Do SigilVentus Carbon Filters completely remove odour?
Yes—if installed correctly with sealed ducting, proper airflow, and negative pressure. They remove odours and VOCs from your grow room exhaust. If you still smell odour, check for leaks, high humidity, or excess fan speed.
What size SigilVentus Carbon Filter should I choose?
Match the filter to your fan and ducting size: 150mm, 200mm, or 250mm. Don’t downsize or use reducers unless absolutely necessary—they add resistance. Choose a filter that supports your airflow needs after system losses.
What is the airflow capacity for SigilVentus filters?
The 150mm handles ~934 m³/h, 200mm ~1275 m³/h, and 250mm ~1443 m³/h. Overpowering airflow can reduce odour control. Use a speed controller to balance air exchange and filter contact time.
What makes SigilVentus carbon filters high quality?
They use RC-48 activated carbon with high IAV for strong adsorption. Machine-sieving ensures consistent granule size and airflow. Vacuum-sealed packaging preserves carbon purity before use.
How should I mount a SigilVentus Carbon Filter?
Mount it high in your space, securely supported—either horizontally or vertically. Most setups pull air through the filter (filter → fan → ducting). Inside-tent or outside-tent mounting both work if sealed properly.
Do I need to use the pre-filter sleeve?
Yes. The pre-filter catches dust and debris before it hits the carbon, extending lifespan and keeping airflow strong. Clean it when dusty or airflow drops. You can gently wash and dry it before reuse.
How long does a SigilVentus Carbon Filter last?
Typical lifespan is 12–18 months, depending on humidity, dust, and airflow. You can extend life by keeping pre-filters clean, maintaining ideal humidity, and avoiding max-speed fan operation.
Can I wash or refill the carbon inside the filter?
No. Activated carbon cannot be washed or recharged effectively at home. Once it’s saturated, the filter needs replacing. Trying to reuse spent carbon significantly reduces performance.
Does humidity affect filter performance?
Yes. High humidity reduces carbon’s adsorption ability and shortens lifespan. Spikes after watering can cause odour leaks. Keep relative humidity under control for consistent results.
Can I use SigilVentus Carbon Filters 24/7?
Yes—many growers run them continuously for maximum odour control. You can run them only during lights-on, but odours often persist outside those hours. Consistent use is safest for stealth.
What’s the difference between exhaust and recirculating setups?
Exhaust setups push odours out through the filter—best for smell control. Recirculating setups clean air in a loop inside the room but don’t manage heat or humidity. Use when external venting isn’t possible.
What is negative pressure and why is it important?
Negative pressure means your space slightly pulls inward, ensuring air exits through the filter. Without it, odours can leak from zippers or ducts. Check by seeing if your tent walls pull inward slightly.
How do I properly seal my setup for best results?
Use clamps on every duct connection and seal with foil HVAC tape to prevent air leaks. This, combined with proper fan speed and filter sizing, is key to achieving maximum odour control.
Why do I still smell odour after installation?
Most common reasons: air leaks before the filter, fan too fast, poor sealing, high humidity, or a worn-out filter. If it smells only when the tent opens, that's normal—internal air is unfiltered until exhausted.
Can SigilVentus filters be used for non-grow odours?
Yes. They work well for removing strong odours from pets, smoke, rubbish areas, and more. Just note that heavy household VOCs or smoke may saturate the carbon faster than in typical grow setups.
