3500 Replacement Filters Compatible with Air Doctor 3000 Serie Air Purifier, fits Model 3000 3500 3500i, 1 Efficiency Filter + 2 VOCs Filter + 4 Pre-Filters, Compare to ADF3001 ADF3002 ADF3003

: This 3500 Replacement Filters Set is expertly designed for compatible with 3000, 3000M, 3500, and 3500i air purifier, compare to the part No. ADF3001, ADF3002, ADF3003 and ADF3010. NOTE: This is not OEM product,Any use of the brand name or model designation is made solely for purposes of demonstrating compatibility | : Our 3500 replacement filter for 3000, 3000M, 3500, and 3500i air purifier presents an excellent value pacakge, includes 1 Efficiency Filter, 2 Activated Carbon Filter, and 4 Pre-Filters | : Enjoy exceptional fresh air with our 3-stage filtration system -- 3000 filter replacement | : The 3500 filter works alongside the new fine sponge pre-filter and activated carbon filter | : We recommend replacing the activated carbon every 6 months and the main every 12 months for optimal performance (depending on your usage)