[APPLICATION]: The filter replacement is compatible with Tineco A10/11 Hero, A10/11 Master, PURE ONE S12. (Please check your vacuum cleaner model before purchase) [PERFECT FILTER COMBINATION]: The package includes 4x pre-filters and 2x HEPA filters. Please replace or clean your filters regularly for optimal performance. We recommend replacing the pre-filter every 3-4 months, and the HEPA filter every 6 months. [GREAT FILTERING PERFORMANCE]: These filter replacements for Tineco cordless vacuum can highly effectively block most dust and debris, and effectively absorb pet hair, and other impurities as small as 0.3 microns, helping you to easily tackle deep cleaning. [FILTER MAINTENANCE ]: These replacement filters are able to be washed and reused. Allow the water to soak, then use a dedicated cleaning brush to simply clean the surface, and finally rinse with clean water and air-dry. [INSTALL]: Easy to replace and install for Tineco vacuum cleaner, card into place, no tools can be quickly and easily replaced on a daily basis.