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

The Quest 335 Grow Dehumidifier delivers powerful moisture removal, advanced energy efficiency, and superior air filtration, all in a high-voltage, low-amperage design built for commercial grow rooms and industrial-scale cultivation facilities.

This model perfectly fits grow operations with existing 277V or 208/230V electrical infrastructure, often installed for lighting systems. With lower amperage draw, it frees up power for other critical equipment while still delivering 345 pints per day of water removal at 80°F and 60% RH. Built with Quest’s patented M-CoRR Technology, the Quest 335 recycles excess heat, reducing strain on your HVAC system and cutting operational costs.

Features

• Overhead or ground placement – Built to fit what works for your space.
• Plug-n-play – No installation required.
• High efficiency – No dehumidifier is more efficient.
• Widest operating range – Of temperature and relative humidity.
• UL rated and ETL listed – The highest safety standard.
• Digital control – Digital control interface with external control option.
• Onboard dehumidistat – Along with a low voltage terminal block.
• Integrated handles – For ease of movement.
• Long power cord – For extended reach.
• Auto restart – Unit automatically defaults to prior settings in the event of a power outage.
• 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.

What's Included?

• Dehumidifier
• 4 x Feet
• Drain Hose
• Drain Adapter ¾” NPT PVC to 5/8” Hose Barb
• 4 x Rivnut Plugs

Download Resources

• Quick Start Instructions
• Product Manual
• Spec Sheet