Carbon Filters: The #1 Way To Control Odor In Your Grow Room
By far the best way to get rid of growroom odor is with a carbon filter. They literally scrub plant smells out of the air before the air is extracted from the growroom.
Carbon filters are an essential part of your ventilation system. The extractor fan pulls air from your growroom through a filter containing an activated layer of carbon. As this happens, the odor released by your plants is trapped and retained inside the pores of the activated carbon.
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There are many carbon filters available out there, and to make sure you are purchasing a quality one you should look out for a deep carbon bed, as the deeper the carbon bed, the more activated carbon there will be. This means the filter can remove more odor and will have a longer overall life span.
To make sure your fan and filter are perfectly connected, your spigot size needs to match the diameter of your fan. If this is not the case then you can use a reducer, however, this will impede the efficiency of your fan and filter. If your carbon filter spigot is too small, it will not be suitable for the level of odor you need to scrub as the air needs to be in contact with the carbon in your filter long enough to remove the odors.
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To keep your carbon filter working as efficiently as possible you should make sure you maintain it properly. Replace pre-filters every three to six months. Pre-filters and filter sleeves are preventative measures to stop dust and debris from getting into your carbon filter, which could reduce the life of your carbon. Replace carbon filters every nine months to two years, or whenever you think they are needed. This will depend on which filter you buy. Check the care instructions for specific guidelines.
Do not use a humidifier in your growroom with unfiltered water. Unfiltered water contains minerals that, when used in a humidifier, can clog up carbon filters and reduce their life. To prevent this, you should always use RO (reverse osmosis) water with your humidifiers. Reverse osmosis is a process where you demineralize or deionize water by pushing it under pressure through a semi-permeable membrane.
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