HEPA (High Efficiency Particulate Air or High Efficiency Particulate Absorbing) filters are classified as fine particle filters.
In the vacuum cleaners with an aqua filter system, HEPA filters are responsible for filtering out the finest dust particles that have not become wet and have not settled in the water filter tank.
THOMAS HEPA filters are made of high-quality, washable and long-life materials.
The manufacturer recommends to change the HEPA filter once every six months, but the exact life time depends on the operating conditions: how dirty it is, frequency of cleaning, proper use, etc.
