The Stadler Form Oskar / Karl filter (2 units) includes 2 replacement filter cassettes for your Oskar or Karl humidifier. The antibacterial function of the filter prevents the growth of bacteria in the water. Replace the filter every 2 to 3 months to keep the air in your home clean.
The Stadler Form Oskar / Karl filter (2 units) includes 2 replacement filter cassettes for your Oskar or Karl humidifier. The antibacterial function of the filter prevents the growth of bacteria in the water. Replace the filter every 2 to 3 months to keep the air in your home clean.