View on LOZ Suggested Retail: $39.39. PUREBURG 1-Pack Replacement filter Compatible with Blueair Blue Pure 211+ / 211 and MAX. This filter set is a 1-Pack. Compatible with Blueair Blue Pure Blue Pure 211+ / 211 and MAX. Filter can remove large and airborne particles, including dust, pet dander, common pollutants, and fabric fibers. This particle filter with an inner activated carbon layer reduces tobacco smoke, pollen, dust, pet dander, household odor and VOCs.. 7 CALENDAR DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE IS ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.