Replacement Filter for Bissell Air400, HEPA Activated Carbon 2521 and 2520

Perfect Compatibility: The Air400 HEPA filter replacement fit for Bissell Air 400 Air Puri-fier, compared to part 2521 true HEPA filter and 2520 carbon filter | 3-Stage-Filtration: The function for Bissell Air 400 replacement filter combine Pre-Filter, HEPA Filter and Activated Carbon Filter together, not only help to absorb airborne particles but also eliminate unwanted odors | Efficiency Performance: Post Filter use True HEPA technology, attaches 99.97% of airborne particles down to 0.3 microns. Activated Carbon Filter absorbs household bad smell from pets, cooking, and smoking. Pre-filter traps larger air contaminants like pet hair, dust balls | Valuable Pack: The package for Bissell my air filter replacement includes 1 H13 Ture HEPA Filter, 1 Activated Carbon Filter and 1 fine Pre-Filter. Filter made of FSC-Certified paper | Easy Installation and Replacement: The filter is easy to install, no tools required, and for best performance, please replace the filters in every 3-4 months