BROWNELL Breather and Dryers are filled with Envirogel Desiccant, which changes colour from orange to green as it becomes saturated with water vapour.
Brownell units are designed to enable the easy and quick replacement of the desiccant charge. When the colour change from orange to green has reached the level indicated on the label, charge should be replaced.
We also offer unit specific refill packs, please contact us for more information on these.