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Marijuana Growing guide - Air
The regular replacement of the air in your grow room has a surprisingly large effect on the final size and quality of your crops. Not only do our ventilation fans and extraction fans allow you to regulate your grow room temperature, but also maintain a constant supply of fresh air to your plants - essential if you want to keep a healthy growing environment. The regular replacement of fresh, C02 laden air in the growing space is of huge importance, and without it one can expect low yields of low quality product.
It's always better to have a bigger motor running at a lower speed than to have a motor thats too small going at full revs. It's better because the noise is lower so better for the neighbours, and it's best for the life-time of the motor. In most places the difference between summer and winter temperatures is significant, and because of that more air will be required to cool the room in summer and less in winter. Many growers have problems cooling their rooms in summer mainly because their exhaust fan isn't big enough to cope. Make sure your exhaust fan has more than enough power.