Ventilation & Climate Control

Control every aspect of your grow room environment with Apex Grow's range of ventilation, climate, and air quality products, engineered for Australian indoor growers. Our environmental range covers inline fans from Systemair RVK, Revolution EC and AC, Blauberg, and JB Quiet fans, paired with fan speed controllers and climate automation systems including the GAS Enviro V2 and GAS EC5. For odour control, we stock Rhino Pro, Black Ops RC412, and CarboAir 50 carbon filters in a full range of sizes. Manage humidity with the Ora 60L commercial dehumidifier and SonicAir ultrasonic humidifier, and maintain temperature with the Hydroponic Thermostat Controller. We also stock ducting, silencers, duct connectors, oscillating fans, clip fans, and CO2 generators for complete grow room climate management. Melbourne-based with fast shipping across Australia.

Thinking a basic hardware-store exhaust fan will do the job? Our inline fans and carbon filters vs Bunnings guide explains why static pressure under a carbon filter is the spec that actually matters, and why Bunnings doesn't stock a grow-room carbon filter at all. Already decided on proper gear and just need to know what size? Our kit sizing guide breaks it down tent by tent.

Frequently Asked Questions

What size inline fan do I need for my grow tent?
Match the fan's CFM or m3/h output to your tent volume with enough headroom for carbon filter resistance. A 120x90x200cm tent needs at least 200 to 400 m3/h. Our fan sizing guide covers every common tent size with the right fan and filter combination.

Do I need a carbon filter in my grow room?
If odour control matters to you, yes. A carbon filter paired with an inline fan scrubs air as it is extracted, removing odour before it leaves the tent. Size the filter to match your fan's airflow rating for best results, and replace the carbon every 12 to 18 months.

What controls humidity in a grow tent?
Airflow through your inline fan is the primary humidity controller. Increasing fan speed lowers humidity. A dehumidifier manages persistent high humidity that airflow alone cannot bring down. A humidifier raises humidity in dry conditions or low-humidity LED setups. For a full explanation of how these interact, see our VPD and humidity guide.

What is VPD and why does it matter?
VPD (Vapour Pressure Deficit) measures the drying power of the air around your plant. It determines how hard your plant works to move water and nutrients from roots to leaves. Too low and growth slows. Too high and plants stress. Managing temperature and humidity together keeps VPD in the right range across every growth stage.