Global Air Supplies was the first and only horticultural wholesaler to specialise in ventilation products. Having already developed the Rhino brand, which became the filter of choice for growers, we wanted to develop an even more advanced filter as an evolution from Rhino. Specially sourced and manufactured in Europe, the CarboAir filter was introduced to the market in 2016. Just 2 years later it was voted the UK’s favourite filter in the Great Hydro Survey and is now the best-selling filter in the UK.