The most common is the carbon exhaust filter.
Exhaust fan and carbon filter.
All of these are essential for an effective ventilation system.
If you want to keep it simple look into our carbon filter and fan exhaust kits.
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Vivosun 4 inch air carbon filter odor control with australia virgin charcoal for inline fan grow tent odor scrubber pre filter included reversible flange 4 x 14 4 5 out of 5 stars 2 550 35 98 35.
The carbon exhaust filter is superior at odor removal and is the most versatile option.
A quick guide on what an exhaust fan and carbon filter is and what setup is right for your indoor grow space.
This includes the inline fan ducting fan speed controller and carbon exhaust filter.