AP303 AP304 Replacement Filters, Compatible with and Air Purifier, HEPA Filter with 3 Stage Filtration, 4 Pack (Standard-White)

Compatible with AP303/304 and AP303 AP304 Air Purifiers 3-Stage Filtration System: Fine Mesh Pre-Filter, HEPA Filter, and Activated Carbon Filter Adsorbs 99.97% of Particles as Small as 0.3 Microns Easy Installation with Filter Indicator Light Designed for Large Rooms with Dual-Sided Air Intake System