Pure n Natural Blog

Best Humidifier for Grow Room Setup - 2025 Updated

Written by David Allen | Feb 6, 2019

Whether starting from seedlings or clones, the biggest thing affecting a young cannabis plant’s growth is the room’s climate. In the first couple of weeks, plants need steady temperatures between 70 and 80-degrees Fahrenheit with Relative Humidity (RH) around 65-70%. For most, getting humidity and temperature lower is a daily challenge, but young plants need higher numbers to promote vigorous growth. When the plants are freshly propagated they don’t have roots yet to bring in enough water to support themselves so they rely on the air’s RH to both provide water and create external pressure that acts as a sort of seal for locking moisture in the leaves. Once the roots begin to develop, humidity is gradually lowered telling the plant to search for water with additional root growth.

It all sounds quite simple on paper but even the most experienced grower will struggle without the right tools in their grow room or propagation tent. For consistent success, you’ll want to have a humidifier (or two - remember to always have redundancy built into your setup in case any equipment fails) on hand to get your cuttings off and running without missing a beat. Investing in a humidifier for your young plants will more than pay for itself over time with increased plant size, yields, and faster root development.

We’ve already put together a guide explaining the different types of humidifiers on the market which should help you decide what will be best for your setup. Feel free to take a moment to refresh your memory on humidifier-type pros and cons then let’s take a look at some great, Pure n Natural options.

 

Determining the Size of Your Space

A little simple math of “Length x Width x Height” will give us the room’s square footage which we’ll need to know for selecting the right humidifier size. It may seem like bigger is better, but consider this: You wouldn’t bring a jackhammer to open a jar of mustard in the same way you wouldn’t bring a teaspoon to quarry rocks. The right tool for the job will always yield better results.

 

Small humidifiers 300 square feet
Medium humidifiers 350-500 square feet
Large humidifiers 550-1000+ square feet

 

What Features Do You Need?

Automation is almost always better, but of course, it also costs more money upfront. At a minimum, every humidifier you consider should have a built-in hygrometer to measure the room’s RH and keep it consistent at your desired levels or be able to link to an external hygrometer that controls your humidifier’s output. Noise levels, filtration types, and warm mist versus cool mist will all be specific to the needs of your individual growing space and preferences. It may seem complicated but we’ll try to make this as easy as possible with some featured humidifiers in each size range with some basic specs and notable features. Let’s begin.

 

1. EBAC WM150 Wall Mountable Dehumidifier

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Overview:
Designed for spaces where floor space is at a premium, the WM150 is engineered to be wall-mounted. This makes it an excellent choice for indoor grow rooms, offices, or smaller commercial spaces.

Pros:

  • Space-Saving Design: Wall-mounted installation frees up floor space.
  • Aesthetically Pleasing: Blends into the wall for a cleaner look.
  • Easy Installation: Ideal for environments where equipment must be out of the way.

Cons:

  • Limited Capacity: May not be suitable for larger spaces if high capacity is needed.
  • Installation Required: May necessitate professional installation depending on your setup.

 

2. EBAC PD200 Swimming Pool Dehumidifier

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Overview:
Specifically engineered for swimming pool environments, the PD200 is built to handle the high humidity and corrosive conditions often found near pools.

Pros:

  • Specialized Design: Ideal for pool decks and indoor pool facilities.
  • Durability: Constructed to withstand corrosive pool environments.
  • High Performance: Effectively manages moisture in challenging settings.

Cons:

  • Limited Versatility: Designed exclusively for pool applications—not ideal for general indoor use.
  • Niche Use: May offer features unnecessary for non-pool environments.

 

3. Watchdog NXT60 Crawl Space Dehumidifier

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Overview:
The NXT60 is a compact unit built for tight spaces like crawl spaces. With a moderate capacity suited to these confined areas, it’s designed for efficiency where access is limited.

Pros:

  • Compact Size: Perfect for the restricted dimensions of crawl spaces.
  • Energy Efficient: Optimized for low-power consumption in smaller areas.
  • Quiet Operation: Suitable for areas where noise is a concern.

Cons:

  • Lower Capacity: Not designed for larger basements or high-humidity spaces.
  • Limited Application: Best reserved for crawl spaces only.

 

4. Watchdog NXT85 85-Pint Basement and Crawl Space Dehumidifier

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Overview:
This model steps up the capacity to 85 pints, making it versatile for both basements and crawl spaces. It’s engineered to handle moderate to high moisture loads in residential or commercial settings.

Pros:

  • Increased Capacity: 85-pint rating makes it suitable for larger areas than the NXT60.
  • Versatile Use: Can be used in both basements and crawl spaces.
  • Reliable Performance: Provides consistent moisture removal for moderate-sized areas.

Cons:

  • Potential Noise: May operate louder compared to smaller models.
  • Installation Flexibility: Not as compact as the NXT60, so placement options may be more limited.

 

5. Watchdog NXT85C 85-Pint Basement and Crawl Space Dehumidifier with Condensate Pump

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Overview:
Building on the NXT85’s strengths, the NXT85C includes a built-in condensate pump, which simplifies water drainage—especially useful for setups where manual emptying is impractical.

Pros:

  • Convenience: Integrated condensate pump eases drainage and maintenance.
  • Same Capacity as NXT85: Delivers 85-pint performance with added functionality.
  • Suitable for Basements/Crawl Spaces: Great for both residential and small commercial applications.

Cons:

  • Higher Cost: The added pump functionality may increase the price.
  • Additional Maintenance: The pump may require extra care or occasional service.

 

6. EBAC AD850E Commercial Dehumidifier

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Overview:
The AD850E is a commercial-grade dehumidifier designed for larger spaces or industrial applications. It offers robust performance and is built to handle substantial moisture loads.

Pros:

  • High Capacity: Suitable for large spaces, commercial facilities, or heavy-duty applications.
  • Industrial-Grade Build: Durable construction designed for demanding environments.
  • Advanced Features: Likely includes sophisticated controls for precise moisture management.

Cons:

  • Cost: Generally more expensive due to its commercial design and higher capacity.
  • Size and Weight: Its industrial design might be less suitable for residential aesthetics or small spaces.

Making Your Decision

When choosing the right dehumidifier, consider the specific needs of your space:

  • For Tight or Visible Spaces: The EBAC WM150 is ideal due to its wall-mountable, space-saving design.
  • For Specialized Pool Environments: The EBAC PD200 is built to handle the unique challenges of swimming pool areas.
  • For Crawl Spaces: The Watchdog NXT60 is a great choice for smaller, confined spaces.
  • For Basements and Versatile Use: The Watchdog NXT85 offers a balance of capacity and versatility.
  • For Convenience in Drainage: The Watchdog NXT85C adds the benefit of a condensate pump.
  • For Large or Industrial Settings: The EBAC AD850E stands out with its high capacity and commercial-grade features.

 

Ready to Optimize Your Environment?

Choosing the right dehumidifier can significantly impact the comfort and efficiency of your space. To explore these options further and find the perfect match for your needs—whether you’re looking for improved cool air energy, better moisture control, or the right air conditioning unit for your environment—visit Pure N Natural Systems today.

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