Sniffing Out the Best Carbon Filter for Grow Room


There are many reasons to find the best carbon filter for grow room, especially when you choose to grow your plants completely indoors.  When this totals just a few plants, especially flowers, it can produce a pleasant aroma and contribute to fresher air in the home. 


Unfortunately, for massive amounts of plants, and plants that are bred to yield a hefty crop and not a beautiful sight inside your room, there might actually start to be a lowering of the air quality of the home. 


Pollen, decaying leaves, and other gasses let off by growing and senescing plants can sure pack a wallop on your scent receptors, not to mention your allergies.  (These filters are also rumored to be quite effective for masking the smell of some rather pungent, but potentially legally dubious, plants as well!)


The solution?  The best carbon filter for grow room is an activated carbon air filter!


Let’s look at the magic behind how activated carbon works, what they do in a filter unit, and some common concerns about them and find the Best Carbon Filter for Grow Room




What is activated Carbon?

According to activated carbon’s page (Could there possibly be a better place to get the definition?) activated carbon is an adsorbent with a high surface area, unique pore structure, and high degree of surface reactivity.  If you’re anything like me, you probably read ‘absorbent’ there… so, let’s read it again carefully:  aDsorbent.  


Actually, the two are really similar to one another.  When something is aBsorbed, it is drawn and stuck INTO something.  When something is aDsorbed, it is drawn and stuck ONTO something.  To try to use the word casually, we could say “The whiteflies were aDsorbed onto the yellow sticky pad.”  


So, to put two and two together, we can say that activated carbon is a very very very sticky “sticky pad” (for pollen and odors) with a huge surface area and nice little pores to hold onto everything.  Great!

Best Carbon Filter for Grow Room
Best Carbon Filter for Grow Room,



How do carbon filters work?

Carbon filters look a lot like the exhaust pipe out of the back of your car.  (Actually, activated-carbon filters are a part of most car exhausts) Lined with activated carbon, the filters pull in the air in the room and recycle filtered air back into it.  The result is a room with better smelling and higher quality air.  The pollen-allergic in your family will thank you, too!

Best Carbon Filter for Grow Room uses Multiple filtering Layers
Best Carbon Filter for Grow Room uses Multiple filtering Layers,



Is this going to get noisy?

We’ve mentioned it before with air pumps, but it is worth stating twice:  Whenever you are looking to add an appliance with consistently moving parts to your home, those parts will make noise and that might be a problem.  Let’s pull out our handy decibels (dB) chart again:


As you can see, something in the ’40s wouldn’t be too bad for something in a room not adjacent to your bedroom, while machinery with sound production too far over the 50 dB mark might only be appropriate for the corner of your home directly opposite your bedroom.


So, how do carbon filters fare?  Well, luckily, they are actually quite often designed for grow rooms.  Most people that use them don’t report any issues with the noise.  As an example, this Vivosun system lists a dB rating of just 49 – a bit under the hum of your refrigerator.

Noisy Fan
Noisy Fan, Source



Is carbon-filtered air safe for my family and pets?

Even fish, which spend most of their time avoiding spending too much time in the air, need it.  It isn’t the kind of thing you really want to mess with at the drop of a hat – if it ain’t broke, don’t fix it.  As a result, it shouldn’t be surprising that this question is pretty popular.  Let’s look at it in detail!


Carbon filtration is super safe, as it were.  Bad things are removed from the air, but all of the essentials are going to make it all the way through to your lungs – there’s no need to worry.  Historically, carbon was used as far back as the time of the ancient Egyptians and these air filters were also used semi-effectively in gas masks as an attempt to protect the troops in WWI.  In other words, these filters work to make your air safe… you and your family will be fine!





So, that’s it!  If you want The best carbon filter for grow room to filter out the pollen and any nasty lingering odors, “activated” carbon filtration is the way to go!  It is safe, effective, and has centuries of use leading up to its present form.  Please be sure to check out our reviews if you’re having trouble making a final decision on which one to buy!



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John Alexander is a writer, English language educator, and plant enthusiast. After graduating from the University of Tennessee in Knoxville, he began working in labs filled with plants - identifying their seeds, counting their pollen, extracting their DNA, and (of course!) watering them as needed. Nowadays, he is focused more on words and language, whether that be teaching or writing.