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Grow Room Climate Control: Fans, Heaters, Humidifiers & Controllers

185 products

Showing 1 - 48 of 185 products

Showing 1 - 48 of 185 products
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Kaizen In-Line Duct FanIn-Line Duct Fan fan view
Kaizen In-Line Duct Fan
Sale priceFrom £50.00
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Kaizen Fan & Filter Extraction Kits 1Kaizen Fan & Filter Extraction Kits 2
Kaizen Fan & Filter Extraction Kits
Sale priceFrom £109.99
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Save up to £-21.00
Kaizen Carbon Filter for ventilation and odour control – Holland HorticultureKaizen RC-412 carbon filter for hydroponic air filtration – Holland Horticulture
Kaizen Carbon Filters (4" - 10")
Sale priceFrom £47.99 Regular price£173.99
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Kaizen Master LED lighting controller for hydroponic grow roomsKaizen Master Controller
Kaizen Master Controller
Sale price£100.00
Save up to £62.50
Kaizen In-line Extraction Fan
Kaizen In-line Extraction Fan
Sale priceFrom £35.00 Regular price£70.00
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Kaizen Klean - Cherry
Kaizen Klean - Cherry
Sale priceFrom £13.50
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Kaizen Filter Sleeve for Ventilation and Odour Control – Holland Horticulture
Kaizen Filter Sleeve
Sale priceFrom £5.00
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Save up to £20.00
Kaizen Klean 20L
Kaizen Klean 20L
Sale price£90.00 Regular price£110.00
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Save up to £60.00
Kaizen Klimate Controller Z Series
Kaizen Klimate Controller Z Series
Sale price£290.00 Regular price£350.00
Kaizen Klean Gingerbread Odour Remover for effective odour control
Kaizen Klean - Gingerbread
Sale priceFrom £13.50
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Kaizen Klean - Lemon Sherbert
Kaizen Klean - Lemon Sherbert
Sale priceFrom £13.50
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Kaizen Klean - Fresh Linen
Kaizen Klean - Fresh Linen
Sale priceFrom £13.50
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Kaizen Gold LED Controller Touchscreen Display – Holland Horticulture
Clip-On Fan - 6″
Clip-On Fan - 6″
Sale price£13.00
Secret Jardin Monkey FansSecret Jardin Monkey Fans
Secret Jardin Monkey Fans
Sale priceFrom £20.00
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Jubilee ClipsJubilee Clips
Jubilee Clips
Sale priceFrom £1.10
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Rhino Pro Carbon Filter 100x300 for hydroponic odour controlFull range of Rhino Pro Carbon Filters at Holland Horticulture
Rhino Pro Carbon Filters
Sale priceFrom £50.00
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Windowed Grove Bags
Windowed Grove Bags
Sale priceFrom £1.60
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Eco Intake Fan 1Eco Intake Fan
Eco Intake Fan
Sale priceFrom £13.95
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Power Grip 6 Inch Oscillating Fan
Save up to £80.00
Red Scorpion EC Inline Fan
Red Scorpion EC Inline Fan
Sale priceFrom £71.50 Regular price£90.00
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Save up to £6.95
Moisture Guard ProMoisture Guard Pro
Moisture Guard Pro
Sale price£8.00 Regular price£14.95
RAM Ultrasonic Humidifier 1RAM Ultrasonic Humidifier 2
RAM Ultrasonic Humidifier
Sale priceFrom £39.95
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Save up to £10.00
RAM Acoustic Ducting
Acoustic Ducting
Sale priceFrom £14.40 Regular price£16.00
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Combi Ducting 1Combi Ducting 2
RAM Combi Ducting
Sale priceFrom £9.00
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Rhino Ultra Silent EC FanRhino Ultra Silent EC Fan
Rhino Ultra Silent EC Fan
Sale priceFrom £240.00
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Aluminium Ducting
Aluminium Ducting
Sale priceFrom £8.95
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CO2 Bag
CO2 Bag
Sale price£5.00
PhonicTrap Acoustic DuctingPhonicTrap Acoustic Ducting
PhonicTrap Acoustic Ducting
Sale priceFrom £28.95
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ReducersReducers
Reducers
Sale priceFrom £4.00
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Exhale CO2 BAGExhale CO2 BAG
Exhale CO2 BAG
Sale priceFrom £30.00
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5L CO2 generator with red container and blue device on a white background10L Red CO2 generator container with blue power adapter on a white background
CO2 Generator
Sale priceFrom £64.00
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Ona GelsOna Gel
Ona Gel
Sale priceFrom £9.95
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A digital hygrometer thermometer with a large LCD screen displaying indoor and outdoor temperature and humidity levels.
AirComfort Wireless Temperature/Humidity SensorAirComfort Wireless Temperature/Humidity Sensor 2
CO2 Regulator
CO2 Regulator
Sale price£97.05
Ona BlockOna Block
Ona Block
Sale price£10.00
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Y PiecesY Pieces
Metal Y Pieces
Sale priceFrom £13.45
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Fast ClampsFast Clamps
Fast Clamps
Sale priceFrom £7.00
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Krystal Metal Wall FanKrystal Metal Wall Fan in Box
Krystal Metal Wall Fan
Sale price£40.00
Superpro E1 Fan Controller with Probe
A black oil-filled grow room radiator with a thermostat on the front and multiple fins.Grow Warm Oil Radiator
Grow Warm Oil Radiator
Sale priceFrom £35.00
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Straight Connectors
Straight Connectors
Straight Connectors
Sale priceFrom £2.50
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RAM Heavy Duty Wall Fan RAM Heavy Duty Wall Fan front view
RAM Heavy Duty Wall Fan - 18"
Sale price£64.00
G.A.S SonicAir - Pro HumidifierG.A.S SonicAir - Pro Humidifier
G.A.S SonicAir - Pro Humidifier
Sale price£345.00
Oscillating Wall FanOscillating Wall Fan 16″
Oscillating Wall Fan 16″
Sale price£30.00
Climate Control Equipment for Your Grow Tent

Controlling temperature, humidity, and airflow is essential for a healthy indoor growing environment. At Holland Horticulture, our Climate collection features everything you need to manage conditions in your grow space, whether you’re running a single plant in a small tent or a full-scale grow room setup.

Our range includes high-performance extraction fans with filters, grow tent fans, oscillating fans, for rooms, and complete carbon fan kits all designed to improve air circulation, reduce heat, and eliminate unwanted odours. ...

Why You Need Proper Ventilation

Plants need fresh, CO₂-rich air to grow properly. Without it, your environment becomes hot, humid, and stale—leading to stress, disease, and reduced yields.

A well-matched grow fan and extraction fan help remove warm, humid air while drawing in fresh, cooler air. Using a carbon fan or extraction fan with filter will also eliminate odours before they exit the grow tent, keeping your setup discreet.

Our Climate Range Includes:
  • Extraction fans - Powerful fans to remove hot air and odours efficiently
  • Grow tent fans – Clip-on or oscillating fans to keep fresh air moving evenly across the plant canopy
  • Carbon filters – Premium activated carbon filters designed to eliminate odours and keep your grow space discreet

Temperature & Humidity Control
Pair your fan system with climate monitoring tools like:

Ready to Optimise Your Grow Space?
Browse our full Climate Control collection to find the right grow tent fan, or complete extraction fan with filter setup. Keep your air clean, your temperatures stable, and your plants thriving.

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