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Desiccant Dehumidifier

Finest Desiccant Dehumidifier.

CtrlTech – High-quality Silica Gel Dehumidifier

For cold places, CtrlTech offers silica gel rotor-based desiccant dehumidifiers that can efficiently dry the air even at sub-zero degrees Celsius temperatures.

Desiccant dehumidifier with absorption principle

Why to Choose CtrlTech?

  • Dedicated team for complex designing and installation.
  • Partnership with world class desiccant dehumidifier brands.
  • Prove track record of successfully completing major desiccant dehumidification projects.
  • We know for flexible solution based approached to resolve problem.
  • Service Middle East countries with wide dehumidifier range from many years.

Tips for Using Desiccant Dehumidifiers

How silica gel dehumidifier works
  1. Your cool-season solution for a drier, healthier indoor environment
  2. Desiccant dehumidifiers are the most effective and efficient technology for use in colder climes.
  3. Preparation and installation of your dehumidifier
  4. Place the dehumidifier in the room with the most moisture.
  5. To expedite the drying process, close windows and doors.

6.Open the closet doors, especially if the wardrobes are musty and damp.

13800.00د.إ VAT

There are numerous factors to consider when it comes to perforated ..



Category: Desiccant dehumidifier.

Options for Draining

Water tank option - remove and empty water tank after each filling (recommended)

Continuous drainage hose option - allows you to bypass the dehumidifier's water tank, eliminating the need to physically empty it each time it fills. Water is drained by gravity, which means that the hose outlet must be lower than the dehumidifier drainage outlet.

Drying Techniques

Deep-down Initial Drying

Begin by thoroughly drying the rooms in your home using the ‘Dry' option.

This mode will eliminate excess moisture from your furnishings, walls, and ceiling, restoring your area to its natural dry state.

We recommend the following measures to accomplish deep down drying in each room:

  1. Select the ‘Dry Mode' option and push the ‘High' button. This will allow the dehumidifier to drop the humidity to approximately 40% –45% RH, resulting in faster and more effective drying.
  2. When the humidity target is met, the dehumidifier will stop dehumidifying, but the fan will continue to run for ventilation while consuming minimal electricity.
  3. When the water tank is full, the dehumidifier will shut down automatically.
  4. Continue using the machine after emptying the water tank.
  5. Continue the drying procedure in each room for 1–3 days. This time can vary based on the intensity of the moisture, the size of the room, and the temperature.

Note 1: Reduced moisture collection in the water tank may indicate that the dehumidifier has removed or nearly removed the surplus moisture, for example, the dehumidifier's water tank has filled once or twice, but it takes several hours to collect a very little amount of water.

Note 2: When dehumidifying, you may see warm dried air flowing out of the air outlet, but only chilly air when ventilating.

Note 3: Before emptying the water tank, allow the dehumidifier to rest for 2-3 minutes. This allows the moisture to drain completely before removing the water tank.

Follow-up or Maintenance Drying

Option 1: This will help to keep your space and furnishings from relapsing to high moisture levels. The frequency of this drying may vary depending on the weather and season - normally from a week or two apart in wetter seasons to several months apart in dryer seasons. We propose using the same processes as before (first deep-down drying) for frequent follow-up drying, but just running the dehumidifier for 8 – 12 hours at a time.

Option 2: You can also opt to run the dehumidifier constantly in 'Low' or 'Auto' Dry Mode (after the deep-down drying process has been completed).

Some of the Reasons for Doing so Could be:

a) Ongoing safeguarding of property, collectibles, and other valuables such as stamps, literature, artwork, and so on.

b) Freshen up after being away from home/room for an extended period of time

If you want to attain continuous constant humidity levels, we propose taking the following steps:

Select the ‘Dry Mode' button and push the ‘Low' or ‘Auto' button. This will allow the dehumidifier to maintain the humidity level at around 55-60% RH for as long as you want. The fan will run at a low speed when in ‘Low' mode. When set to ‘Auto,' the fan will run at high speed when the humidity is high and then return to low speed when the humidity is low.

Laundry Mode is Used to Dry Garments.

This mode is perfect for drying clothes or other household items. The “Turbo” key promotes faster drying by automatically supplying hot air that can be directed in line with the “swing” louvres.


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A desiccant dehumidifier removes moisture from the air by the use of a silica wheel that attracts moisture as the air passes through the machine. These dehumidifiers are intended for usage in extreme settings, often extremely cold areas, where compressor dehumidifiers are ineffective.

Desiccant dehumidifiers resemble classic compressor dehumidifiers in appearance. They remove moisture in the same way as compressor dehumidifiers do, but they operate in a completely different manner on the inside.

Air is drawn into the units and then passed across a desiccant wheel, which extracts moisture from the air. Typically, desiccant wheels are composed of silica gel, which attracts and absorbs moisture. The machine then pushes air back into your space after the wheel extracts moisture from the air.

Unlike compressor dehumidifiers, desiccant dehumidifiers do not use an internal bucket to collect moisture. A tiny portion of the air that enters the unit is diverted to serve as "reactivation air." Warmed reactivation air is pumped back over the desiccant wheel. Due to the fact that warm air can store more moisture than cool air, the warm reactivation air absorbs moisture and exhausts it through ducts.

Desiccant dehumidifiers are ideal for places that experience extreme cold or require a constant (very low) humidity level. Historically, they have been employed in locations where compressor dehumidifiers are impractical.

Several examples include the following:

  1. Basements that are not heated
  2. Garages
  3. Boats \ Campers
  4. Freezers/refrigerators for commercial use
  5. Indoor growing chambers
  6. Warehousess
  7. Factories


  1. Temperature Extremes
  2. The primary advantage is that they perform effectively in locations with severe temperatures (-4 to 104 degrees) and low humidity levels where conventional dehumidifiers do not. They can help maintain healthy humidity levels in unheated houses and other unheated places such as garages, campers, and commercial freezers/refrigerators.
  3. No Drainage of Moisture
  4. Another significant advantage is that there is no draining. Moisture is removed from the units via ducts.


  1. Costs Up Front
  2. These dehumidifiers are more expensive initially and may require professional installation, depending on the ductwork and location.

Compressor dehumidifiers remove more moisture than desiccant dehumidifiers at most normal temperatures (warm, excessively damp rooms), but their effectiveness and ability to remove moisture decreases as the temperature drops. Most do not operate at all below roughly 41 degrees and do not achieve their maximum moisture removal capacity.

Desiccant dehumidifiers come in handy in this situation. They are capable of removing moisture from the air when temperatures fall below freezing – even below zero degrees Fahrenheit. If utilised in temperatures that low, compressors will eventually accumulate frost and freeze.

When it comes to removing excess moisture from basements or crawl spaces, classic compressor dehumidifiers are frequently the best option. They rapidly evaporate significant volumes of moisture and operate effectively in the majority of circumstances.

Consider a desiccant dehumidifier if you need to remove moisture from rooms with severe temperatures, such as unheated spaces, garages, warehouses, or commercial refrigerators.

Desiccant dehumidifiers, unlike compressor dehumidifiers, do not collect moisture in a bucket. The majority of desiccant dehumidifiers are ducted, releasing moisture via an air steam. This is referred to as a "reactivation" air stream, and it forces moist air out of the unit and via the ducts to another place.

This type of dehumidifier works by utilising absorbent desiccant materials (most commonly silica gels) that absorb moisture directly from the air over time.

The more mechanical version draws air in, passes it through a rotor containing the moisture-absorbing desiccant material, and then releases the dry air back into the atmosphere.

The silica gel used in this case is mostly recyclable; once saturated, it can be dried with heat and reactivated to collect additional moisture.

In general, the refrigerant type has a relatively long lifespan, lasting years before finally failing. Purchasing a good unit should ensure at least a year of reliable performance, though this will vary depending on the make and quality, as some units can last up to five years.

On the other hand, the desiccant type has a significantly longer lifespan than the refrigerant type due to the system's fewer moving parts. The only significant replacement you would have to contend with on a regular basis is the purchase of silica gel as soon as the current supply runs out.

Nothing beats the efficiency and power of desiccant dehumidifiers when drying in cool temperatures or when drying dense materials such as hardwoods, brick, or plaster-and-lath construction. This is why: Desiccant dehumidifiers generate significantly dryer air than refrigerant dehumidifiers, which makes them ideal for extracting moisture from dense materials and complex construction assemblies.

Effective drying in low relative humidity conditions. Desiccants absorb moisture down to 0% relative humidity. A standard refrigerant dehumidifier will cease to operate efficiently at about 30% relative humidity, while a Low Grain Refrigerant unit will begin to perform poorly at about 20%.

Cold-weather performance. In low temperatures, desiccants easily outperform refrigerant dehumidifiers. Under those conditions, refrigerants frequently freeze or remain in defrost mode for prolonged periods of time. In either case, they are not removing a significant amount of moisture from the air. Desiccants, on the other hand, continue to absorb moisture at 0° F. Desiccant drying is particularly effective (and cost-effective) in unheated garages, crawlspaces during the winter, and unfinished basements.

Drying dense materials more efficiently. Desiccants are ideal for extracting bound water from dense materials such as hardwoods, plaster, brick, and concrete due to their ability to produce such low RH values. Additionally, they can effectively dry down construction assemblies such as walls, stairs, and cabinetry.

Desiccant dehumidifiers can be critical components of your drying strategy, even more so during the colder, drier months. Consider adding a desiccant to your professional restorative drying equipment line if you do not already have one.

Dehumidifiers are used extensively throughout the country, whether they are small portable units or larger centrally installed systems that circulate air through your ductwork. While their primary function is to remove excess humidity from your home, they provide numerous benefits.

Excessive humidity in your home can result in a slew of complications. It is possible that this is causing a damp or musty odour to emanate from your basement. It is possible that this is causing condensation on your interior windows. It's possible that it's causing mould to grow on your walls or curtains. Whatever symptoms you are experiencing, a dehumidifier can alleviate them all.

However, if a dehumidifier is used excessively in one room or during the winter, the humidity level can fall dangerously low. Yes, you do not want your home's humidity level to be too high, as this can result in mildew, dust mites, fungi, and even mould. These allergens can then affect family members, causing itchy/watery eyes, coughing, sneezing, and, in severe cases, difficulty breathing. The good news is that all of this can be remedied by using a dehumidifier, as previously mentioned.

If your humidity level is too low, you may experience a variety of other symptoms. These symptoms may include dry skin that becomes cracked and bleeding over time. Additionally, it can result in the dehydration of your respiratory tract. This increases your susceptibility to infections like colds, sinus infections, and even the flu.

Your home's humidity level must be balanced. Between thirty and fifty percent humidity is the recommended and most comfortable level. Any higher or lower than this value, you may begin to experience some of the symptoms mentioned previously. This is why, during the late spring, summer, and early fall, you should run a dehumidifier. Then, as the temperature drops, you can store your dehumidifier and replace it with a humidifier.

Desiccant Dehumidifier Video