2-Pack Replacement Blueair 303 Air Purifier Filter - Compatible Blueair 200 & 300 Air Filter
$18.31
Replacement Blueair 303 Humidifier Filter; Quantity: 2 Replaces Blueair 200 & 300 Air Filter Gradient filter design maximizes airflow while removing harmful particles to 0.1 microns in size For best results; change air filter at least once per season or more often depending on air quality and use. Essential for Allergy Sufferers.