Amazon.com: 2 pack HEPA Filter FY2422/30 and 2 pack Filter FY2420/30 Alternative Replacement for Philips AC2889,AC2887,AC2882,AC3829 Air Purifier Filters : Home & Kitchen
HEPA Air Filter for Philips CP0616 FC9728 FC9730 FC9731 FC9732 FC9733 FC9734 FC9735 vacuum cleaner - AliExpress
Replacement HEPA Filter Compatible with Philips 800 Series AC0820 AC0830 Air Purifier FY0194 FY0293 from China manufacturer - Nanjing Blue Sky Filter Co.,Ltd.