = 201-300, $$$$$ = $301-400, $$$$$$ = 401-500, $$$$$$$ = over $500.

SEAVON MD-819 Specification

ProductSEAVON MD-819
6.5 x 11.5 x 5.3 in
(16.5 x 29.2 x 13.5 cm)
Weight2.4 lb (1.1 kg)
Coverage (up to)2,200 ft3 (225 sq. ft.)
Airflow speed
Capacity9 oz
Water tank16 oz
Noise level40 dB
Power consumption
Timer/ Scheduler
Auto shut offYES
Continuous pump
Gravity drainage
More color options
Wi-Fi/ BTBluetooth
Remote control
Child lock
Warranty1 year
Email/ Phone supportYES

Key Features

  • Thermo-Electric Cooling Technology
  • One button control with water full red light indicator
  • 16 oz/ 500ml water tank
  • Ultra-quiet Peltier technology
  • Auto-Shutoff
  • Operating temperature 59-86°F
  • 1 year warranty

Design And Usability

SEAVON MD-819 has a slightly different exterior than most small dehumidifiers in its class. The rounded air inlet stands out the most couple with a slightly curved body. The bottom 16-ounce water tank is more conventional in design that can hold 1-2 days of water on normal use. Removing and emptying the water is also easy thanks to the front grabbing handle. As for operation, SEAVON MD-819 uses the standard one-button control that turns on/ off the machine with a click. No complicated controls or micro-adjustment needed. The indicator next to it will lit when the dehumidifier is on or when the water tank is full. On the whole, the 6.5 x 11.5 x 5.3 dimension and 2.4 lb weight is compact enough for everyday use without being too cumbersome. You can easily pack it in the luggage and bring it along during travel or short staycation.

Dehumidification Technology

SEAVON MD-819 Mini Dehumidifier 9 ounces water absorption is pretty standard for an entry-level model. The water capacity pairs well with a 16-ounce water tank for all-day dehumidification. Enough to cover around 2,220 cubic feet of room size, which is slightly wider than what other small dehumidifiers are offering. Suitable to run at about 86° F and 80% relative humidity, place it anywhere from the bathroom, caravan, boat, basement, cabin, bedroom, or garage with a relative humidity level above 50%.

Let's talk about what's powering SEAVON MD-819. It is a thermo electric dehumidifier that uses thermoelectric AKA Peltier effect to converts electricity into temperature differential. When damp air is pulled into the machine, the heat plus cold sink module will perform heating and condensation on the air. This resulted in moisture being extracted out and slowly drip into the water tank. The damp-free air will be dispersed out as mist thus effectively reduce the room humidity level. Without a humid environment, mold, mildew, dust mites, and other microorganisms will not thrive and survive thus effectively ending the spread.

SEAVON MD-819 40 low decibel noise output is perfect for bedtime use. It is extremely silent in real-life usage thanks to the brushless motor design. We have been using it on our table for days and barely notice its existence. Another advantage of Peltier technology is the low power consumption. Even though we don't have the official numbers, we did not see an increase in the electricity bill. Expect similar energy usage as every other mini dehumidifier in this category.

Price Guide

SEAVON MD-819 mini dehumidifier can be yours for less than 40 dollars after discount. For the price you paid, you'll get all the bare features including the auto shut-off feature. We have no issue with the limited offering as it is standard across all small dehumidifiers. If you want better moisture draining capacity dehumidifier, there are other higher range models in the lineup.
Amazon is the best place to go for SEAVON MD-819 Mini Dehumidifier as it offers the best deal with standard free shipping, hassle-free purchasing, and 30 days no questions asked return policy. Forget about the official website as it is unintuitive and hassle to order. Giant retailers like Walmart and Best Buy may carry the model but the availability is scarce.


  • Affordable dehumidifier that drains surrounding water vapor and mustiness smell.
  • High portable and will fit in any corner of the room.
  • Silent and energy-efficient.
  • Automatically stops the unit from running when the water tank is full.


  • Smaller than average water tank thus requires constant emptying.
  • Weak moisture capturing. Will not work below 41°F temperature.
SEAVON MD-819 Mini Dehumidifier

Max Fernandez

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

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