Portable Hi-E Dry 140 Dehumidifier by Quest

The Hi-E Dry 140 removes up to 135 pints of moisture per day at 300 CFM and 8,850 BTU on standard 110-120V power, built as a portable high-efficiency unit for grow rooms, drying chambers, and other climate-sensitive cultivation spaces rather than a fixed overhead installation.

It uses a MERV 10 filter to manage airborne particles at a rating matched to this unit's specific blower design, and its portable format means it can move between rooms or drying setups as needs change through a growing season.

Key Features & Benefits

• 135 pints/day capacity — at 300 CFM and 8,850 BTU on standard 110-120V power.
• Portable format — moves between grow rooms, drying chambers, and other spaces rather than staying fixed in an overhead mount.
• MERV 10 filtration — captures dust, pollen, and mold spores at a rating matched to this unit's blower design.
• High-efficiency operation — sized to deliver strong moisture removal per amp of power draw relative to older portable dehumidifier designs.
• Built for climate-sensitive spaces — suited to drying chambers and cultivation environments where humidity swings need tight, responsive control.

Who Should Use This

The Hi-E Dry 140 suits growers who need a portable, high-efficiency dehumidifier they can move between grow rooms and drying chambers, rather than a permanently mounted overhead unit.

About Quest

Quest is a Therma-Stor brand. It focuses on commercial dehumidification. Therma-Stor is headquartered in Madison, Wisconsin. It's the same parent company behind the Anden brand. Therma-Stor has built dehumidifiers and environmental-control equipment for decades. Quest specifically targets commercial and industrial moisture control. Think indoor cultivation, food production, and commercial buildings. That's a different focus than residential basement units. Many overhead models use the company's patented M-CoRR design. M-CoRR stands for multi-coil refrigeration. The design recycles heat pulled from the air. That happens during dehumidification itself. It improves energy efficiency as a result. It also cuts heat sent back into the room.

Frequently Asked Questions

Is the Hi-E Dry 140 meant to be permanently installed or moved around?

It's built as a portable unit specifically so it can move between grow rooms, drying chambers, or other spaces as your needs change. If you need a fixed installation, Quest's overhead-mount models are a better fit.

What's the difference between the Hi-E Dry 140 and the Hi-E Dry 195?

The Hi-E Dry 140 removes up to 135 pints/day at 300 CFM and 8,850 BTU with a MERV 10 filter, while the Hi-E Dry 195 removes up to 195 pints/day at 610 CFM and 13,400 BTU with a MERV 11 filter. Choose based on the moisture load of your specific space rather than defaulting to the larger unit.

What does MERV 10 filtration capture on this unit?

The MERV 10 filter captures dust, pollen, and mold spores at an efficiency level matched to the Hi-E Dry 140's blower design. It's a mid-range rating, coarser than the MERV 13 filters used on Quest's larger overhead units but appropriate to this portable unit's airflow specification.

How much power does this unit draw?

It runs on standard 110-120V power, drawing enough current to deliver 135 pints/day of moisture removal and 300 CFM of airflow. Check the specific amperage rating on the unit's nameplate against your circuit capacity before running it alongside other equipment.