Perfect Compatibility: Our HEPA filter replacement R is fully compatible with Honeywell Air Purifier HPA100/200/300 and 5000 Series. And the activated carbon Pre-Filter A is compatible with Honeywell HPA300 series air purifier 2-stage filter system: Activated Carbon filter and H13 Hepa Filter. The activated carbon filter physically absorbs unwanted odors and fumes, such as cooking smells, smoke. HEPA Filter capture 99.97% particles as small as 0.1 microns in size Our HPA300 HEPA filter replacement with longer-lasting filtration and high durability includes 3 HEPA filter replacement R and 4 Filter carbon pre-cut filter A for yearly supply, perfectly fits HPA300 series air purifier HEPA Filter R Dimensions: 10.2 L x 6.5 W x 1.6 Th. Activated Carbon Prefilter A Dimensions: 14.2 L x 17.2 W x 0.2 Th Our HPA300 filter replacement is perfect for home and office area with smokers, pets and more. Regular replacement of Pre-Filter A and HEPA Filter R will help your air purifier maintain 99.97% filtration efficiency, resulting in cleaner and fresher air Brand Name Musslan Unit Count 7.0 Count MERV Rating 13 Filter Shape Rectangular Manufacturer Musslan Model Number R3(3+4) Material Type HEPA 13 / MERV 17 material and activated carbon Product Grade new Item Type Name R3(3+4) Number of Items 7 Compatible Devices For Honeywell HPA300 Series air purifiers models HA300, HPA300, HPA300VP, HPA304, HPA3300, HPA5300 & HPA8350 air purifiers Common Applications Appliances Included Components 3 x HEPA R Filter and 4 x Pre-Cut Activated Carbon Filter Filter Mounting Type Slide In Warranty Description 6 months manufacturer Air Filter Construction Pleated Compatible Air Purifier Models Honeywell HA300, Honeywell HPA300, Honeywell HPA304, Honeywell HPA3300, Honeywell HPA5300, Honeywell HPA8350 Item Dimensions L x W x Thickness 11.4 L x 7.5 W x 7.5 Th EU Spare Part Availability Duration 1 Years