Best Carbon Filters [Updated!]

by Morgan

Last update:

November 21, 2023

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For this product, you will get around 15-percent more carbon than other economy graded filter that uses 38mm thick carbon beds. 


  • It can be installed both inside and outside the grow tent
  • It is capable of filtering air in both directions
  • It can handle airflow rates up to 550 CFM

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2. [Best For The Money] iPower 4 Inch Air Carbon Filter

iPower is an effective odor control filter that protects from chemical irritants and removes odors from kitchens, grow tents, bathrooms, and basements. 


  • Versatile applications
  • Reversible flange and base
  • Pre-filter included

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3. [Best Reversible Filter] Amagabeli 4 inch Carbon Filter

Amagabeli is the best absorbent carbon filter that comes with a 1050 plus IAV Australian virgin charcoal bed and packed carbon allows 99.8-percent filtered airflow.


  • Moving air, purifying air and filtering air.
  •  Inner and outer mesh provides 55% open area allowing increased air flow
  • Washable pre-filter

Indoor growing gives you complete control over humidity level, temperature, lighting, and water. This kind of environment in your growing space will allow you to increase plant health, increase crops, and keep pests and pathogens away from your crop.

However, growing plants indoors will have drawbacks too. The environment can get smelly, and you will not get the pleasant floral smell of cannabis. This can create a bigger issue if you do not take immediate action. That is why cultivators came up with a solution to remove bad smells from your indoor plantation, which is nothing but carbon filters. The best carbon filter for grow tent to remove bad smells and allow your plants to grow healthy.

growing weed indoors in soil

Best Carbon Filter Reviews

Finding the Best Carbon Filter of this year can be a difficult task as there are many brands available in the market. The best carbon filter must be able to rotate air efficiently and remove strong smells from a grow tent. Grow tent smell increases during the flowering stage of plants. So it is important to choose the right carbon filter that can remove the smell from grow tents and keeps them fresh always.

Here you can find some of the Best Carbon Filters.

The Carbon Filters For Cannabis below are our top picks for the best scent control on the market.

TerraBloom Carbon Filter 6" x 24" Long, 46mm Thick Charcoal Bed, Airflow up to 550 CFM. Premium Carbon Air Filtration From Odors, VOCs, Chemical Smell for Grow Tents, Homes, Commercial Applications.
TerraBloom Air Carbon Filter is a Hydroponics 8-inch x 24-inch odor removal grow tent ventilation kit that activates charcoal scrubber for aligned duct fans up to 750-CFM. The manufacturer of the TerraBloom Carbon Filters says that they use only Western Australia’s high-quality RC-48 Charcoal Carbon. In TerraBloom Filters, the carbon bed is 46mm thick and packed with very small granules.

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For this product, you will get around 15-percent more carbon than other economy graded filter that uses 38mm thick carbon beds. By selecting TerraBloom Carbon Filters you are obtaining the best quality filtration system that works for a longer time.

TerraBloom Carbon Filter is designed to last for longer years. The company did not compromise on the quality of the major components. The carbon filter included a fan that removes the odors in your indoor plantation or grows tent. TerraBloom Carbon Filter can filter plant-based allergens, cigarette smoke, and any other bad smells from the grow tent, at your home, commercial space, workshop, etc.

The ventilation features include up to 750-CFM, 1.8-inch RC-4/8 Virgin Carbon Bed, and operation for up to twenty-four months of use. The TerraBloom Carbon Filet package includes a 1-inch x 24-inch carbon filter, a factory pre-installed aluminum-flange, and base, and two machine washable pre-filters. Also, this carbon filter brand comes with a 90-day warranty.

2. [Best For The Money] iPower 4 Inch Air Carbon Filter


iPower Air Carbon Filter is one of the best filters for indoor plants grow tent that comes with a pre-filter and removes odor using the Australia control scrubber with activated C for inline fan. iPower is an effective odor control filter that protects from chemical irritants and removes odors from kitchens, grow tents, bathrooms, and basements. Also, it absorbs smells from smoking, pets, pungent smell, and bad odors from indoor grow tents.

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iPower 4 inch Air Carbon Filter can be used as exhaust or intake filter in various structures including use with duct fans and inline fan, exhaust and intake fans, ventilation ducts, air-exchange fans, and more. The features of the inch Air Carbon Filter include 200CFM 4-inch size, 12-inch flange ducting, and 1050 plus IAV Australian RC412 activated carbon, and it is one of the best absorbent Carbon accessible globally. The reversible flange and bottom can be reversed for the charcoal canister that allows the inch Air Carbon Filter carbon filter to be placed upside-down for odor filtration and longer service life. It is recommended to replace the pre-filter every six-months to protect your carbon air filters.

iPower Air Carbon Filter is a professional grade carbon filter that contains special virgin carbons that comes from the most pressurized and oldest sources on earth. It controls the odor with AVC (Australia Virgin Charcoal) for inline fans. After using the filter for one year, remove the bottom mount and top flange, and flip the filter upside-down and re-assemble the bottom and flange in the new position to provide better odor scrubbing performance for another year.

3. [Best Reversible Filter] Amagabeli 4 inch Carbon Filter


Amagabeli Carbon Filter is one of the gest 4-inch odor control carbon filter that controls with Australia Virgin Air Scrubber. The AVC (Australia Virgin Coconut) activated charcoal for hydroponics indoor plants grow tent. This odor control Amagabeli 4-inch inline fan comes with a pre-filter combo. Amagabeli is the best absorbent carbon filter that comes with a 1050 plus IAV Australian virgin charcoal bed and machine packed carbon allows 99.8-percent filtered airflow.

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The outer and inner mesh offers a 55percent open area that enhances airflow.

Galvanized Steel Air Scrubber is more durable compared to aluminum and it lasts long from plants germination to harvest. The unit includes a Velcro seam to mount the filter easily and a washable pre-filter. Amagabeli air purifier eliminates pungent smell, odor, and bad smell from indoor grow tent, smoking room, hydroponic grow room, bathroom, living room, drying rooms, kitchen, welding workshop, pet house, 3D printer, and more.

Now, you can grow plants indoors like pepper, tomato plants, cilantro, vegetable lettuce, etc. as with the Amagabeli carbon filter you will get odor-free air at your indoor plantation.

The 4-inch carbon filter can be used for 4-inch inline fans, duct fans, can fans, exhaust fans, intake fans, ventilation duct, air exchange fans, air ducts, vent duct hoses, paint fumes hose, fan speed controllers, and other accessories. The reversible feature of the charcoal air filter allows you to use both exhaust filter and the intake filter. You can reverse the filter and use it as an intake filter vice versa you can reverse it to use as an exhaust filter. Reversible filter moves purify and filter air.


The best filters can not only remove bad odor from indoor grow tents but also keeps your plants healthy. For indoor plantation, maximum airflow inside a grow tent is essential to grow healthy buds. A carbon filter is an ideal add-on to the venting system as they remove the strong smell of cannabis as they smell very pungent during the budding stage.


1. How do I choose a carbon filter?

The best approach to determine what size carbon grow room filter to use is to make sure that the CFM value of your filter is either equal to or lower than the CFM values of your grow room and your exhaust fan, which can be found in the table below. Consider the following scenario: you have a 5ft x 5ft x 8ft grow tent: Multiply 5x5x8 to get the answer.

2. How good are carbon filters?

A carbon filter is very good at removing odors from the air. A Carbon filter also work well in reducing chemical fumes and gasses. A carbon filter can be used for a variety of purposes including home, office, or car use.

3. Are carbon filters as good as HEPA filters?

Both HEPA filters and carbon filters are capable of doing tasks that the other cannot. HEPA filters are more effective at eliminating larger, physical particles such as pollen, dust mites, mold, and other allergens than other types of filters. Carbon filters are more effective in removing smells, smoke, and other gaseous particles than other types of filters.

4. Are carbon filters good for air quality?

A carbon filter can be excellent at removing volatile organic compounds (VOCs) from the air. These are gaseous chemicals that most conventional mechanical filters, such as HEPA filters, are unable to filter out completely. With the use of a carbon filter, some of the gases released by cigarettes and other sources such as drying paint or household cleaning chemicals can be eliminated from the air.

5. Can I wash a carbon filter?

If you wash a charcoal filter with soap and water, the charcoal’s ability to filter air or water will be reduced or eliminated entirely. Rinsing the filter with hot water accomplishes the same thing as well as aiding in the release of any absorbed contaminants into the air. When the pores in the charcoal have completely absorbed all of the air contaminants, it is necessary to replace the filter.

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About the author 


I discovered the benefits of Cannabis at a young age in 2002, with years of trial and error, my knowledge grew just like my plants. As my love for cannabis unfolded I began to teach and learn, trying to gain as much information and practical growing experience.

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