Subscribe to Newsletter
Want to be notified when we release a new in-depth guide or product review? Sign up to our newsletter and receive updates when we publish new content.
So, you’ve been working hard on your grow room or grow tent and everything is near completion and ready to go, but there’s still one piece of equipment that you’re unsure of, and you’ve been wondering whether or not you should include it in your grow room or grow tent.
That’s right, we’re talking about carbon filters! But not just any carbon filters, we’ve reviewed some of the best carbon filters you can buy!
If you’ve clicked on this article you’ve probably been asking yourself the same question, should I incorporate a carbon filter in my grow tent or grow room? And if so, Which is the best carbon filter? Or you may even be wondering, why do I even need a carbon filter? Well, the chances are you want to keep your grow room discreet, as well as odorless, which in turn will not only keep YOU happy, but most importantly your NEIGHBOURS happy, and hopefully unaware.
Maybe you need a 4” carbon filter? Or how about a 6” carbon filter? Aluminum or steel frame? As you probably already know, these features all play a big role in the performance of your carbon filter.
So If you’re looking to learn a bit more about carbon filters or maybe searching for the best carbon filter for your grow tent or grow room, then keep on reading.
Carbon filtering is a method of filtering which is used to remove contaminants and impurities from the air, using a chemical adsorption process. A bed of activated carbon is used within the carbon filter to achieve the required results.
A single particle or granule of carbon provides a big enough surface area or pore structure to expose the contaminants to the active sites. Just one gram of activated carbon is thought to have a surface area in excess of 3,000 m2 (32,000 sq ft).
Activated carbon is known to work via a process called adsorption, whereby contaminants and pollutants in the air are captured and treated inside the pore structure of the carbon substrate.
Activated charcoal carbon filters are extremely effective at removing particles, odors and such from the air, so are ideal for most indoor grow rooms or grow tents.
First on our list is an impressive 6″ activated charcoal carbon filter, made by the company Terrabloom.
Whether a beginner or experienced grower, at some point along the way you’ll eventually hear the name Terrabloom. They’re a well known trusted brand, and to be honest you can’t really go wrong when choosing a carbon filter made by Terrabloom.
In the 6″ model you’ve got exceptional build quality and excellent materials used throughout. With the added bonus of a 90-day warranty if anything goes wrong or is not up to standard.
Terrabloom only uses top grade RC-48 charcoal carbon throughout all their carbon filters, which is usually sourced from Western Australia.
The bed in this particular Terrabloom filter is an impressive 46mm thick, added to this it’s been machine packed with extremely small granules – that adds a massive 15% more carbon than what is normally seen in most carbon beds, of economy grade filters currently on the market today.
As well as the above, this filter is rated up to 550 CFM, 1.8″ (46mm) RC-4/8 virgin carbon bed. Which is effective for up to 24 months of continuous use.
This particular Terrabloom filter has a 6″ duct opening and is 24″ length, it also includes 2 machine washable pre-filters in black & white. All in all, it’s a top quality 6″ carbon filter.
Factory pre-installed flange & aluminum base
Quality brand & build
90-day warranty with the big online retailers
Eliminates most odors and nasties from the air when combined with a grow tent inline fan
Only top grade carbon used
Connecting the filter can be troublesome
For 4” filters, this baby is worth its weight. Don’t sleep on this extremely affordable Growneer 4” carbon filter. It has a 1050+ IAV Australian raw carbon, which delivers maximum filtration effectiveness. The reversible flange and base will also prolong its service life. The increased lifespan and high-quality Australian carbon make this filter perfect for any grow room. Keep your room clean while bringing in cleaner air to promote better plant health.
Included air scrubber for grow tents
1050+ IAV Australian carbon charcoal
Reversible flange & base
Unbelievably good price
Extended product life due to the materials used
Cone shaped base that utilizes the full use of the activated carbon
Well known brand
Reported short lifespan with some units
Airflow not great
Some smells still detected
Similar to other models, the Vivosun 4” Carbon filter also comes with a pre-filter unit. This pre-filter unit will make sure that the air passing through the filter gets thoroughly cleaned. The carbon charcoal used in this filter is commonly used in most filters. A unique attribute of this device is that the company Vivosun claims that its device will filter 100% of air flow. Having a reversible flange means that there are two ways you can use this carbon filter. We also like this 4″ filter because it provides great value for the cost and a long two-year lifespan. Keep in mind, this carbon filter requires regular cleaning. Stay up to date with the maintenance to keep your filter in top shape.
Delivers 100% filtered airflow & can be used for intake or exhaust
Australian 1050+ RC 48 activated charcoal
Another well known top brand
Good price which includes some extras
Reversible flange for extended product life
Gets clogged in a short time frame
Smells can sometimes be noticeable
This 6″ carbon air filter can remove most odors and nasties from the air. It will give you a clean air environment for your crop to be at it’s healthiest, which will allow your plants to thrive. We love filters with the Galvanized steel frame, this makes them much more durable and longer lasting. You definitely won’t regret this purchase. This filter is machine packed and enables 99.8% air flow. We would say the best thing about this filter is its long lifespan. Being made from galvanized steel ensures it will last through germination, flowering, and harvesting.
Machine packed offering 99.8% filtered airflow
Well known brand
1050+ IAV Australian charcoal
Inner & outer mesh offering 53% better airflow
Premium zinc-anodized steel free from planting chemical corrosion
Odors still noticeable with some units
Built with an outstanding 50mm thick layer of carbon filter makes this the thickest of all the carbon filters out there in the market. This filter is perfect for eliminating the odor coming from your precious plants. Those dank buds won’t know what to do with all the fresh air. This Ipower carbon filter is also known to have a 53% open area. This is important because it increases the air flow rate and delivers faster odor elimination. We know that you will really enjoy the extra thick carbon filter on this model.
Reversible base & flange for extended product life
Well known brand
1050+ IAV Australian RC412 activated carbon
Inner & outer mesh
Weighs 50% less with its aluminum construction
Odor still noticeable with some units
Odd smell when in operation
The 46 mm RC-48 activated, certified virgin carbon bed will soak up and eliminate some of the most undesirable odors and potentially harmful chemicals in the air. The Aluminum frame allows for reduced weight but also reduced durability. Machine packing the carbon bed means a higher volume of carbon and less movement. We like the claim by the manufacturer that the filter comes sealed, bagged, boxed and labeled directly after being manufactured for optimum life span, handling, and presentation.
Anti Air Bypass System
Certified virgin carbon bed inside
Well known brand
Sealed & boxed directly after being manufactured
Custom mesh 51% open air
Some units not as advertized
Damaged items upon opening
Odors still noticeable
There you have it, a comprehensive guide to some of the best carbon filters on the market today. Hopefully, you discovered the best carbon filter for your grow tent or grow room. But if your still unsure, why not click back to our homepage, click on the product tiles and take a look through our hand-picked selection of some of the best carbon filters available.