เครื่องถูกปิดผนึกอย่างแน่นหนาเพื่อกักเก็บสารมลพิษเอาไว้ Adjustability: We Only picked air purifiers with no less than 3 adjustable velocity degrees. Air purifiers might be loud at their optimum speed — owning reduce, quieter pace choices, particularly in bedrooms, is crucial, depending on particular working experience. Corbat endorses finding air purifiers analyzed and Licensed by AHAM Successfully Submitted (Awaiting Approval)