For Philips FC9323 PowerPro Compact Hepa Filter Set + 4 Pieces Sponge (FC 8630/01,FC 8631/01,FC 8638,FC 8517) and Other Models - AliExpress
Amazon.com: HEPA Filters Compatible with Philips Power Pro Compact FC9331/09 FC9332/09 FC8010/01 Vacuum Cleaner Parts Foam Filter (Color : 1) : Industrial & Scientific
Amazon.com: Filter Compatible with Philips FC8010/01 FC9331/09 FC9332/09 Power Pro Compact Vacuum Cleaner Parts FC8010 Motor Foam Filter (Color : C) : Industrial & Scientific