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Free Shipping on most orders over $175 | Sales Tax in NJ only
Free Shipping on most orders over $175 | Sales Tax in NJ only
Compact, white Quest 100 high-efficiency dehumidifier with a digital control panel on top.

Quest 100 120V High Efficiency Dehumidifier - 100 Pints/Day

by Quest
$1,999.95 - $1,999.95
$1,999.95
$1,999.95 - $1,999.95
$1,999.95

🌿 Free shipping on $175+ orders in the USA

🌿 Ships to Canada, AK & HI. Call us for info

🌿 Price match guarantee, details here

Energy Rebates & Bulk Pricing Available

SAVE BIG on your grow setup! Email or call us at (973) 206-7590. For rebates eligibility, click here.

Cash Payment Discounts & Financing Options

Get an additional 3% off when you pay by ACH, Money, or Zelle. Select your option at check out.

We accept all major credit cards, crypto and Paypal 0% credit plans. More details here.

Full Manufacturer’s Warranty

You buy it, we back it! Your purchase is fully covered with a manufacturer’s warranty. More details here.

The Quest 100 delivers compact, high-efficiency dehumidification with M-CoRR™ Technology, R-454B eco-friendly refrigerant, and MERV-13 filtration for cleaner air.

Get to Know the Quest 100 120V High Efficiency Dehumidifier - 100 Pints/Day

When it comes to compact, high-efficiency dehumidification, the Quest 100 Grow Dehumidifier delivers powerful moisture control in a space-saving design. Re-engineered with eco-friendly R-454B refrigerant, this unit offers energy savings, superior air quality, and a lower environmental impact—all while fitting seamlessly into small grow rooms, drying areas, and climate-controlled grow environments.

Built with Quest’s patented M-CoRR™ Technology, the Quest 100 maximizes efficiency by recycling excess heat, reducing overall power consumption and cutting long-term operating costs. With premium MERV-13 filtration, this dehumidifier traps mold, bacteria, and airborne contaminants with 65% more effectiveness than MERV-8 and 20% more than MERV-11, keeping your plants, crew, and equipment protected.

Its corrosion-resistant base ensures long-lasting durability, even in wet environments. And with its compact footprint, the Quest 100 offers versatile placement options, whether you need it in a small grow tent, drying room, or as a supplemental unit in a larger space.

Features

  • Compact unit – For mobility and a small footprint that won’t interfere with operations.
  • UL rated and ETL listed – The highest safety standard.
  • MERV 13 filtration – Superior filtration removes more harmful contaminants from the air, such as dust, pollen, and mold, as well as bacteria and some viruses.
  • Widest operating range – Of temperature and relative humidity.
  • Auto restart – Unit automatically defaults to prior settings in the event of a power outage.
  • Digital control – Digital control interface with external control option.
  • Precision control – Easy-to-use controls deliver precise variable grain depression to meet requirements of any application.
  • Overhead or ground placement – Built to fit what works for your space.

What's Included?

  • Dehumidifier
  • 4 x Leveling Feet
  • Drain Hose
  • Drain Adapter 3/4” NPT PVC to 5/8” Hose Barb
  • Filter 1” x 12” x 14”

Download Resources

Close-up of the digital control panel on a white Quest 100 high-efficiency dehumidifier powered by M-CORR Technology.

M-CoRR Technology

This patented multi-coil design provides the highest efficiencies available on the market, saving energy and dollars.

Freestanding Installation

The Quest 100 Dehumidifier can be installed on a level, stable surface near a suitable drain and within reach of a 115V electrical outlet (9’ cord, 15A circuit required). Ensure proper clearance for airflow, filter access, and duct connections. If placed in a flood-prone area, consider suspending the unit instead, as flood damage is not covered under warranty.

Overhead Installation

The Quest 100 can be suspended using a hanging kit attached to structural members, but must be supported from underneath and not hung from its sides or ends. If installed overhead, leveling feet should be secured after mounting. Suspending the unit is recommended in areas where flooding is a risk to prevent damage.

Specifications

Part Number: 4044590

Dehumidifier Type: Refrigerant Dehumidifier

Water Removal:

@ 80°F | 60% RH: 100 Pints/Day

@ 75°F | 50% RH: 70 Pints/Day

Efficiency:

@ 80°F | 60% RH: 7.5 Pints/kWh

@ 75°F | 50% RH: 6.0 Pints/kWh

Energy Factor:

@ 80°F | 60% RH: 3.5 Liters/kWh

@ 75°F | 50% RH: 2.8 Liters/kWh

Current Draw:

@ 80°F | 60% RH: 5.0 Amps

@ 75°F | 50% RH: 4.4 Amps

Power Consumption: 540 Watts

BTU Ratings:

Total: 6,800 BTU

Heat of Condensation: 4,800 BTU

Motor Load: 2,000 BTU

CFM (Airflow): 280

Operating Temperature Range: 56°F Min – 95°F Max

Supply Voltage: 110-120V

Unit Dimensions: 24” L × 16” W × 14.5” H

Unit Weight: 60 lbs

Control Type: Onboard Digital Controls with Low Voltage Terminal Block

Air Filter:

MERV Rating: MERV 13

Dimensions: 12” × 14” × 1”

Recommended Breaker Size: 15 Amps

Power Cord: NEMA 5-15P (10’)

Refrigerant Type: R454B

Refrigerant Amount: 1 lb 2 oz

Drain Port Connection: 3/4” Threaded NPT

Fans: Variable Speed EC Motor

Warranty: 5-Year Limited

Who Should Use This Dehumidifier?

  • Small-space growers needing compact, efficient moisture control.
  • Sustainability-focused operations using R-454B for lower environmental impact.
  • Operators prioritizing air quality with MERV-13 filtration for cleaner environments.
  • Facilities requiring corrosion resistance for durability in wet conditions.

Best Applications

  • Indoor grow rooms maintaining optimal humidity for plant health.
  • Tight spaces benefiting from a smaller footprint and flexible placement.
  • High-humidity environments preventing mold, bacteria, and contaminants.
  • Energy-conscious facilities meeting California Title 24 efficiency standards.

Why Shop with Grow Light Central?

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

“There’s a crapload of equipment providers out there. What makes Grow Light Central so special?”

Grow Light Central is a cannabis equipment solution provider connecting you to 100+ brands and 60+ suppliers trusted and used in the best cannabis facilies across the country.

With years of cannabis growing experience, Anthony, the owner and operator, personally ensures every order is handled right. No passing you off, no runaround, just the expert service and advice you deserve.

FAQs

What’s the best humidity level for cannabis, and how does a dehumidifier help?

Seedlings thrive at 60-70% RH, vegging plants prefer 40-50% RH, and flowering needs 30-40% RH. A dehumidifier helps dial in these levels, preventing mold, mildew, and bud rot while keeping your plants healthy and maximizing yield.

What size dehumidifier do I need for my grow setup?

It depends on your grow tent or room size and how much moisture you need to pull. A 30-pint unit is great for small setups, while 50+ pint models work better for larger spaces. If you're running a big operation, go for a high-capacity unit with a built-in humidistat for full control.

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