เครื่องถูกปิดผนึกอย่างแน่นหนาเพื่อกักเก็บสารมลพิษเอาไว้ Adjustability: We Only picked air purifiers with at least a few adjustable velocity levels. Air purifiers is usually loud at their best speed — owning lower, quieter pace selections, particularly in bedrooms, is essential, determined by particular experience. The dearth of oversight is a concern — you're counting on waiting for link from Social Network Posts (16)