C3500 and C3500 WIFI Air Purifier Original Replacement Filter Set, 1 Ture HEPA Filter and 1 Activated Carbon Filter (1 Pack-2 Filters)

Official LUFTRUM Replacement Filter: Designed specifically for the LUFTRUM C3500 air purifier to ensure optimal performance. For the best results and lifespan, always use the official LUFTRUM C3500 replacement filter. | Easy Replacement Process:Step 1: Pull open the front cover and remove the old filterStep 2: Remove the plastic bag from the new filter before installationStep 3: Insert the new filter, ensuring the high-efficiency particulate filter faces outwardStep 4: Press and hold both the speed and sleep buttons for 5 seconds to reset. | Extended Lifespan & Cost-Effectiveness: LUFTRUM filters provide 6-9 months of continuous, high-quality air purification, reducing the frequency of filter changes and saving you money while creating a cleaner, healthier home environment. | Excellent Customer Service: If you have any questions, feel free to contact us. The LUFTRUM professional support team is ready to assist you.