If Your air good quality is bad and you don’t have an air purifier, an HVAC filter taped to some box fan is better than practically nothing. ขนาดเล็กกะทัดรัดสามารถวางไว้ได้หลายที่ หลายมุม The Blue Pure 211+ aced our assessments, and because it might move exceptionally substantial volumes of air, it satisfies big spaces. Successfully Submitted (Awaiting Approval)