The CarboAir Pre-Filter protects your Carbon Filter from dirt, dust and airborne particles, therefore preventing your carbon filter from becoming blocked with particles and prolonging its life.
When these premium pre-filter socks look dirty, they need to be changed.
They are ultra-efficient at removing dust particles and being thicker but less dense than some pre-filters mean less restriction of airflow compared to our competitors.
The life of the pre-filter depends on your environment; they can last months or weeks depending on the volume of particles they are removing from the air.