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carbon filter for growing weed

Carbon filter for growing weed

# of Amazon Reviews: 16+

Average Amazon Review: 4.1 stars

The light is a bit more intense than those with 3W chips, as this uses 5W LEDs instead – 88 of them. The optics are all jewel-quality glass focused at 90 degrees. In addition, it has two 15W UV-B tubes to enhance growth at the flowering stages. This panel runs cool and quiet with its built-in fans, and it comes with a 3-year warranty. California Lightworks is always a very well-recognized brand in the LED community, so you can’t go wrong here. It’s also one of the most popular lamps for producing flower for CBD oils and tinctures.

There are a couple of things you absolutely need to consider before choosing the best LED grow light:

iPower 4 Inch Carbon Filter + Kit – Economical Choice

The new and improved Reflector Series model features a veg/flower switch, so it’s better than some of the cheaper LED grow lights on the market. This LED grow light definitely shined during the flowering stage, the results that we saw were incredible. We were extremely impressed with this grow light, especially with the brightness (our plants were thriving).

Average Amazon Review: 4 stars

California Lightworks 440W LED Grow Light definitely falls under one of the more expensive lights on our list, but this is one situation where you get the results you pay for. This particular unit comes in a bright red color – a stark change from subtly-colored light panels from other manufacturers.

Runner Up: Vivosun 4 Inch Air Carbon Filter

This is great bang for your buck. One of the lowest priced option of the bunch and great energy savings. With only 269 watts pulled from the outlet, the light is able to still give high PAR value (equivalent to a 600W HPS/MH) which will allow for very valuable savings after a few months, so you should be able to get your $ back soon.

50,000 hours, but does lack a power switch – which can be an annoyance to some growers. What we have noticed is that this particular light is great for medium sized, simple set up.

As I stated a charcoal filter isn’t necessarily needed. However, it should be mandatory for all indoor growers, who live in the city or who have visitors over often. So, do your research, and get the best one for your particular situation.

Stay away from ozone generators and use that money instead to purchase a better grow tent ventilation and carbon air filter.

If you are curious, look at the appendix for more info on activated carbon.


The CFM size that you need depends upon the size of your grow room. So, more CFM is not necessarily better. Check this article out for a guideline on what CFM size you should purchase.

As stated earlier, activated carbon is made to have more holes than regular carbon, which means that it absorbs smells better and able to filter out more pollutants than standard carbon. Charcoal has been used for centuries as a filter. In fact, gas masks in World War I even used carbon filters. So, if activated carbon filters can protect soldiers from mustard gas or another chemical, it sure can work as an effective odor neutralizer.

Do They Help With Air Quality?

Ozone generators are marketed as an air, quality, control device. Some of the manufacturers claim that they will help with both air quality and also help control smells. The question though, is do they work, and if so, to what extent should you use them in your grow room or grow tent ?

Along with a quality air carbon filter, you will also need a suitable ventilation system for your grow tent or grow room. The grow tent ‘s veniliation system creates a vacuum-like effect in your grow area as it works to suck the bad air out. Otherwise, without a ventilation system, the overall environment would be stagnant.