OEM Austin Air Replacement Pre-filter for all Junior size Healthmate and Healthmate Plus air purifiers. This replacement Austin Air pre-filter is the first stage of filtration for any Austin Air Jr. air purifier. The pre-filter is a non-woven polyester barrier that traps large particles like hair and dust along with some smaller airborne particles. This helps extend the life of the HEPA filter. This filter should be vacuumed blown out or rinsed and air dried periodically to maintain proper air flow and remove debris.
We recommend replacing your pre-filter every 2 years. Order the white replacement pre-filter if you have a White or Sandstone unit. Order the black pre-filter if you have a Black or Midnight Blue unit.
Replacement instructions: Unplug your air cleaner and turn it upside down on carpet or a towel. Remove the screws holding the bottom plate on and remove the plate. Remove the old filter and pre-filter from the unit. Vacuum the outside of the main air filter and inside the air cleaner. Wrap the new pre-filter around the air filter and place into the unit. Replace the bottom plate and put the screws back.