Suggested Retail: $29.99. PUREBURG 1804 Replacement True HEPA Filters Compatible with Westinghouse Portable Air Purifier 6-Pack - This is a pack of 6 PUREBURG high-efficiency True Replacement HEPA Filters compatible with Westinghouse Portable Air Purifier 1804. These filters can be changed in minutes without the need for any tools. They effectively remove large and airborne particles, including dust and common pollutants. H13 True HEPA captures 99.97% of airborne dusts PM2.5 down to 0.3 microns in size. Brand: PUREBURG Model: 1804-Replacement -- LOT STICKER: BB-BOX-BOXBB001653-ITEM-5987884b___LPNRRHG6691876 PUREBURG Replacement True HEPA Filters Compatible with Westinghouse 1804 Portable Air Purifier,H13 Air Clean Dust PetHair home office,6Pack -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.