Philips Original Replacement Filter for Air Purifier 4000i Series, AC3854, AC3858, AC4236, HEPA NanoProtect + Active Carbon, 36 Months Lifetime (FY4440/30)

ORIGINAL PHILIPS FILTER: This original Philips filter is designed for a perfect fit with your device. For optimal performance, always use the genuine Philips filter. COMPATIBLE WITH AIR PURIFIER 1000i and 2000i Series: Replacement air purification filter for Philips air purifier models AC3854, AC3858, and AC4236. You can find your air purifier model on the bottom of the device. UP TO 36 MONTHS OF USAGE: This purification filter provides consistent protection and guarantees optimal filtration for up to 36 months¹. 3-LAYER HEPA FILTRATION: With pre-filter, HEPA NanoProtect and activated carbon captures 99.97% of particles, as small as 0.003 microns - to protect against pollutants, viruses, allergens, bacteria, and odors ². CONNECT WITH THE AIR+ APP: Connect your device to the Air+ app to monitor your filter status.