Nispira Puro 400 HEPA Replacement Filter Compatible with Puroair 400 Air Purifier, 3-Stage Filtration with Activated Carbon Filter, 3 Pack

["Designed for Puro 400 – Replacement filter specifically compatible with Puro 400 air purifier models, offering a secure and reliable fit for routine maintenance and replacement needs.","True HEPA Construction – Built with True HEPA material to help manage fine airborne particles commonly found in indoor environments.","Activated Carbon Layer Included – Integrated activated carbon filter supports the reduction of everyday household odors and unwanted gases from indoor air.","3-Stage Filtration Structure – Features a three-stage filtration design that balances airflow performance with consistent filtration support during normal operation.","Precise Dimensions – Measures 12 inches x 16.5 inches x 2.2 inches, manufactured with accurate sizing to support proper installation and dependable use.","Stable Airflow Performance – Designed to maintain steady airflow while supporting the normal operation of your air purifier during daily use."]