Quest 70 Dehumidifier

R35 400.00

Out of stock

SKU: ENV317 Category:


The Quest 70 Dehumidifier is an American made refrigerant dehumidifier that will extract 33.2 L of moisture from a larger grow space at 26.7 °C and 60% R.H. (Relative Humidity)

This compact, cost effective and high preforming machine features MERV 13 filtration and an onboard dehumidistat and can be installed in an overhead position or on the ground and ductable intake and exhaust kits exist.

Controlling humidity in compact, unconditioned commercial spaces presents unique challenges. Variable temperatures and constrained placement means you need a targeted solution. That’s where the Quest 70 comes in.

This compact, economical, high performing dehumidifier has one of the widest temperature and relative humidity operating ranges Quest offers.

The Quest 70 Dehumidifier manual can be viewed HERE.


Generally, manufacturers name and rate the unit based on the amount of water it can remove from air in 24 hours, but based on air with a temperature of around 30 degrees Celsius and with an RH of 80%. These types of conditions may be a reality in really tropical summers in places like China and Hong Kong, but is far from what the conditions inside your average grow area are like. There are even some manufacturers that rate their units’ performance based on 32 degree Celsius air with 95% RH! These ratings are also based on air where the RH remains the same – as a dehumidifier cannot magically continue to remove water from air with little to no water in it.

As a general rule of thumb, halve the rating of any dehumidifier to get an idea of how much water it will remove from a “normal” grow room environment in 24 hours.

Dehumidifiers are best suited for closed-loop growing set-ups, or spaces with little ventilation – no number of dehumidifiers will dry out a space where potentially wet air is constantly being ventilated into the space from outside.