With Regards to sheer air purifying electric power, the Alen is prime with our testers. You can expect to spend a top quality for that effectiveness, and it's a beast of a unit, nevertheless the Alen would be the scarce device that can seize contaminants down to 0. กำจัดฟอร์มาลดีไฮด์และมลพิษ พร้อมกระจายอากาศสะอาดทั่วห้อง waiting for link from Social Network Posts (16)