Nothing matches all of those filters.
Dehumidifiers and climate units
Rated in litres a day
Out of stock
RAM 12L Dehumidifier Grow Room Humidity Control
- Extraction Rate Up to 12 litres per day
- Target Humidity Range 30% to 80% RH
- Tank Capacity 2 litres
- Drainage Internal tank or optional continuous hose drainage
AlorAir Sentinel Dehumidifier for Grow Rooms
- HD55 extraction 60L/day at 30°C, 80% RH
- HD55 AHAM 30L/day at 26°C, 60% RH
- HD55 coverage up to 1,300 sq ft
- HD55 sound / drain under 52 dBA, gravity drain
AlorAir Storm SLGR 1600X | 130L Commercial Dehumidifier
- Extraction 130L/day at 30°C, 80% RH
- AHAM rating 71L/day at 26°C, 60% RH
- Coverage up to 7,000 sq ft
- Sound level under 55 dBA
AlorAir Storm SLGR 1250X | 105L Wi-Fi Dehumidifier
- Extraction 105L/day at 30°C, 80% RH
- AHAM rating 50L/day at 26°C, 60% RH
- Coverage up to 3,000 sq ft
- Sound level 60 dBA
AlorAir Guardian Dehumidifier | 72L & 90L, Remote Controlled
- Range AlorAir Guardian
- 72L extraction 65L/day at 30°C, 80% RH
- 72L AHAM 32L/day at 26°C, 60% RH
- 72L coverage up to 2,368 sq ft (220 m2)
AlorAir Storm LGR Extreme | 85L Commercial Dehumidifier
- Extraction 85L/day at 30°C, 80% RH
- AHAM rating 46L/day at 26°C, 60% RH
- Coverage up to 3,600 sq ft
- Sound level under 55 dBA
Aqualine Dehumidifier for Grow Room Humidity Control
- Brand Aqualine
- Type Refrigerant dehumidifier
- Power supply 220-240V / 50Hz
- 12L model 210W, 12L per day, 2L tank, under 46dB, 105 m³/h ...
Ora 60L Grow Room Dehumidifier for Humidity Control
- Extraction Rate 60L / 127 US pints per 24 hours
- Power 650W
- Power Supply AC 230V ±10% / 50Hz / 1P
- Refrigerant R410A
OptiClimate Pro 3 Water-Cooled Grow Room Air Conditioner
- Models Pro 3500, Pro 6000, Pro 10000
- Functions Cooling, heating, dehumidification, filtration, a...
- Cooling method Water-cooled, no coolant gases
- Heating Ceramic heaters
OptiClimate Revomax II Grow Room Air Conditioner
- Modes Heating, cooling, dehumidifying, circulating, fil...
- Inverter Infinity DC inverter, 30-100% cooling capacity
- Minimum turndown 20-30% cooling capacity
- Filtration Built-in carbon and dust filters
Climate Master Dehumidifier CM-145
- 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
VIVOSUN AeroDrain D12 Intelligent Environmental Dehumidifier
- Moisture removal Up to 12 litres per day
- Water tank capacity 2.1 litres, with auto shut-off when full
- Drainage Tank collection or continuous gravity drain
- Power 185W
Quest 100 Compact Commercial Dehumidifier
- 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
Dry Bag Disposable Hanging Dehumidifier
- Type disposable hanging (passive) dehumidifier
- Moisture absorption capacity up to 500ml
- Recommended coverage up to 1m2 per bag
- Power none required (passive absorbing compound)
Dry Pot Disposable Room Dehumidifier
- Type disposable passive dehumidifier
- Moisture removal up to 800ml per pot
- Coverage recommended up to 1.2m2
- Active ingredient moisture-absorbing compound
Humidifiers
Ultrasonic and sonic, 2L up to 23L
G.A.S SonicAir Humidifier Pro
- Maximum output 6.5 litres per hour
- Spout 150mm directional
- Water supply mains intake (no tank)
- Power 300 watts
Aqualine Humidifiers for Grow Tents and Grow Rooms
- Type ultrasonic cool mist humidifiers
- Range tank capacities from 2.3 L to 23 L
- Mini One (2.3L) 2.3 L tank, covers up to 1m x 1m x 2m, up to 10 h...
- Midi Mist (4.5L) 4.5 L tank, covers up to 1.2m x 1.2m x 2m, max 28...
Sonic Air Humidifier 23L
- Reservoir capacity 23 litres
- Maximum mist output 1.44 litres per hour
- Power consumption 110W
- Fill type Top-fill lid
Sonic Air PRO Humidifier + IHC Pro Dual VPD Controller
- Humidifier G.A.S SonicAir Pro, ultrasonic
- Maximum mist output 6.5 litres per hour
- Power 300W
- Noise level under 35 dB
Pure Factory Humidifier - 8 Litre Reservoir
- Reservoir capacity 8 litres
- Mist output adjustable up to 350ml/hr
- Run time up to 32 hours per fill
- Technology ultrasonic cool mist
Out of stock
RAM 5L Ultrasonic Humidifier for Grow Room Humidity Control
- Brand RAM
- Type Humidity
- Price from £39.49
- Availability Out of stock
RAM 13L Ultrasonic Humidifier for Grow Room Humidity
- Brand RAM
- Product type Ultrasonic humidifier
- Tank capacity 13L
- Humidification rate 1100ml per hour
Mist Maker Ultrasonic Humidifier for Grow Rooms
- Type ultrasonic disc mist maker
- 3 disc 1200 ml/h output
- 5 disc 1600 ml/h output
- 12 disc 5300 ml/h output
VIVOSUN AeroStream Ultrasonic Grow Tent Humidifier
- Models AeroStream H05, H09 and H19
- Tank capacities 5 litre (H05), 9 litre (H09), 19 litre (H19)
- Mist type fine ultrasonic mist
- Output control adjustable
G.A.S SonicAir Humidifier - 10L
- Reservoir capacity 10 litres
- Vapour output up to 800ml per hour
- Power draw 60W
- Outlets 4 rotatable
Controllers and sensors
Switch at a set point
Dimlux Humidity Sensor for Maxi Controller Grow Room Setups
- Brand Dimlux
- Type Meters
- Options 2 to choose from
- Price from £32.49
- Availability In stock
G.A.S. Day & Night Dehumidifier Controller for Tents
- Brand G.A.S.
- Product type Day and night dehumidifier controller
- Control Two dials, daytime (left) and night time (right)
- Function Switches a connected dehumidifier on and off to h...
Dimlux Maxi Controller v1.2 Climate and Light Control
- Version v1.2
- Fixture capacity Up to 160 Dimlux Expert fixtures or Xtreme ballasts
- Controls Lighting, CO2, heating, humidity, fans
- Monitors CO2, vapour pressure deficit (VPD), plant tempera...
Growlink ClimaLINK Grow Room Climate Sensor
- Measures Temperature, humidity, light, optional CO₂
- Temperature Range -40 to 125°C, accuracy ±0.1°C
- Humidity Range 0 to 100% RH, accuracy ±1.0%
- CO₂ Range (optional) 0 to 5,000 ppm, accuracy ±3%
Quest DEH 3000R Controller
- 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
Drying and curing
Hold humidity steady while produce dries
Filters, duct kits and spares
The full range
Humidifiers and dehumidifiers for grow tents
Humidity needs to move through the grow: 70-80% for seedlings and cuttings, dropping to 40-50% through flower, and never above 55% once flowers are forming — that's the zone where mould takes hold. A humidifier or dehumidifier gives you direct control instead of relying on your extraction fan speed alone.
The G.A.S SonicAir Humidifier range (10L, 23L and the Pro model) covers everything from a small tent to a full room; the Pure Factory 8 Litre Humidifier is a simpler budget option for propagation spaces that need gentle, constant moisture. For the opposite problem, our Dry Bag and Dry Pot disposable dehumidifiers pull excess moisture out of a small tent or cupboard without any power needed.
Which one do you need?
Seedlings and clones usually need more humidity, not less — a humidifier alongside a circulation fan stops water sitting on leaves. Flowering tents more often run too humid, especially with a fabric pot and hand watering, where a dehumidifier or simply increasing extraction fan speed brings it back down. See our grow tent setup guide for humidity targets by growth stage.
Free UK delivery over £60 on all humidity control gear.