Filter for the Oskar and Karl evaporators from Stadler Form. The filter cartridges should be replaced every two months to ensure antibacterial treatment against bacterial growth in the water. They provide optimal humidification performance for the evaporators (Oskar little, Oskar, Oskar big, Karl, and Karl big).

Compatible with all Oskar and Karl models: Oskar little, Oskar, Oskar big, Karl, and Karl big.

The antibacterial treatment ensures that the material remains clean and hygienic.

Very high efficiency, made from plant and textile fibers.