Complete Kits without Carbon Filter: The Discreet Solution for Your Indoor Grow
Complete kits without a carbon filter are perfect when you're growing in an environment where odors aren't an issue. These kits include everything you need: high-performance LED lighting, silent ventilation, and ducting, without the bulk of a filtration system. Honestly, it's the ideal option for beginners or for covered outdoor grows.
Why Choose a Kit Without a Carbon Filter
The main advantage? Space-saving and ease of installation. Without a carbon filter, your extractor works with less resistance, which improves airflow and reduces noise. We're talking about a noticeable difference: where a 125mm extractor with a filter pushes 280 m³/h, the same one without a filter easily reaches 350 m³/h. This is particularly interesting in small tents like 60x60 or 80x80 cm where every centimeter counts.
Ventilation remains optimal thanks to a direct extraction system that evacuates hot and humid air without pressure loss. Modern LEDs already emit less heat than HPS (about 30% less), but good air circulation remains crucial to maintain the temperature below 26°C during the growth period.
How to Choose Your Filter-Free Kit
First rule: adapt the extraction power to the volume of your space. For an 80x80x160 cm tent (1.02 m³), a 125mm extractor developing 280-350 m³/h is more than sufficient. The goal is to renew the air 40 to 60 times per hour minimum.
For lighting, opt for full spectrum LEDs with a PPFD of at least 400 µmol/m²/s during growth and 600-800 µmol/m²/s during flowering. 100W panels are suitable for 60x60 cm, while you need to go up to 200-240W for 80x80 cm. The lamp-to-plant distance varies according to power: 30-40 cm for 100W, 40-50 cm for 200W and above.
Don't forget the ducting: 125mm for small installations, 150mm beyond 1.5 m³. Acoustic ducting reduces vibrations by 3-5 dB, a significant plus if you're growing in an apartment.
Frequently Asked Questions
Which carbon filter-free kit should I choose for an 80x80x160 cm tent?
For this standard size (1.02 m³), opt for a kit with a 125mm extractor of 280-350 m³/h and 200-240W LED. The extraction flow must renew the air at least 40 times per hour, which is a theoretical 245 m³/h. In practice, allow for a 20% margin for ducting pressure losses. A 200W full spectrum LED panel perfectly covers this area with a homogeneous PPFD of 600-700 µmol/m²/s at a distance of 45 cm.
How do I install ventilation in this silent filter-free kit?
Installation is simplified without a filter: fix the extractor at the top of the tent, connect the exhaust duct directly to the outside. Add a passive intake at the opposite bottom to create a diagonal airflow. Use airtight clamps on the duct-extractor connections to prevent air leaks. Anti-vibration hangers reduce noise by an additional 2-3 dB. Check that the exhaust duct does not have tight bends that would impede airflow.
What distance should be maintained between the LED lamp and plants during growth and flowering?
During growth, maintain 35-45 cm with 100-200W LEDs to achieve 300-400 µmol/m²/s. During flowering, bring it closer to 30-40 cm to reach 600-800 µmol/m²/s. Monitor leaf temperature: if they exceed 27°C to the touch, move it away by 5-10 cm. Modern LEDs allow you to go down to 25-30 cm without burning, unlike HPS which require a minimum of 60 cm. Use a lux meter or a smartphone app to accurately measure light intensity.
How do I maintain the fans and ducting of a GrowLED filter-free kit?
Clean the extractor blades every 2-3 months with a dry brush to remove dust that reduces airflow. Check the bearings: abnormal noise indicates premature wear. The ducting can be cleaned with soapy water and then thoroughly dried before reassembly. Check the tightness of the connections every 6 months: an air leak reduces efficiency by 10-15%. Replace flexible ducting every 2-3 years, as it loses flexibility and creates more turbulence.
Is this filter-free kit sufficient to control odors without carbon?
No, a filter-free kit does not eliminate any odors; it only evacuates the air directly to the outside. This is only suitable if you are growing in an isolated location (garage, cellar) or outdoors under cover where odors do not bother anyone. For indoor odor control, you absolutely must add an activated carbon filter or switch to a complete kit with integrated filtration. Extraction alone does not mask odors; it simply moves them.
