Top 10 Best Carbon Filter for Grow Room | Reviews and Buying Guide

The best carbon filters are a useful and handy tool for any gardeners. From air purification to water, a carbon filter is an affordable, simple and easy to access tool for long time usage. Another good thing about of best carbon filter for growing room is, its 100% safe for any plant, soil, and water.Best Carbon Filter for Grow Room

In a carbon filter, the first and foremost element is activated carbon/charcoal/coal. It’s a form of carbon which process to work it extremely porous and has a large area for adsorption or chemical reaction. Only one gm of activated carbon has the surface area to excess 500 m are of nitrogen adsorption. So, having a carbon filter will not only remove the order of an indoor garden but also purify the air from toxins.

Comparison of 5 Best Carbon Filter for the Money

Carbon FilteriPower 6 Inch Air Carbon Filter (Editor's Choice)iPower 4 Inch 190 CFM Carbon FilterBlue Pure 411 Air PurifieriPower 4 Inch Air Carbon FilterVIVOSUN 6 Inch Air Carbon Filter
ImageiPower 6 Inch Air Carbon FilteriPower 4 Inch 190 CFMBlue Pure 411 Air PurifieriPower 4 Inch Air Carbon FilterVIVOSUN 6 Inch Air Carbon Filter
Editor's Rating4.5/54.5/54.6/54.4/54.4/5
Length16 Inch12 Inch8 Inch12 Inch18 Inch
Weight11 Pounds16.1 Pounds3.35 Pounds6 Pounds14.11 Pounds
Warranty1 Year2 YearsInfo N/A1 Year1 Year

10 Best Carbon Filters for Grows Room

Having trouble to find the best carbon filter? Here are given below some tried and test best quality carbon filters for grow tent. Have a look below.

iPower 6 Inch Air Carbon FilteriPower 6 Inch Air Carbon Filter - best carbon filter for grow tent

Our first best carbon filter for grow room review is for ipower air carbon filter. Its a six-inch air filter with 1050+ IAV Australia charcoal, reversible flange, prefilter etc. the Australian virgin charcoal RC 412 is considered best quality charcoal for air filtration. It promotes cleaner air, better odor control which promotes health and also maintains privacy.

The reversible flange and the base work well for extended service life. You can remove them to reverse the charcoal canister to flip the filter body upside down. So you have full freedom to reuse the filter or alter its position anytime as per need.

Usually, the cheap carbon filter is easy to set up and fairly light. If you charge the pre-filter, it will last for 12-18 months for sure.

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  • Consist of best quality porous carbon.
  • Offers 53% open area for air flow.
  • Includes the replaceable pre-filter.
  • Reversible flat for longer service life. 


  • Some users complained that it makes smell or noise sometimes. 


iPower 4 Inch 190 CFM Duct Inline Fan with 4″ Carbon FilteriPower 4 Inch 190 CFM - mountain air carbon filter

This filter best carbon filter for grow tent also from iPower. But it’s different from the first one because rather than a single filter the whole package comes with a four-inch 190 CFM Inline fan,  four-inch carbon filter, 12 inches long, four-inch duction which 8 ft long. It’s a whole combo to remove maximum odor created by plan, fertilizer and biodegradable things inside a tent. When the high flow passes through the honeycombs of the filter and activated carbon the odor molecules trapped inside the coal. And the result is only cleaner air.

This filter also has RC 412 Australian carbon. The carbon of the filter stays workable for more than two years. The filter works in 0- to 185 F. Overall this combo works well for large grow tent and can be said as pretty good deal due to its price.


  • Includes best quality Australian charcoal.
  • Works maximum odor for the air.
  • Easy installation process.
  • Corrosion resistant wire helix.
  • Pre-filter included. 


  • Makes noise to get older. 


Blue Pure 411 Air Purifier 3 Stage with Two Washable Pre-FiltersBlue Pure 411 Air Purifier -  cooker hood carbon filter

If you want a best cooker hood carbon filter especially for your room then the Blue Pure 411 Air Purifier is an ideal option to consider. This a small package but efficient air purifier for small to medium room. The filter not only removes noxious odors from the air it also captures 99% airborne pollutants like mould, allergies, dust, smoke etc. even pollen, pet dander is also removable by the Blue Pure 411.

The filter system uses three fan speeds which work best a 100sq ft, 161 sq ft, and 175 sq ft room. Compare than other carbon filters it produces only 17- 46 dB while on. That’s actually a shallow sound that you won’t even notice when you work. the filter also rated as Energy Star for best class energy performance. This one uses only 15 watts of current to work. This amount is lower than your average LED light. So you don’t need to tension about the extra electricity bill.

In the discussion, you might be clear that it’s not like other activated carbon filter which needs to attach exhausting fans and duction. The filter works individually and consists of two fabric pre-filters with a carbon filter. The pre-filter is its cover which comes in various colors (blue, white, orange, green, etc.). That makes this air purifier elegant and helps to brighten your home.


  • Three fan speed perfect to filter small to medium size of rooms or tent.
  • Capture maximum airborne politicians.
  • The outer and personalizable cover also works as a pre-filter.
  • Use less energy, even lesser than a LED light.
  • Noise-free operation. 


  • The longevity cant is assured thus it works in some case around six months only. 


iPower 4 Inch Air Carbon Filter Odor Control Scrubber with Australia Virgin Charcoal iPower 4 Inch Air Carbon Filter Odor Control Scrubber with Australia Virgin Charcoal

Like other iPower filters this one has a layer the Australian RC 412 Virgin activated carbon. This carbon absorbs a significant number of impurities from the air by trapping pollutant molecules inside the coal. The science behind the carbon filter is pretty straightforward. It does not let build up mould, mildew and other unhealthy components in the air by using its charcoal coating inside the canister. The filter also comes with pre-filter which make sure you get the clean carbon as long as possible. iPower carbon pre-filters need to change in every 6 months.

The filter is relatively reasonable in price. Besides, the carbon filter comes with a built-in flange also. It designed to fit most to use with maximum centrifugal inline and laminar air fans available in the market.

The good thing is the flange and base of this cheap carbon filter is reversible. You can remove them to reverse the charcoal canister very easily. It allows you to turn the filter upside-down and use the un-used side again.


  • Most exceptional quality activated carbon makes it’s more efficient on odor
  • Remove heavy chemical fume effectively. The aluminum construction makes it light but also increase the durability.
  • Makes low noise during work.
  • Includes a quality pre-filter also.
  • Affordable price. 


  • The installation process of the filter is a bit tricky in some cases. 


VIVOSUN 6 Inch Air Carbon Filter Odor Control with Australia Virgin Charcoal VIVOSUN 6 Inch Air Carbon Filter - whole house carbon filter

For the large size powerful carbon filter in the affordable price you can consider having VIVOSUN 6 Inch Air Carbon Filter. This six-inch carbon filter can remove maximum impurities from the air and leave only the fresh air outside. The filter comes with a pre-filter also. The pre-filter makes the cleaning or purification more effective.

The VIVOSUN filters are perfect use in grow tents, cupboards, and cabinets anyplace where the roof/ceiling cavity to extract the air into. The filter’s heavy activated carbon layer with inner and out mesh works to reduce smoke or chemical fume of the room. So in case your greenhouse or grow tent filled with smoke or increase the temperature somehow, it will work immediately to reduce the temperature.

Besides all of this, the filter is usable any double/triple stored house, in the window to window ventilation application and got/cold air filtration room.


  • Made of 1050+ 48 rc Australian activated carbon.
  • Protects your plants for chemical irritants inside the grow tent.
  • The odor control performance is pretty impressive.
  • Also, usable in different parts of your house or workplace.
  • Easy to set up. 


  • Not so durable. 


Growneer 4 Inch Air Carbon Filter with Reversible Flange Odor Control Growneer 4 Inch cheap carbon filter

The Growneer 4 Inch Air Carbon Filter with Reversible Flange Odor Control is an active filter to remove any kind of odor. Also, it does not leave any odd smell to get older. You can use for the greenhouse, grow tents, kitchen, bathroom or anywhere you want it in your house. This filter is perfect for those house with the animal.

Its made of Australian raw carbon the 1050+ IAV Australian charcoal. Its one of the finest absorbent carbon that can filter all the impurities from the air. The charcoal features impressive absorbent effectiveness that might not give your old carbon filter.

Furthermore, the base shape of the filter is the cone type. The design is based on the mechanic’s principle which can make the full use of active carbon to make out the best result from it. Compare then the price and other features, this one is pretty reasonable and durable too.


  • The filter made of high quality activated carbon works for a long time.
  • Works great to remove bad smells.
  • Affordable price.
  • Require no maintenance.
  • Durable construction. 



  • Anything rigid (duct line, exhausting fan) may not with the filter without modification.


Amagabeli 4 Inch Carbon Filter Odor Control for Hydroponics Indoor Plants Grow TentAmagabeli 4 Inch Carbon Filter Odor Control for Hydroponics Indoor Plants Grow Tent

The Amagabeli carbon filter is the small size of the air-purifying filter that purifies the air of hydroponics indoor grow tents. Also its usable for a room with full of pet, in a small bedroom, kitchen etc. the filter removes any foul smell, air pollutants that not only makes environment toxify but also living unbearable.

The filter is made of Australian virgin charcoals. This activated carbon can remove 99% volatile air particles and odor form air. The filter comes with also a washable free-filter with the elastic band. It’s worn around the carbon filter. This pre-filter and carbon filter works together keeping the air fresh and light cool always.


  • Works great on complete air filtration with any setup.
  • Easy to install and maintenance free.
  • Long-lasting aluminum
  • Usable as reverse smell filtration.
  • Cheap in price. 


  • The size is not what it advertised. 


VIVOSUN 6 Inch 440 CFM Inline Duct Fan with 6 Inch Carbon Filter Odor ControlVIVOSUN 6 Inch 440 CFM Inline Duct Fan with 6 Inch Carbon Filter Odor Control

The VIVOSUN 6 Inch 440 CFM is super combo package of six inches inline duct fan and a six inches carbon filter. The fan-produced air well for design 6 inches. It could pull air through the carbon filter effortlessly. Also, the built-in speed control of the fan is a bonus. The fan speed is 2450 RPM but puts only 50dB noise. Compare then the other is really quite. The has used to move air through the target location for optimal ventilation process.

This cooker hood carbon filter is suitable to use anyplace need to purify the air. It contains 1050+ RC Australian 48 Virgin Charcoal bed. Also, its quality inner and upper mesh provided 53% space to raise the air flow in and out. So, it not only reduces Chimal and another component of the air but also remove ill smell form it. That is why you can install it on the bathroom, kitchen, basement, lab, greenhouse etc. along with the grow tents or indoor garden.


  • A potential system to filter a vast amount of air.
  • Works to the maintain a low amount of smell.
  • Reduce heat as well.
  • Durable product.
  • Suitable to use kitchens, bathrooms, greenhouse, grow rooms and tents. 


  • The cord could be a little bit longer.
  • The fan rattles over time. 


Activated Charcoal Carbon Filter 6″ x 24″ Activated Charcoal Carbon Filter 6" x 24"

Bigger tents need large size of carbon filter that works to fresh the environment. The Activated Charcoal Carbon Filter 6″ x 24″ is something like that. Its made of RC- 4/8 grade virgin Australian carbon. Its one of the high-quality charcoal two purifies air form all type of contaminants. However, the filter has 46 mm thick carbon with 15% more carbon. This carbon filter is more durable and eliminates maximum impurities from the air.

The filter comes with 2 machine washable pre-filters- black and white in color. You need to change the filter once in 6 months. Moreover, the filter package has a pre-installed aluminum flange and bottom.

This set is overall easy to install. Its better quality and sleek design assure almost 24 months of service work. Hence it takes time to remove strong chemical odors from the air sometimes.


  • The filter is a layer of high-quality virgin activated charcoal.
  • Suitable for most size of grow tents.
  • Offers longer lifespan.
  • Includes a pre-filter also. 


  • Take long time at removing strong odors from the air.


iPower 6 Inch 442 CFM Duct Inline Fan with 6 Inch Carbon FilteriPower 6 Inch 442 CFM Duct Inline Fan with 6 Inch Carbon Filter

If you want a powerful carbon filter to purify the air of your grows tent then the iPower 6 Inch is a perfect option to consider. This big boy is working effectively to reduce any contamination from the air. It’s a filter and fan combo and very easy to install. The filter has a 50mm carbon bed which made of high-quality Australian RC 412 carbon. Also, it has a big mesh opening for effective air scrubbing.

The filter works on negative pressure and high heat as well. Infect it helps to reduce heat from the air and proved a fresh and cool environment all the times.

The great thing about the filter is, due to its size and capacity you can use this in your kitchen, lab, bathroom, basement or garage. This whole house carbon filter comes with six inches 442 CFM Duct  Inline fan blower which made of Ul materials. However, it makes a noise sometimes.


  • Strong and durable construction.
  • Made of most excellent Australian activated charcoal.
  • Offers multi-function like remove heat and bad smell from the ar at the same time.
  • Usable for kitchen bathroom and any plant grow section.
  • Includes pre-filter also. 


  • Quite big.
  • Makes noise during work. 


What is Carbon Filter?

The carbon filter is filter filled or layers with activated carbon which filter out all the impurities from air or water. In an air filter, pollutants adhere to carbon particles during air pass on it.

The carbon filter is not only useful for removing impurities but also eliminates odors from the air of the indoor garden. It’s a pretty simple tool consisting of a light canister filled with charcoal and a pre-filter (optional).

How to Use Carbon Filter

Using a carbon filter is essential especially for indoor gardeners. Otherwise, it will make the garden environment and your home smelly and toxify over time. This tree produces oxygen, but the biodegradable product such tree leaves, brunch etc. produce nitrogen and other gas. Also, the fertilizer and insecticides you use on plants produce many toxic fumes. In open garden, these contaminants can work as much it work on the closed indoor environment. That is why an activated carbon filter can work best to purify closed air garden. But you have to set the exhausted fan correctly in order to accomplish the carbon filter properly. So,

  • Choose the Quality Exhaust Fan

Use a loud exhaust fan which creates enough vacuum in the growing space in your grow tent.  So, all the garden air will flow in the vacuum and get through the filter. In fact, this kind of vacuum or suction process can remove 60% odor from the air without a carbon filter.

  • Prevent Any Leakage

Preventing any leakage from the grow tent is important. The air should have only one way to enter from the filter and out straight another place. If there are leaks that could have possible for ducting or around the grow light, then unfiltered air will escape, and odd smells will remain on the tent. So, carefully examine the tent and another setup and fix all the holes and creaks.

Benefits of Using Carbon Filter

For safe and natural air filtration there is nothing better than installing a carbon filter inside your air exhausting system. Here is why you should use a carbon filter.

  • Activated carbon can work in any low to high temperature and humidity condition.
  • It can catalytically destroy ozone which is the primary element of smog.
  • It has the significant number of organic molecules particularly solvents.
  • Carbon filter can absorb any virtual vapor, either good or bad.
  • Has the capacity to absorb heavy chemical fumes successfully.
  • It does not make the air dry. So the plant will grow usually.
  • This filter is perfectly safe to work with bare hands.

How to Choose the Best Carbon Filter

There are tons of carbon filter available out there. To find your right kind of carbon filter here is some clue to utilize. Such as,

  • Materials

Carbon filter can use different types of carbon in a different amount and thickness. Proper thickness for air purification is mandatory. It should be 35mm to 46 mm. However, always check the quality if your air purifier.

  • Multiple Using

Many carbon filter comes with an inline or exhaust fan. These are pretty good to deal to have all things in the same size and brand together.

  • Cost

Usually, you will find 25-80 dollars of air filter made of activated carbon usable for next 12-16 months. For the high-quality carbon filter, you should ready to spend little more.

Final Words

At the end, all we can state that is, you should install a carbon filter along with the exhausting fan to maintain a healthy environment for your house/grow tent/grow room. Both together will produce cleaner air which not only keeps a balanced air for greenhouse or grow tent but also make your living peacefully in the house.

Our top editors choice for best carbon filter is iPower 6 Inch Air Carbon Filter with Reversible Flange Odor Control. For efficient work, durability and hassle-free maintenance this one is must have a carbon filter for any house. Once installed you can relax for the at least a year. Besides, this best carbon filter comes under budget as well.

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