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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. Save $1,500.00 Save $0.00
$12,999.95
$12,999.95 - $12,999.95
$12,999.95
$11,499.95
$11,499.95 - $11,499.95
$11,499.95

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

Quest

Maximize energy savings and free up amperage with a high-capacity dehumidifier built for industrial grow environments. The Quest 746 480V Grow Dehu...

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$12,999.95
$12,999.95 - $12,999.95
$12,999.95
$11,499.95
$11,499.95 - $11,499.95
$11,499.95
Save $1,500.00 Save $0.00
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.
$8,659.95 - $8,659.95
$8,659.95
$8,659.95 - $8,659.95
$8,659.95

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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$8,659.95 - $8,659.95
$8,659.95
$8,659.95 - $8,659.95
$8,659.95
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.
$5,699.95 - $5,699.95
$5,699.95
$5,699.95 - $5,699.95
$5,699.95

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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$5,699.95 - $5,699.95
$5,699.95
$5,699.95 - $5,699.95
$5,699.95
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.
$3,999.95 - $3,999.95
$3,999.95
$3,999.95 - $3,999.95
$3,999.95

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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$3,999.95 - $3,999.95
$3,999.95
$3,999.95 - $3,999.95
$3,999.95
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.
$3,659.95 - $3,659.95
$3,659.95
$3,659.95 - $3,659.95
$3,659.95

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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$3,659.95 - $3,659.95
$3,659.95
$3,659.95 - $3,659.95
$3,659.95
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.
$3,234.95 - $3,234.95
$3,234.95
$3,234.95 - $3,234.95
$3,234.95

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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$3,234.95 - $3,234.95
$3,234.95
$3,234.95 - $3,234.95
$3,234.95
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.
$2,269.95 - $2,269.95
$2,269.95
$2,269.95 - $2,269.95
$2,269.95

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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$2,269.95 - $2,269.95
$2,269.95
$2,269.95 - $2,269.95
$2,269.95
Quest 6 Series Dehumidifier Intake Duct Kit Climate Control Quest
Quest 6 Series Dehumidifier Intake Duct Kit Climate Control Quest
$750.00 - $750.00
$750.00
$750.00 - $750.00
$750.00

Quest 6 Series Dehumidifier Intake Duct Kit

Quest

Adapt your Quest 6 Series dehumidifier to ducted setups with a complete intake kit built for flexible installations. Quest Duct Kits offer easy ada...

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$750.00 - $750.00
$750.00
$750.00 - $750.00
$750.00
Quest 225 Dehumidifier Intake & Exhaust Duct Kit Climate Control Quest
$381.00 - $381.00
$381.00
$381.00 - $381.00
$381.00

Quest 335 Dehumidifier Supply & Return Duct Kit

Quest

Customize airflow on Quest 335 units with this complete supply and return duct kit for efficient, ducted installations. Quest Duct Kits offer easy ...

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$381.00 - $381.00
$381.00
$381.00 - $381.00
$381.00
Quest 225 Dehumidifier Intake & Exhaust Duct Kit Climate Control Quest
$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00

Quest 225 Dehumidifier Intake & Exhaust Duct Kit

Quest

Improve airflow control on Quest 225 units with this full duct kit built for efficient intake and exhaust configurations. Quest Duct Kits offer eas...

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$329.00 - $329.00
$329.00
$329.00 - $329.00
$329.00
Quest 746/876 Dehumidifier Exhaust Duct Kit Climate Control Quest
$288.00 - $288.00
$288.00
$288.00 - $288.00
$288.00

Quest 746/876 Dehumidifier Exhaust Duct Kit

Quest

Easily duct your Quest 746 or 876 with this exhaust kit designed for flexible, high-efficiency airflow configurations. Quest Duct Kits offer easy a...

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$288.00 - $288.00
$288.00
$288.00 - $288.00
$288.00
Quest 506 Dehumidifier Exhaust Duct Kit Climate Control Quest
$288.00 - $288.00
$288.00
$288.00 - $288.00
$288.00

Quest 506 Dehumidifier Exhaust Duct Kit

Quest

Set up ducted exhaust for your Quest 506 with this easy-install kit designed for airflow efficiency and flexibility. Quest Duct Kits offer easy ada...

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$288.00 - $288.00
$288.00
$288.00 - $288.00
$288.00
Quest 100 Dehumidifier Supply & Return Duct Kit Climate Control Quest
$219.00 - $219.00
$219.00
$219.00 - $219.00
$219.00

Quest 100 Dehumidifier Supply & Return Duct Kit

Quest

Adapt your grow room airflow with a plug-and-play duct kit made specifically for the Quest 100 dehumidifier. Quest Duct Kits offer easy adaptation ...

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$219.00 - $219.00
$219.00
$219.00 - $219.00
$219.00
Quest 5 Series Dehumidifier Supply Duct Kit Climate Control Quest
$91.00 - $91.00
$91.00
$91.00 - $91.00
$91.00

Quest 5 Series Dehumidifier Supply Duct Kit

Quest

Easily supply duct Quest 5 Series dehumidifiers with this kit designed for efficient airflow and simple installation. Quest Duct Kits offer easy ad...

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$91.00 - $91.00
$91.00
$91.00 - $91.00
$91.00
Quest 335 MERV 13 Dehumidifier Air Filter Climate Control Quest
$45.97 - $45.97
$45.97
$45.97 - $45.97
$45.97

Quest 6 Series MERV 13 Dehumidifier Air Filter

Quest

Upgrade your air filtration with this MERV 13 filter designed for Quest 6 Series dehumidifiers—requires two per unit. MERV 13 rated filters can rem...

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$45.97 - $45.97
$45.97
$45.97 - $45.97
$45.97
Quest 335 MERV 13 Dehumidifier Air Filter Climate Control Quest
$41.97 - $41.97
$41.97
$41.97 - $41.97
$41.97

Quest 335 MERV 13 Dehumidifier Air Filter

Quest

Protect your grow with this high-performance MERV 13 filter that traps up to 95% of airborne particles in Quest 335 units. MERV 13 rated filters ca...

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$41.97 - $41.97
$41.97
$41.97 - $41.97
$41.97
Quest 155 50-Hz MERV 13 Dehumidifier Air Filter Climate Control Quest
$39.55 - $39.55
$39.55
$39.97
$39.97 - $39.97
$39.97

Quest 155 50-Hz MERV 13 Dehumidifier Air Filter

Quest

Trap up to 95% of airborne particles with this MERV 13 filter built for high-efficiency Quest 155 and Dual Series units. MERV 13 rated filters can ...

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$39.55 - $39.55
$39.55
$39.97
$39.97 - $39.97
$39.97
Quest 335 MERV 13 Dehumidifier Air Filter Climate Control Quest
$39.97 - $39.97
$39.97
$39.97 - $39.97
$39.97

Quest 225 MERV 13 Dehumidifier Air Filter

Quest

Capture up to 95% of airborne particles with this high-efficiency MERV 13 filter built for Quest 225 and compatible units. MERV 13 rated filters ca...

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$39.97 - $39.97
$39.97
$39.97 - $39.97
$39.97
Quest 100 MERV 13 Standard Pleat Dehumidifier Filter Climate Control Quest
$22.97 - $22.97
$22.97
$22.97 - $22.97
$22.97

Quest 100 MERV 13 Standard Pleat Dehumidifier Filter

Quest

Boost filtration on Quest 100 units with a MERV 13 pleated filter that traps more particles for cleaner, healthier airflow. MERV-13 provides superi...

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$22.97 - $22.97
$22.97
$22.97 - $22.97
$22.97