Comedes replacement filter (HEPA), can be used instead of Philips Nan
AIRPRO HEPA H13 REPLACEMENT FILTER FOR AIR PURIFIER
Amazon.com: FY1413/40 Active Carbon & FY1410/40 HEPA Replacement Filter Set Compatible with Phil-lips Air Purifier Series 1000 1000i, Replace AC1214 AC1215 AC1217 AC2729 : Home & Kitchen