Keep your Austin Air purifier performing at its peak with the Austin Air "it" Replacement Pre-Filter. Designed to capture larger airborne particles such as dust, hair, and lint, this pre-filter acts as the first line of defense in your air purification system. By removing these particles before they reach the main HEPA filter, it extends the life of your primary filter and ensures your air purifier runs efficiently. Easy to replace and install, this pre-filter helps maintain optimal air quality and reduces the need for frequent filter changes, making it an essential addition to your air care routine.