Byseacore H-HF450-VP Replacement Filter Compatible with Hunter HP450 HP450UV Cylindrical Tower Air Purifier, 3-Stage Filtration with 4 Counts Activated Carbon Pre-Filters

["Compatibility: Our replacement filter set is compatible with Hunter Hunter HP450UV air purifier models HP450UV-ASL HP450UV-BRS HP450UV-GRS HP450UV-WHG","Multistage filtration filter: 3-stage filter replacement with activated carbon filter, can deal with unwanted smell in indoor air","H-HF450-VP filter value pack: 1 count efficient filter and 4 counts pre-filters","Please replace the hp450 filter once every 6-12 months and pre-filter 1-3 months or more often depending on the usage","Easy to replace and disposable, no tools required. Please replace regularly to keep your machine clean Note: please remove the new filter from the plastic bag before placing it into the machine"]