เครื่องถูกปิดผนึกอย่างแน่นหนาเพื่อกักเก็บสารมลพิษเอาไว้ Adjustability: We Only picked air purifiers with a minimum of a few adjustable speed ranges. Air purifiers could be loud at their highest velocity — obtaining reduced, quieter velocity solutions, especially in bedrooms, is crucial, dependant on personalized expertise. CADR (clean up air supply score) is undoubtedly an indicator Successfully Submitted (Awaiting Approval)