【PERFECT FIT】411 Series AllergenBlock Filter is ONLY Compatible with Blue Pure 411, 411+, 411 Auto air purifier
【NOTE】Not compatible with Blueair Blue Pure 411i Max/411a Max and other models
【AllergenBlock Design】Effectively traps more than 90% of AllergenBlock particles. In addition to efficient performance, it can also save up to 10% of automatic delivery filters and extend machine life
【True Air Filter】Our 411 Series replacement filter made of true air filter and a high-efficiency activated carbon filter for good clean filtration and performance
【OPTIMAL PERFORMANCE MAINTENANCE】For the ongoing top performance of your Blue Pure 411 Series Air Puri-fier, based on actual usage the filter should be replaced within 9 months
model number: 2 Pack 411 Series AllergenBlock Filters
