เครื่องถูกปิดผนึกอย่างแน่นหนาเพื่อกักเก็บสารมลพิษเอาไว้ Normally, Air purifier companies will suggest the CADR for contaminants like tobacco smoke, dust or pollen. For instance, a pollen CADR of one hundred twenty five implies that the air purifier can take away pollen and provide a hundred twenty five cubic toes of cleanse air for every minute. https://www.mannature.com/products/detail/airpurifier