Another Azzuro original. Our compact Combination System that combines the best use of Biology and Activated Carbon to deodorize small air flows (up to 750cmf/1.275m3/h). Specially designed for limited space locations that need reliable odor removal. PURETTA has an initial biological stage in which most of the hazardous components are oxidized and them flow through an activated carbon bed to purify the outgoing air completely. The carbon bed life and efficiency are greatly extended by this small system thanks to the use of biology. The economics are simple – the reduced number of carbon replacements lower the operation cost by x-factor. This little, tough Systems is about 6.5ft/2m in diameter and 6.5ft/2m high.