A fan inside a grow tent is typically used to keep air moving rather than simply blowing as hard as possible. The right setup depends on tent size, ventilation, heat load and the needs of the plants.

Circulation versus exhaust

An internal circulation fan moves air around the tent. Exhaust equipment has a different job: removing air from the growing environment.

Adjustable airflow can help

A speed controller gives you more flexibility than a fixed-speed fan, particularly when conditions change.

Avoid obstructing the fan

Leave sufficient clearance around the fan and secure cables so they cannot interfere with moving parts.

Match the fan to the setup

A 250mm fan may be useful for directed circulation, but it should be considered as part of the complete ventilation plan.

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grow tent fan Singapore · grow tent ventilation fan · tent airflow guide

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