Carbon odour filters Prima Klima

Choose from a wide range of odour filters, from more affordable options to products designed for professionals. Installing a filter before the fan cleans the air in systems used for indoor growing. The main working component of odour filters is activated carbon, which removes unpleasant odours from the air extracted from a grow tent.

Carbon filters are environmentally friendly and have a positive effect on air quality. When choosing a filter, pay particular attention to the required airflow and duct diameter. Most filters are placed directly in the grow space; the exception is inline carbon filters, which can also be placed outside it.

Carbon filters contain a fine, granulated form of carbon called "activated carbon", which is produced using a special process. Each grain of activated carbon has a highly porous surface, giving it an enormous coverage area in relation to its size. This carbon can clean the air and remove odours that pass through it. It does this by attracting and then trapping impurities and aromatic substances on its surface.

The first criterion when choosing a carbon filter is its content of high-quality activated carbon. The amount of carbon directly affects how effectively odours and impurities are filtered from the air. PRO-ECO products excel in this respect. There are different types of carbon with varying porosity – the more pores, the better the adsorption properties.

Filters are also categorised by the type of activated carbon:

• Pellets are small cylinders with a diameter of 2-6 mm that absorb air containing odours only through the end of each pellet. Proven filters using this high-quality type of carbon are made by companies such as Prima Klima.
• Granules are chopped pieces of carbon (1-5 mm). They absorb air containing odours across their entire surface. As a result, compared with pellets, they offer a significantly greater air capacity at the same weight, or the same capacity at a lower weight. This type of filter is made, for example, by PRO-ECO using high-quality carbon originating from Australia.

If the manufacturer does not state the weight of the carbon, it can be estimated from the filter’s total weight. It is important to allow for differences in the materials used to make the filter casing. The casing is often made of steel, which is durable but not particularly light (CAN-Filters, Prima Klima). Aluminium housings are also used (PRO-ECO). Aluminium is noticeably lighter than steel, so at the same weight, aluminium housings contain a much higher proportion of carbon.

The thickness of the carbon layer directly affects the filter’s lifespan. The simple rule is: the thicker the layer, the longer the lifespan. An excellent example is Prima Klima, which makes odour filters in the ECO range (more affordable and thinner) and the Industry range (thicker layer, higher price and significantly longer lifespan). The same principle applies to the CAN-Filters brand and its CAN-Original, CAN-Lite and CAN-Special ranges.

However, it is worth noting that the clock starts ticking for every filter as soon as it is first connected. No matter how hard you try, no filter lasts forever. Dust pollution or increased humidity can also shorten its lifespan.

TIP: A non-woven pre-filter protects the filter itself from becoming clogged with dust and larger particles. A clean pre-filter extends the lifespan of a carbon filter – it can easily be shaken out, vacuumed or simply put in the washing machine.

You can’t go wrong with any of the filters above, but if you would still like expert advice, we’re here to help at our familiar address: info@higarden.eu.