Quest
Rated where it works.
Rated at grow-room conditions rather than showroom conditions, so the published litres-per-day figure is the one you get.
Nothing matches all of those filters.
Filters, ducting and spares
Replacements and fittings for the units above.
The Quest range
The units
Climate Master CM-145 Dehumidifier – 145L/Day for Grow Rooms
- Extraction capacity up to 145 litres/day at 30°C, 80% RH (88 litres/d...
- Power consumption 1200W
- Airflow 650 m3/h
- Dimensions 88 x 60 x 44 cm
- Weight 65 kg
- Refrigerant R410A (1.3 kg)
- Filter Nylon (replaceable)
- Inlet/outlet diameter 242mm
- Control Built-in digital humidistat; TrolMaster HS1 inter...
The units
Quest 70 Overhead Dehumidifier – 26L/Day, 480W, MERV 13
- Model 4033810-XX (Quest 70, 50 Hz international)
- Water removal 26 litres/day at 26.7°C and 60% RH
- Efficiency 2.22 litres/kWh
- Power 480 W
- Current draw 2.1 A
- Supply voltage 230V, 50 Hz
- Airflow 255 m³/hr (150 CFM)
- Operating temperature 5°C to 35°C
- Dimensions 53.3 (L) x 30.5 (W) x 30.5 (H) cm
- Weight 25 kg
- Filtration MERV 13, filter size 23 x 28 x 3 cm
- Controls onboard dehumidistat with low voltage terminal block
- Power cord 7 m, IEC 60320-C13
- Refrigerant R410A, 15 oz
- Drain connection 1.9 cm threaded NPT
- Warranty 3 years
- Compliance CE rated
The units
Quest 100 Compact Commercial Dehumidifier – 44L/Day
- Model 4046590-XX (Quest 100, 50 Hz international)
- Water removal 44 litres/day at 26.7°C / 60% RH; 29.3 litres/day...
- Efficiency 3.2 litres/kWh (6.7 pints/kWh)
- Power 540 W
- Current draw 2.5 A
- Supply voltage 230V, 50 Hz
- Recommended breaker 13 A (UK)
- Airflow 280 CFM
- Total heat load 6,200 BTU
- Operating temperature 13°C to 35°C
- Dimensions 61 (L) x 40.6 (W) x 36.8 (H) cm
- Weight 27.2 kg
- Filtration MERV 13, filter size 30.5 x 35.6 x 2.5 cm
- Controls onboard digital with low voltage terminal block, ...
- Fan variable speed EC motor
- Power cord 3 m, IEC 60320-C13
- Refrigerant R454b, 17 oz
- Drain connection 1.9 cm threaded NPT, internal drainage, no P-trap...
- Warranty 3 year limited
Controllers
Quest DEH 3000R Humidity Controller – For Dehumidifiers
- Type digital humidity and ventilation controller
- Display backlit LCD (humidity, temperature, date, time)
- Control adjustable humidity set point (single target, no ...
- Fan modes continuous or automatic
- Timer programmable ventilation timer
- Protection built-in high-temperature cut-out
- Compatibility Quest Dual 105, 155, 185, 205 and 225 dehumidifiers
- Sensor remote temp/humidity, wiring run to 30 m
- Max load per output 1 A each
- Power supply 24 V AC
- Auxiliary relay capacity 5 A at 24 V AC
- Dimensions 126 x 106 x 27 mm
- Humidity range 10-95% RH, ±5%
- Temperature range -1 to 32°C (30-90°F), 2% accuracy
Air movers
Quest F9 Air Mover – Grow Room Circulation Fan
- Airflow 750 cubic feet per minute (approx. 1,274 m3/h)
- Air pattern mixes and spreads air simultaneously
- Indicator lights none - no external lights
- Format low-profile body for tight spaces
- Availability special order item, standard shipping only
Choosing a Quest dehumidifier
Quest rate their units at grow-room conditions rather than at the warm, saturated air manufacturers usually quote, so the litres-per-day figure on the spec sheet is close to what the machine will actually pull in your room. That matters when you are sizing: a unit rated optimistically will run flat out and still lose ground.
Sizing comes down to two numbers — the volume of the space and how much water goes in each day. Almost all of the water you feed leaves the plants again as vapour, so a room getting 40 litres a day needs to remove something close to 40 litres a day. Undersizing shows up as condensation on cool surfaces overnight; oversizing mostly costs money.
Every unit here runs standalone from its own humidistat. If you would rather hold a set point automatically, the DEH 3000R controller drives the unit remotely, and the Climate Master talks to TrolMaster over its HS1 interface. Filters, duct kits and hanging brackets for each model are further down the page.
Efficiency is worth reading as well as capacity. Litres per kilowatt-hour tells you what the unit costs to run once it is holding a room, and on a machine running most of the day that difference is larger than the difference in purchase price.
Free Express Delivery on UK mainland orders over £60, arriving in 1-2 working days. Order by 3pm Mon-Fri. Price match available, and collection from our Wembley shop.