C3500 Replacement Filter Compatible with LUFTRUM C3500 and C3500 WiFi Air Purifier, H13 True HEPA Filtration Activated Carbon Filter (4 Pack-4 Filters)

Compatibility: Specifically designed for LUFTRUM C3500 air purifier, Please confirm your model before purchasing. | Filter Technology: Features True HEPA filtration captures particles down to 0.3 microns and activated carbon for odor reduction. | Replacement Cycle: Four (4) C3500 air filters are included. For optimal performance, we recommend replacing your air filter every 6-9 months. | Filter Replacement Instructions: To replace the filter, first open the front cover and remove the old one. Then, take the new filter out of its plastic bag and insert it with the high-efficiency particulate side facing outward. Finally, press and hold the Speed and Sleep buttons for 5 seconds to reset the system. | If you have any questions about our replacement filters, feel free to contact our customer service team. We're here to ensure a prompt solution to your needs