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How to Select the right size carbon filter?

To understand which size carbon filter is appropriate, first you need to calculate the volume of your grow room using the following formula: Grow room Width x Depth x Height = Volume, for example: Grow room 1.2m Wide x 1.2m Deep x 1.8m High = 2.59 cubic metres (2.59m3) Now that you have calculated your grow room's volume, you now need to find out the recommended amount of air that needs to be renewed based on its volume. To do this use the following formula: Grow Room Volume x Air exchanges = Recommended volume of air exchanges per hour, for example: Grow room volume of 2.59m3 x 30 air exchanges per hour (air is renewed every 2 minutes) = 77.7 cubic metres per hour (77.7m3/hr), meaning that the carbon filter cannot be less than 78m3/hr for this size room.

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