Top 3 Best 4 Inch Carbon Filters for a 3×3 Grow Tent (Updated 2021)

Grow rooms need good ventilation to keep cool, fresh air coming in, and warm, moist “used” air going out. But indoor growing can produce unwanted and even potentially toxic odors and contaminants from soils, fertilizers, and the plants themselves. Since the exhaust air often flows into an adjacent indoor area, adding activated carbon filters to your airflow system is the best way to control odors and contaminants.

How does a carbon filter work?

Every grow room or grow tent has air hovering around that produces a bad smell. Instead of this air escaping outside the grow room, it passes through a carbon filter that has activated charcoal. The work of the activated charcoal is to chemically absorb the odor from the air and allow clean air to circulate in the grow room. The activated charcoal contains little carbon molecules that are very efficient in absorbing weed odor and that of other different crops.

Good odorless air then comes out of the carbon filters exhaust and you can enjoy farming in a fresh clean grow room. To make the process even efficient, you need a fan to suck or push the air out. The majority of the carbon filters come fitted with inline fans, which are very effective in ventilating the room.

What Size Carbon Filter For 3×3 Grow Tent

Grow tent of 3×3 size falls in the category of mini tents suitable to grow 2–4 large or medium-sized plants. Here the internal area or volume is too small to hold big filters.

So, a carbon filter of 4-inch will do air cleaning and odor absorbing jobs efficiently in this 3×3 size tent.

However, if you are using high-pressure lights then it’s better to go for a 6-inch filter in this scenario. Otherwise, you may not be able to control heat.

ECO Farm Carbon Filter 4"

Features:

ECO Farm carbon filters are made with extreme quality materials and they are some of the most efficient in the market. The 4 inch is great especially for marijuana grow room farmers. The product also works well in any other place that does not have a celling or roof cavity to displace extracted air. Such places could be cabinets, cupboards, and lower level floors of storeys buildings. The product also works well in air-cooled lighting rooms and window-to-window applications. Made with superior quality carbon, the product comes fitted and has the ability to deliver 100% uninterrupted airflow.

The product has the ability to capture three times more air contaminants than average due to its optimal surface area per carbon particle. This quality product eliminates odor from the grow room and protects the crops from chemical irritants. The same product also works well to absorb bad odor in pet houses, kitchens, bathrooms, and basements among other places.

Vortex VTX400 220 CFM 4" Inline Fan and Pro-Lite Filter Carbon Filter

Features:

Manufactured with only the finest virgin RC-48 Australian activated carbon, the Pro-Lite filters effectively remove 99.5% of volatile organic compounds. The PreFilter eliminates bigger particles such as dust to prevent premature usage of carbon. Rated for continuous worry-free operation, lightweight, and compact dimensions, make the Pro-Lite filters ideal for your air filtration needs. It has an aluminum top and bottom to reduce weight and increase installation convenience. 51% of the perforated open area provides maximum airflow.

CoolGrows 4 inch Air Carbon Filter

Features:

Bad odor is a turn-off in grow rooms and grow tents both for you and the crops. You can have the most efficient grow rooms by using CoolGrows products which are some of the best odor removers in the market. A carbon filter has all the abilities to remove bad smells from your grow room, and other rooms in your home.

It is a long-lasting product made with a sturdy aluminum galvanized body and a rest-resistant mesh made with high-quality iodized zinc. With the product, you can be sure of almost 100% of uninterrupted airflow and an increase of the surface area between the inner and outer mesh of the filter. This is because the carbon in the filter is machine-packed to give efficient results.

What to consider when choosing the best carbon filter for grow room

The market has tons of carbon filter options available in the market and it is therefore important that you choose the right one for effective results. The following factors will help you in choosing the best carbon filter for your grow room.

Material
The material of the carbon filter is one of the most important factors to consider when you are choosing your product. The majority of the filters have heavy-duty premium galvanized steel which ensures their durability and performance. Premium material is pricier than other materials but does not compromise quality by opting to buy less expensive carbon filters. Maintenance of good quality premium material is also easier compared to other materials.

Pre-Filters
The majority of the most quality carbon filters come readily packaged with pre-filters that you can use outside the carbon filters. The pre-filters play a big role in helping with the elimination of dust and other particles in the grow room. With these out of the way, the carbon filter and inline fan stay clean and work more efficiently. A pre-filter also increases the life span of a carbon filter.

Compactness And Portability
Noise is irritating and if you want a carbon filter with no or very little noise, buy one with compact carbon filters. These have less noise and vibration during their operations. Compact carbon filters also have a better odor and smell absorbent capabilities. Also, make sure you get a carbon filter that is easily portable in case you want to change its position in the grow room.

Thickness
The thicker the carbon is in the filter, the better the absorption abilities. Filters with more carbon thickness control odor better than those with less thickness do. they are very efficient and as such attract more costs. they are however worth every cent.

Size
The size of your grow room will also determine the size of the carbon filter you want to buy. Carbon filters come in five different sizes, which are 4-inches, 6-inches, 8-inches, 10 inches, and 12 inches. For small-scale marijuana farmers, a 4-inch carbon filter will do just fine. The majority of the carbon filters also come with manufacturers’ guarantees ranging from 3 months to 2 years depending on the size and brand.

Conclusion 

Your best carbon filter for grow rooms needs a filter to stop odor from escaping and also to keep bugs out of the system. A carbon filter is the best choice since it’s reliable and relatively quiet. They are only as effective for indoor growing as the carbon in them, so when choosing a filter, go for the best carbon filter for the growing room, one that has high-quality activated charcoal and has plenty of it. Thicker carbon filter beds mean a longer lifespan and more effective odor control and filtration.

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