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Free Shipping on most orders over $175 | Sales Tax in NJ only

Quest Climate

Quest Climate makes the most energy-efficient commercial dehumidifiers on the market—perfect for grow rooms, curing spaces, and greenhouse environments. Their lineup includes heavy-duty overhead units like Quest 335 and 746 (345–746 pints/day) along with portable Hi‑E Dry models for flexible placement. These units use patented multi-coil M‑CoRR tech to remove more moisture per kWh, produce less heat, and protect HVAC loads.

Built with MERV‑13 filtration, digital controls with filter alerts, and overhead mounting options, these dehumidifiers streamline climate control while reducing mold, pests, and energy costs.

Find the right dehumidifier for your facility with our detailed use case guide.

Image of the The Quest 746 480V featuring high capacity, 730 pints/day, 8.3 pints/kWh efficiency, multi-coil tech, digital controls, low amp draw, and compact design.
$12,999.95 - $12,999.95
$12,999.95
$12,999.95
$12,999.95 - $12,999.95
$12,999.95

Quest 746 480V High-Capacity Dehumidifier - 730 Pints/Day

Quest

A high efficiency 480V commercial dehumidifier delivering massive moisture removal lower energy costs and compact installation for demanding contro...

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$12,999.95 - $12,999.95
$12,999.95
$12,999.95
$12,999.95 - $12,999.95
$12,999.95
Top-down view of a white Quest 506 high-capacity dehumidifier showing the black exhaust grill, green carrying handles, and the Quest logo.
Quest 506 high-capacity dehumidifier with a large black intake grill featuring a hexagonal pattern, green handles on top, and the Quest logo.
$8,829.95 - $8,829.95
$8,829.95
$8,829.95 - $8,829.95
$8,829.95

Quest 506 High-Capacity Dehumidifier - 506 Pints/Day

Quest

Cut energy use and control humidity precisely with a dehumidifier engineered for high-volume grow operations. The Quest 506 Grow Dehumidifier is bu...

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$8,829.95 - $8,829.95
$8,829.95
$8,829.95 - $8,829.95
$8,829.95
Rear view of a white Quest 335 high-efficiency overhead dehumidifier showing the exhaust vent with a black honeycomb grill and the black power cord.
Quest 335 high-efficiency overhead dehumidifier with a digital control panel and the Quest logo prominently displayed. The air intake filter is visible on the side.
$5,799.95 - $5,799.95
$5,799.95
$5,799.95 - $5,799.95
$5,799.95

Quest 335 High Efficiency Overhead Dehumidifier - 345 Pints/Day

Quest

Control humidity efficiently and free up power with a high-capacity dehumidifier built for 277V and 208/230V grow environments. The Quest 335 Grow ...

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$5,799.95 - $5,799.95
$5,799.95
$5,799.95 - $5,799.95
$5,799.95
Close-up of the digital display on a Quest HI-E DRY dehumidifier, showing the current relative humidity (26%) and setpoint (50%). Control buttons are visible below the screen.
Front view of a tall, white Quest HI-E DRY 195 portable dehumidifier on wheels with a digital control panel at the top and the Quest HI-E DRY logo on the front.
$4,099.95 - $4,099.95
$4,099.95
$4,099.95 - $4,099.95
$4,099.95

Quest HI-E DRY 195 120V Portable Dehumidifier - 195 Pints/Day

Quest

Control humidity in large grow spaces with a portable high-capacity unit that pumps water away—no drain or install required. For growers who need s...

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$4,099.95 - $4,099.95
$4,099.95
$4,099.95 - $4,099.95
$4,099.95
White Quest 225 overhead dehumidifier with the Quest logo and visible air filter panel.
White Quest 225 high-efficiency overhead dehumidifier showing the air intake filter and digital control panel.
$3,799.95 - $3,799.95
$3,799.95
$3,799.95 - $3,799.95
$3,799.95

Quest 225 208/230V High Efficiency Overhead Dehumidifier - 225 Pints/Day

Quest

Slash energy costs and control humidity with this high-capacity overhead dehumidifier designed for sealed grow rooms and hydro setups. The Quest 22...

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$3,799.95 - $3,799.95
$3,799.95
$3,799.95 - $3,799.95
$3,799.95
Back view of a white Quest 155 overhead dehumidifier showing the exhaust grill, power cord, and a product label.
White Quest 155 overhead dehumidifier with visible air filter and the Quest logo.
$3,299.95 - $3,299.95
$3,299.95
$3,299.95 - $3,299.95
$3,299.95

Quest 155 Overhead Dehumidifier - 155 Pints/Day

Quest

Protect your grow with a compact dehumidifier that delivers pro-level efficiency, flexible setup, and reliable performance day in and day out. The ...

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$3,299.95 - $3,299.95
$3,299.95
$3,299.95 - $3,299.95
$3,299.95
White Quest 100 high-efficiency dehumidifier with digital display, brand logo, and air filter visible.
Compact, white Quest 100 high-efficiency dehumidifier with a digital control panel on top.
$2,299.95 - $2,299.95
$2,299.95
$2,299.95 - $2,299.95
$2,299.95

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

Quest

Control moisture in tight grow spaces with this compact 100-pint dehumidifier designed for energy efficiency and clean air. When it comes to compac...

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$2,299.95 - $2,299.95
$2,299.95
$2,299.95 - $2,299.95
$2,299.95