3 Best Carbon Filter for Grow Room and Grow Tent 2019
Grow rooms need good ventilation to keep cool, fresh air coming in and warm, moist "used" air going out. But indoor growing can produce unwanted and even potentially toxic odors and contaminants from soils, fertilizers and the plants themselves. Since the exhaust air often flows into an adjacent indoor area, adding activated carbon filters to your airflow system is the best way to control odors and contaminants. Here's how to set up a carbon filter for ideal odor control to clean your air while maintaining efficient airflow.
The place for your filter is in the exhaust system. Can-Lite activated carbon filters mount easily to Can-Fan and Max-Fan exhaust fans for long-lasting, consistent filtering performance with minimal resistance to cause airflow loss. Can-Lite fans and filters can be hung from grow tent supports or attached to solid surfaces in rooms with walls or ceilings.
The filter should be mounted on the intake side of the fan to remove contaminants before they reach the fan housing. Can-Lite filters come with pre-filters to keep dust, mold, and other particles from clogging the activated charcoal in the filter itself, so you should be pulling air through the filter rather than pushing air into it.
You may have both supply and exhaust fans, depending on the size of your grow operation. Even smaller rooms or tents that draw fresh air from the surrounding area may need an exhaust fan to carry away hot, stale air and an intake vent or fan to bring in fresh. Ideally, in an enclosed grow space the fresh air supply will be near the bottom of the area and the exhaust will be near the top. This takes advantage of the fact that hot air rises and cooler, denser air accumulates lower. As the warm, moist air is exhausted, fresh air will flow in across the plants to take its place.
Carbon Filter Features
Unless you know a lot about carbon filters already, it is overwhelming to know what type of filtering system to buy. We have tried to take some of the guessing out of your decision making.
Picking the right filtration system does not need to be difficult. The features below will help you make sure you select the right carbon filter for your grow room needs.
Carbon Bed Thickness
The thickness of the carbon bed is one of the most important features you should look for in a carbon filter. A thicker carbon bed means the absorption is greater.
Air flow through the carbon bed is critical and you want the air to spend the maximum amount of time traveling through the carbon as possible. This makes the carbon filter effective in eliminating unpleasant odors.
Pre-Filters
A pre-filter is placed on the outside of your carbon filter. This will reduce external contaminants like dust and other airborne particles from entering the carbon filter.
A carbon filter that includes a pre-filter will increase the life of the carbon filter. A pre-filter will also protect any inline fan or other equipment accessories that are a part of your filtration system.
Carbon Filter Size
It is important to choose a carbon filtration system that is the right size for your grow room. The best way to do this is to measure the length, width and height of your grow room space. Multiply these 3 numbers together to get the overall cubic feet of your space.
For your filtration system to be efficient, you want to exchange all the air in your grow room at a minimum every minute. This means that the cubic feet of your space should at a minimum equal the CFM air displacement of your fan.
For the most effective carbon filtration system, you want your fan CFM to be slightly bigger than the cubic feet of your space. This ensures that the filtration system is working efficiently.
Filter Replacement
There is one drawback to a carbon filter system. Replacing saturated carbon filters over time can be expensive. When choosing a carbon filter, be sure it at least has a life expectancy of up to 2 years.
Follow the manufacturer’s instructions on replacement timing. Keep in mind that if you smell undesirable odors in your grow room, then it is time to replace your filter!
Eco Farm 4 Inch Air Carbon Filter
Air Flow: 200CFM; Dimensions: 4" Flange Ducting x 12" Length
1050+ IAV Australian RC412 Activated Carbon: One of the world's most absorbent carbon available
Extended Service Life: Reversible flange and base intended for extended service life, up to 2 years in life expectancy
Pre-Filter included: We recommend replace the Pre-Filter every 6 months to protect your filter
Effective Odor Control: The filter will soak up and eliminate some of the most undesirable odors and additional harmful and potentially ill-fating chemicals in the air. 50mm Carbon Layer of Thickness for Higher Absorption and Performance.
Here we have a great little carbon filter that works fine for small grow tents and grow tents with just a few plants. Moreover, it features a maximum airflow rating of 200 cfm, or 200 cubic feet per minute, which is more than enough for a small grow room.
It’s probably not the best for a very large grow room with lots of plants, but it works fine for smaller purposes.
Filtration
This particular option uses 1050+ IAV Australian RC412 Activated Carbon to remove odors and pathogens from the air, which in all reality is one of the best types of carbon around for this kind of thing.
This layer of carbon is 50 mm thick, which is pretty substantial and ideal for controlling the odor created by a few plants.
What is really cool is that theECO FARM Carbon Filter comes with a pre-filter included, which helps protect the main filtration unit from damage, and keeps it going for longer before the carbon needs to be replaced.
There is also an inner and outer mesh included here, which helps to greatly increase airflow, and this filtering efficiency and efficacy.
Other
Something else which stands out about this particular carbon filter is that it comes with a reversible flange, which means that it can used as both an air intake and an outtake system, depending on how you want to set it up.
The ECO FARM 4 Inch Air Carbon Filter is fairly easy to install, as it features a plug and play design, but do keep in mind that the ducting required for ventilation is not included.
Pros
Great for small purposes.
Reversible flange.
Plug and play capability.
Dual direction.
Cons
Not ideal for more than a few plants.
Ducting & fan not included.
VIVOSUN 6 Inch Inline Duct Fan with Carbon Filter
VIVOSUN 6 Inch 440 CFM Inline Duct Fan with 6" x 18" Carbon Filter Odor Control with Australia Virgin Charcoal
POWERFUL AIR FLOW FAN: Heavy hitting blower with a fan speed of 2450 RPM; Puts out only 50 dB noise level. Moves air through your target location efficiently for optimal ventilation.
SUPERIOR CARBON FILTER: 1050+ RC 48 Australian Virgin Charcoal Bed. Dimensions: 6'' x 18''
EFFECTIVE ODOR CONTROL: The carbon filter eliminates some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room.
FREE PRE-FILTER INCLEDED: We recommend replace the pre-filter every 6 months or after completion of each grow cycle.
VERSATILE APPLICATIONS: Kitchens, Bathrooms, Greenhouses, Grow Rooms, Grow Tents, etc
Alright, so far we have only looked at simple carbon filters, ones that do not come with an air fan for airflow, or any sort of ducting. However, here we have a cool option that comes with the carbon filter and an inline duct fan too, although it does not come with ducting.
The fact of the matter is that if you just want the fan and the carbon filter for odor control, this is a good option to go with, and even if you want to use it for ventilation purposes, buying the ducting for it is not that hard, and on that same note, installation is not difficult here either.The Fan
First off, the fan itself here has a top speed of 2,450 RPM, which is pretty impressive no doubt, but it only puts out 50 dB of noise, so it is a fairly quiet option. Now, the fan itself is not the most durable or long lasting, so be careful with it, as it has been known to break down with prolonged use.
What you may like here is that the fan included with this carbon filter has 3 speeds you can choose from.
The Filter
What you also need to know here is that the carbon filter itself is rated for 440 cubic feet per minute, so it works well for small and small-medium size grow rooms and grow tents. No, it doesn’t have a ton of power, but it works fine for smaller grow room applications.
Moreover, this thing is made with high quality virgin activated charcoal, and it does have a substantially thick charcoal bed, so it does a pretty fine job at clearing up odors in smaller grow rooms.
This filter does come with a pre-filter to keep it in working order for longer, and so that the charcoal needs to be replaced less often. The pre-filter requires replacement every 6 months, but the main filter only every 2 years, roughly.
What is also cool about this carbon filter is that it can be used as an intake and outtake, thanks to the reversible flange.
The place for your filter is in the exhaust system. Can-Lite activated carbon filters mount easily to Can-Fan and Max-Fan exhaust fans for long-lasting, consistent filtering performance with minimal resistance to cause airflow loss. Can-Lite fans and filters can be hung from grow tent supports or attached to solid surfaces in rooms with walls or ceilings.
The filter should be mounted on the intake side of the fan to remove contaminants before they reach the fan housing. Can-Lite filters come with pre-filters to keep dust, mold, and other particles from clogging the activated charcoal in the filter itself, so you should be pulling air through the filter rather than pushing air into it.
You may have both supply and exhaust fans, depending on the size of your grow operation. Even smaller rooms or tents that draw fresh air from the surrounding area may need an exhaust fan to carry away hot, stale air and an intake vent or fan to bring in fresh. Ideally, in an enclosed grow space the fresh air supply will be near the bottom of the area and the exhaust will be near the top. This takes advantage of the fact that hot air rises and cooler, denser air accumulates lower. As the warm, moist air is exhausted, fresh air will flow in across the plants to take its place.
Carbon Filter Features
Unless you know a lot about carbon filters already, it is overwhelming to know what type of filtering system to buy. We have tried to take some of the guessing out of your decision making.
Picking the right filtration system does not need to be difficult. The features below will help you make sure you select the right carbon filter for your grow room needs.
Carbon Bed Thickness
The thickness of the carbon bed is one of the most important features you should look for in a carbon filter. A thicker carbon bed means the absorption is greater.
Air flow through the carbon bed is critical and you want the air to spend the maximum amount of time traveling through the carbon as possible. This makes the carbon filter effective in eliminating unpleasant odors.
Pre-Filters
A pre-filter is placed on the outside of your carbon filter. This will reduce external contaminants like dust and other airborne particles from entering the carbon filter.
A carbon filter that includes a pre-filter will increase the life of the carbon filter. A pre-filter will also protect any inline fan or other equipment accessories that are a part of your filtration system.
Carbon Filter Size
It is important to choose a carbon filtration system that is the right size for your grow room. The best way to do this is to measure the length, width and height of your grow room space. Multiply these 3 numbers together to get the overall cubic feet of your space.
For your filtration system to be efficient, you want to exchange all the air in your grow room at a minimum every minute. This means that the cubic feet of your space should at a minimum equal the CFM air displacement of your fan.
For the most effective carbon filtration system, you want your fan CFM to be slightly bigger than the cubic feet of your space. This ensures that the filtration system is working efficiently.
Filter Replacement
There is one drawback to a carbon filter system. Replacing saturated carbon filters over time can be expensive. When choosing a carbon filter, be sure it at least has a life expectancy of up to 2 years.
Follow the manufacturer’s instructions on replacement timing. Keep in mind that if you smell undesirable odors in your grow room, then it is time to replace your filter!
Eco Farm 4 Inch Air Carbon Filter
Air Flow: 200CFM; Dimensions: 4" Flange Ducting x 12" Length
1050+ IAV Australian RC412 Activated Carbon: One of the world's most absorbent carbon available
Extended Service Life: Reversible flange and base intended for extended service life, up to 2 years in life expectancy
Pre-Filter included: We recommend replace the Pre-Filter every 6 months to protect your filter
Effective Odor Control: The filter will soak up and eliminate some of the most undesirable odors and additional harmful and potentially ill-fating chemicals in the air. 50mm Carbon Layer of Thickness for Higher Absorption and Performance.
Here we have a great little carbon filter that works fine for small grow tents and grow tents with just a few plants. Moreover, it features a maximum airflow rating of 200 cfm, or 200 cubic feet per minute, which is more than enough for a small grow room.
It’s probably not the best for a very large grow room with lots of plants, but it works fine for smaller purposes.
Filtration
This particular option uses 1050+ IAV Australian RC412 Activated Carbon to remove odors and pathogens from the air, which in all reality is one of the best types of carbon around for this kind of thing.
This layer of carbon is 50 mm thick, which is pretty substantial and ideal for controlling the odor created by a few plants.
What is really cool is that theECO FARM Carbon Filter comes with a pre-filter included, which helps protect the main filtration unit from damage, and keeps it going for longer before the carbon needs to be replaced.
There is also an inner and outer mesh included here, which helps to greatly increase airflow, and this filtering efficiency and efficacy.
Other
Something else which stands out about this particular carbon filter is that it comes with a reversible flange, which means that it can used as both an air intake and an outtake system, depending on how you want to set it up.
The ECO FARM 4 Inch Air Carbon Filter is fairly easy to install, as it features a plug and play design, but do keep in mind that the ducting required for ventilation is not included.
Pros
Great for small purposes.
Reversible flange.
Plug and play capability.
Dual direction.
Cons
Not ideal for more than a few plants.
Ducting & fan not included.
iPower 4-Inch 190 CFM Inline Fan with Carbon Filter
This iPower carbon filter has a 4-inch diameter duct opening and is 12-inches in length. The design of the 190 CFM inline fan blower uses a center hub and composite fan blades to reduce noise. By reducing vibrations from the fan blades, this carbon filter is a quiet option for your filtration needs.
The iPower fan with a carbon filter is a multi-functional product. It removes heat while eliminating unpleasant odors from your grow room at the same time. You should replace the included pre-filter every 6 months for best performance. This filtration system has a reversible flange and includes a 5-foot power cord.
The iPower filter uses Australian RC412 activated carbon and has a life expectancy of up to 2 years. You have a variety of installation methods available with this kit which allows you to choose the best option for your grow room needs.
Features of this carbon filter:
4-inch diameter duct opening
12-inches long
Up to 190 CFM
Inline fan blower
1050+ Australian RC412 carbon
Includes a pre-filter
Life expectancy of up to 2 years
This iPower carbon filter has a 4-inch diameter duct opening and is 12-inches in length. The design of the 190 CFM inline fan blower uses a center hub and composite fan blades to reduce noise. By reducing vibrations from the fan blades, this carbon filter is a quiet option for your filtration needs.The iPower fan with a carbon filter is a multi-functional product. It removes heat while eliminating unpleasant odors from your grow room at the same time. You should replace the included pre-filter every 6 months for best performance. This filtration system has a reversible flange and includes a 5-foot power cord.
The iPower filter uses Australian RC412 activated carbon and has a life expectancy of up to 2 years. You have a variety of installation methods available with this kit which allows you to choose the best option for your grow room needs.
Features of this carbon filter:
4-inch diameter duct opening
12-inches long
Up to 190 CFM
Inline fan blower
1050+ Australian RC412 carbon
Includes a pre-filter
Life expectancy of up to 2 years
VIVOSUN 6 Inch Inline Duct Fan with Carbon Filter
VIVOSUN 6 Inch 440 CFM Inline Duct Fan with 6" x 18" Carbon Filter Odor Control with Australia Virgin Charcoal
POWERFUL AIR FLOW FAN: Heavy hitting blower with a fan speed of 2450 RPM; Puts out only 50 dB noise level. Moves air through your target location efficiently for optimal ventilation.
SUPERIOR CARBON FILTER: 1050+ RC 48 Australian Virgin Charcoal Bed. Dimensions: 6'' x 18''
EFFECTIVE ODOR CONTROL: The carbon filter eliminates some of the most undesirable odors, pungent smell and particulates from indoor grow tent, hydroponics grow room.
FREE PRE-FILTER INCLEDED: We recommend replace the pre-filter every 6 months or after completion of each grow cycle.
VERSATILE APPLICATIONS: Kitchens, Bathrooms, Greenhouses, Grow Rooms, Grow Tents, etc
Alright, so far we have only looked at simple carbon filters, ones that do not come with an air fan for airflow, or any sort of ducting. However, here we have a cool option that comes with the carbon filter and an inline duct fan too, although it does not come with ducting.
The fact of the matter is that if you just want the fan and the carbon filter for odor control, this is a good option to go with, and even if you want to use it for ventilation purposes, buying the ducting for it is not that hard, and on that same note, installation is not difficult here either.The Fan
First off, the fan itself here has a top speed of 2,450 RPM, which is pretty impressive no doubt, but it only puts out 50 dB of noise, so it is a fairly quiet option. Now, the fan itself is not the most durable or long lasting, so be careful with it, as it has been known to break down with prolonged use.
What you may like here is that the fan included with this carbon filter has 3 speeds you can choose from.
The Filter
What you also need to know here is that the carbon filter itself is rated for 440 cubic feet per minute, so it works well for small and small-medium size grow rooms and grow tents. No, it doesn’t have a ton of power, but it works fine for smaller grow room applications.
Moreover, this thing is made with high quality virgin activated charcoal, and it does have a substantially thick charcoal bed, so it does a pretty fine job at clearing up odors in smaller grow rooms.
This filter does come with a pre-filter to keep it in working order for longer, and so that the charcoal needs to be replaced less often. The pre-filter requires replacement every 6 months, but the main filter only every 2 years, roughly.
What is also cool about this carbon filter is that it can be used as an intake and outtake, thanks to the reversible flange.
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