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

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:

• Thermometers & hygrometers – To monitor heat and humidity
• Fan speed controllers – To adjust airflow intensity throughout the day or night
• Heaters, humidifiers & dehumidifiers – To maintain ideal VPD (Vapour Pressure Deficit) and growing conditions year-round

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. Read more