เครื่องถูกปิดผนึกอย่างแน่นหนาเพื่อกักเก็บสารมลพิษเอาไว้ Adjustability: We Only picked air purifiers with at the very least a few adjustable velocity stages. Air purifiers could be loud at their optimum velocity — acquiring lessen, quieter pace solutions, particularly in bedrooms, is very important, based upon individual practical experience. The Blue Pure 211+ aced our exams, waiting for link from Social Network Posts (11)