How Do Dehumidifiers Work?
A dehumidifier works by drawing damp air in, remove its moisture, and expel the dry air out to the room. There are 3 common types of dehumidifiers: mechanical/ refrigeration, absorption/ desiccant, and thermoelectric. Each dehumidifier will have its own set of unique dehumidification technology.
- Refrigeration dehumidifiers work through condensation similar to a fridge. Incoming air will flow to the coolant coil, extracting and dripping water to the designated bucket. The waterless air will then be heated by the hot compressor and exit as mist.
- Desiccant dehumidifiers use a rotating wheel that absorbs moisture out of the air before releasing the dry air out.
- Thermoelectric dehumidifiers rely on Peltier effects to drain the excessive moisture in the air. When humid air is pulled into the Peltier module, both the cold and heat sink will generate energy and turn into a temperature difference.
You can learn more about How Does a Dehumidifier Work here.
Why Should You Get One?Everyone would benefit from a dehumidifier particularly asthmatic person, baby, and elderly. Placing it in the basement and garage is advisable due to the poor air circulation. If your room humidity level is excessively high (above 55 percent), a small dehumidifier would come in handy. Finally, summertime where air is hot and moist could also do with a moisture draining machine.
2021 Best Dehumidifiers for Home
|Dehumidifier||Online Price (Amazon)||Capacity||Coverage||Score|
|hOmeLabs HME020031N 70-pint Dehumidifier|
|70 pints (45 pints DOE 2019)||4500 sq. ft. (418 m2)||4.5|
|Tosot 70 Pint Dehumidifier|
|70 pints (45 pints DOE 2019)||4500 sq. ft. (418 m2)||4.5|
|Danby 70-Pint Dehumidifier|
|70 pints (45 pints DOE 2019)||4500 sq. ft. (418 m2)||4.5|
|Frigidaire FAD504DWD 50-pint Dehumidifier|
|50 pints (35 pints DOE 2019)||2000 sq. ft. (186 m2)||4|
|Tosot 30 Pint Dehumidifier|
|30 pints (22 pints DOE 2019)||1500 sq. ft. (139 m2)||4|
|Vremi B07JMZJX4B 70 Pint Dehumidifier|
|70 pints (45 pints DOE 2019)||4500 sq. ft. (418 m2)||4|
Basement is the popular spot to place a dehumidifier and hOmeLabs HME020031N 70-pint is our pick of the bunch. It is the perfect substitute to cover the poor ventilation in the basement. When the water vapor has nowhere to get out, it will create a humid environment that is perfect for mold and pesticide to thrive. These contaminants will create an unhealthy air space that can be dangerous to breathe in. The consistent 70-pint capacity output will ensure every cover is well covered. All your boxes of unused items will be perfectly stored on the shelf with no signs of mold infestation.
Being the best humidifier for a basement, hOmeLabs HME020031N does come with some good and bad package. For the good, continuous drainage mode is well-supported so the water clearing out part is not a concern. In any case, the huge reservoir will be able to hold water for at least a few days on the basis of 12 hours operation. The bad is the slightly flimsy drain hose design and perhaps more critically, auto-defrosting is on the slower side. A minor dent on the almost flawless basement dehumidifier.
- Quality design that is durable for continous operation.
- High performance 70-pint dehumidifier output.
- Full spec with digital display, timer, turbo, filter indicator, auto restart, and shutoff.
- Multiple drainage options.
- Slower defrosting than average 70-pint model.
- Loose drain hose connector.
Like the basement, the garage is also a famous breeding spot for mold and mildew. This is because moisture is trapped with nowhere to run from the poorly ventilation space. The excessive moisture can cause serious damage to the tools, shelf, valuable storage items through rust and rot. By having Tosot 70 Pint GDN70BA-A3EBA2D running at the side of the garage, it will effectively lower the humidity to an ideal point. Since garage is the place that you will likely drop by every day or so, you can depend on the large 12.8-pint drain bucket and manually clear out the water. A reliable continuous drainage option is here as well for direct access to the floor drain removal.
Tosot 70 Pint GDN70BA-A3EBA2D is the undisputed garage dehumidifier. It might be a bit pricey for a device that the sole purpose is to drain out the moisture, trust me it is worth every single penny. When you no longer feel sick or nauseating every time you step out of the car in the garage, you know you made the right decision.
- Support all sizes of garage thanks to the 70-pint performance that cover up to 4,500 square feet of room size.
- Big collection tank plus direct gravity drainage.
- Auto shut-off, auto defrost, and low temperature operation with 24-hour timer.
- Energy-efficient at an average of 48 dB noise level.
- Expensive without including the extra pump.
- Bulky but caster wheels are there for transporting.
- Considerably loud even if is only used in teh garage.
Before we again, let me first explain why we choose Danby DDR070BDWDB as our best 70-Pint dehumidifier. *Drum roll* It is because of the value you will get i.e. the cost. A typical 70-pint dehumidifier will cover up to 4500 sq. ft. of space in moderate damp conditions. It will also have all the compulsory controls like fan speed, timer, filter check, and humidistats. It will also have a large reservoir and back direct drain access. Safety features like auto-restart, auto-shutoff, auto defrost are all bundled in together. Danby DDR070BDWDB checks all that without compromising on the design, build quality or features.
Here comes the bad part. If we want to pick a bone with Danby DDR070BDWDB, is the device can get heated up quite a bit on long operation. The hose connector is probably could do with some improvement. Noise level is on the high side, but you would expect no less for a 70-pint dehumidifier.
- Covers up to 4500 square feet of space (70-pint).
- Full feature including smart dehumidifying and room temperature display.
- Easy to use direct-drain system.
- Large 16 pints reservior.
- Generate a fair bit of heat.
- Slightly larger garden hose connector to support proper fitting.
There is some debate on why we would put Frigidaire as the best dehumidifier for home. It is identical to others yet it is not the cheapest around. The answer is actually quite simple. After we tested about 10+ 50-pint models, Frigidaire FAD504DWD stands out the most with its consistent performance. The conventional body with front inlet enables smooth, uninterrupted dehumidification. The bigger than average lower bucket slides in and out perfectly so you will hardly experience any water spill. The removable antibacterial filter can also be taken out with ease which cannot be said very often on other models.
Frigidaire FAD504DWD 50-pint has everything you need to be here. From the multiple controls with digital display, turbo speed, removable filter, and autonomous safety +. The slow defrosting can be annoying sometimes but if your home is not in freezing condition, the dehumidifier will work just fine.
- Outstanding dehumidification performance.
- Excellent germs capturing antimicrobial mesh filter.
- Beautiful SpaceWise design with carrying handle.
- 6 ft. three-prong power cord included.
- Slightly noisy higher speed.
- Outdated controls (see image).
Tosot GDN30AZ-A3EBA2C 30 Pint Dehumidifier is the mini version of the bigger 70-pint unit. Besides being smaller and lighter, everything else is identical. From full drainage mode, low-temperature operation with auto de-ice, and auto cut-off from overflow. So why would you pick this over the former that we mentioned? The cheaper price tag of course. If you are planning to operate the dehumidifier in a small room, pick a smaller 30-pint unit. It will consume less energy and still gets the job done swiftly.
So what is not so great about Tosot GDN30AZ-A3EBA2C? It replicates everything from the higher-spec model including the bad side. First, the pricing is relatively steep for a 30-pint model, then there is the floor condensation will happen on and off. Lastly, the noise level is good but given the output is way less, we except it could be a little bit softer.
- Tosot renowned build quality.
- Solid 30-pint dehumidifying performance (1500 sq. ft.).
- Low noise output at all speeds.
- Large front bucket with clear indicator.
- Only slightly smaller than its 70-pint counterpart.
- Occasionally it will emit condensation underneath.
How To Pick The Right Size Dehumidifier?
To know what size of dehumidifier you need, first, you will need to know your room size and humidity level. The larger the room size, the bigger the capacity dehumidifier you will need. As a general guideline, dehumidifiers are separated into the 3 following groups.
- Small (30-pints) - Cover between 500-1,500 square feet of room size depending on wetness.
- Medium (50-pints) - Cover between 1,000-2,500 square feet of room with the lower figures for an extremely wet room.
- Large (70-pints) - Cover wet room between 1,500-2,500 square feet of space.
As you can see, the wetness of a room also affects the dehumidifier's overall dehumidification coverage. You can learn more about How To Choose The Right Dehumidifier with Room Size Chart here..
What Is The Ideal Humidity Level?
The optimum humidity level can vary depending on many factors. For healthier breathing, we recommend maintaining it between 35-55% humidity. This would keep mold, mildew, dust mites away and prevent them from prospering. If you are unsure what your current room relative humidity (RH) is, get a hygrometer that would cost no more than 10-20 dollars.
How Do I Get The Most Out of My Dehumidifier?
It is time to put your dehumidifier to work and unleash its full potential. There are a lot of ways you can get the best out of a dehumidifier without resorting to spending more money. Here are 7 great tips to look out for.
- Avoid operating the device below the recommended temperatures (65 °F degrees).
- Place the dehumidifier as close to the intended space as possible.
- Make sure there is no blockage on the air ventilation.
- Keep 1-2 feet distance between walls and sofa.
- If a removable filter is included, wash it monthly to reduce contaminants from infiltrating.
- Use a wet cloth and gently clean the ventilation to remove dust and other blockages.
- Gently clean the defrosting sensor (if there is) from dust with a cotton swab.
- If there are damaged parts or electrical faults, send it to the service center rather than fixing yourself.
How Long Should a Dehumidifier Run Per Day?
A dehumidifier should run for a minimum of 12 hours per day depending on wetness conditions. If the room is wet or extremely wet (above 85% humidity), you will need to leave it running for more than 24 hours. Remember to empty the water bucket as a dehumidifier will not work once the bucket is full. Otherwise, switch it to the continuous mode that relies on a built-in pump or gravity drainage that pump the collected water straight to a drain.
Will a Dehumidifier Help Cool a Room?
A dehumidifier will help cool down a room by reducing the surrounding dampness. However, it will not impact the actual temperature as it is merely drawing the moisture away from the air. When the air is less humid, our body heat will fall thus we will feel much cooler than the temperature has suggested. Consider running an air conditioner at the same time as a dehumidifier to speed up the whole cooling process.
How To Choose The Best Dehumidifier for Home Use
Choosing the right dehumidifier is equally as important as choosing the ideal home. You will want to get the best out of the dehumidifier while not spending extravagantly on it. Then there is a lot of upkeeping factors like water clearing, maintenance to consider. So, if you already decided to go rogue and choose a dehumidifier on your own, look for the pointers below.
- Durability - No matter if is a mini or a full-size dehumidifier, it is essential to have a dependable build quality. Check out the review of the model reliability for long-term operation. You do not want it to break down halfway during the summer.
- Pricing - Besides comparing the dehumidifier reputation and features, the price tag should also be a factoring point. Why spend extra dollars when product A offers the spec similar to product B.
- Drainage options – Barring the mini dehumidifiers, most standalone models will have this covered. A collection bucket and drainage hose connector is a must, but a built-in pump is optional.
- Power consumption - The less power it consume, it less electricity it will use. So pick a similar category dehumidifier that has low energy consumption. An Energy Star logo is a good indicator.
- Noise level - Nobody likes loud background noise, particularly on night time. If you plan to run a dehumidifier in bedroom or living hall, pick a silent unit that you're comfortable with.
- Timer and washable filter - Most dehumidifiers will have this 2 features but do look out for them.
- Safety features – Auto defrost, auto-restart and auto shut-off is a standard feature that should not be overlooked. It will restart the device after a blackout, stop the device once the bucket is full, and prevents the coil from freezing.
- Low-temperature operation – A passive feature for winter use that is available on most dehumidifier.