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Commercial Dehumidifiers

PREAIR provides types of commercial dehumidifiers for sale. LGR dehumidifiers are perfectly applied in water damage restoration. PR series dehumidifiers can dehumidify in many fields. The ideal humidity level for people is generally between 30% to 60%. When the air is too dry, which typically occurs during the winter months or in arid climates, it can lead to dry skin, throat irritation, and other respiratory problems. Conversely, when the air is too humid, which is common during the summer months or in tropical climates, it can make people feel uncomfortable, sticky, and sweaty, and also promote the growth of mold and mildew. Maintaining a comfortable humidity level in indoor spaces can be achieved through the use of humidifiers and dehumidifiers. Humidifiers add moisture to the air, while dehumidifiers remove excess moisture. It is important to note that excessively high or low humidity levels can also have adverse effects on certain materials, such as wood and electronics, so it is important to monitor and control humidity levels appropriately.


Types of Commercial Dehumidifiers

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When dealing with water damage restoration, using an LGR (Low Grain Refrigerant) dehumidifier and a centrifugal air mover can significantly expedite the drying process. Begin by assessing the extent of the water damage. Identify affected areas and determine the severity of moisture saturation.
1.Remove Standing Water:
If there's standing water, use a water pump to remove as much water as possible.

2.Place LGR Dehumidifier:
Set up the LGR dehumidifier in the affected area. LGR dehumidifiers are highly effective in removing moisture from the air, even in low humidity conditions. Place the unit centrally to maximize coverage.

3.Use a Centrifugal Air Mover:
Position the centrifugal air mover strategically to enhance the evaporation process. These air movers are designed to deliver high-velocity airflow, accelerating the drying of wet surfaces.

4.Create Air Circulation:
Arrange the air mover to create a circular airflow pattern, directing air across wet surfaces, including walls, floors, and affected contents. This helps in efficient moisture evaporation.

5.Move Air Mover as Needed:
Periodically reposition the air mover to target different areas, ensuring comprehensive drying coverage.
Water Damage Restoration
6.Monitor Humidity Levels:
Regularly monitor humidity levels using a hygrometer. Adjust the settings on the LGR dehumidifier to maintain optimal humidity levels for effective drying.

7.Use Multiple Units if Necessary:
Depending on the size of the affected area, consider using multiple LGR dehumidifiers and air movers to expedite the drying process.

8.Ventilation:
Ensure proper ventilation in the space. If conditions permit, open windows and doors to facilitate the exchange of moist indoor air with drier outdoor air.

9.Final Inspection:
Once the affected area shows signs of significant drying, conduct a final inspection. Ensure that all surfaces are dry to prevent mold and mildew growth.

10.Document the Restoration Process:
Keep detailed records of the restoration process, including before-and-after photos, humidity levels, and the duration of equipment operation. This documentation may be valuable for insurance claims and future reference.


Dehumidifier Maintenance

Preair LGR Dehumidifier Maintenance
Preair PR Dehumidifier Maintenance

FAQs about Dehumidifier

  • How many watts is a dehumidifier?

    The power consumption of a dehumidifier can vary widely depending on its capacity, features, and the manufacturer's design. Generally, residential dehumidifiers can range from about 300 watts for smaller units to 1,000 watts or more for larger, higher-capacity models.
  • What should the temperature be on a dehumidifier?

    The operating temperature of a dehumidifier can vary depending on the specific model and type, but most standard refrigerant-based dehumidifiers are designed to operate effectively in temperatures ranging from approximately 41°F (5°C) to 95°F (35°C).
  • How does a dehumidifier humidistat work?

    A humidistat in a dehumidifier is a sensor that measures the relative humidity (RH) level in the air. It works in conjunction with the dehumidifier's control system to maintain a desired humidity level set by the user. Here's how it works:
    Sensing Humidity Levels
    User-Set Humidity Level
    Comparison and Control
    Cycling On and Off
    Maintaining Constant Humidity


    The efficiency and effectiveness of the dehumidifier's humidistat depend on factors like the accuracy of the sensor, the responsiveness of the control system, and the overall performance of the dehumidifier. It's important to choose a quality dehumidifier with a reliable humidistat for effective humidity control in your environment.
  • What features to look for in a dehumidifier?

    When selecting a dehumidifier, it's important to consider several features to ensure it meets your specific needs. Here are some key features to look for:
    Capacity: Determine the size of the area you need to dehumidify.
    Humidistat: This feature allows you to set and control the desired humidity level.
    Auto-Defrost: This feature is especially important if you plan to use the dehumidifier in a colder environment.
    Continuous Drainage Option: This is useful if you want the unit to run without needing to empty a water tank regularly.
    Portability and Wheels: Easy for users to move the dehumidifier around.
    Filter Indicator Light: Alerts you when it's time to clean or replace the filter.
    Noise Level: If noise is a concern, look for models with lower decibel ratings. Quiet operation may be particularly important if the dehumidifier will be used in a bedroom or living area.
    Energy Efficiency: Save you money on your energy bills in the long run.
    Timer and Delay Start: Allow you to set specific times for the dehumidifier to operate.
    Auto-Restart: Ensures that the dehumidifier resumes operation at your preset settings once power is restored.
    Built-In Pump: It allows for more flexible drainage options.
    Digital Display and Controls: Make it easier to monitor and adjust settings.
    Air Filtration: Help improve air quality by capturing dust, allergens, and other particles.
    Warranty: Preair’s 15-month warranty period can provide extra peace of mind.
  • Should dehumidifiers make noise?

    Yes, it is normal for dehumidifiers to make some level of noise during operation. This noise is primarily generated by the fan and the compressor components of the dehumidifier.
    While some noise is to be expected, excessively loud or unusual noises can indicate a problem with the dehumidifier and may require attention or maintenance. If you notice any sudden changes in the noise level, it's a good idea to check the unit for any loose components, debris, or signs of wear and tear. 

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