3.1. Super Air Purifying Systemwith SUPER alleru-buster3.1.1. Supersonic Air Purifying System• The Supersonic Air Purifying System incorporated in theindoor unit generates supersonic waves.• The system works in combination with the filter to collectsdust and dirt in the air for faster, more efficient airpurification.3.1.2. SUPER alleru-buster filter• The SUPER alleru-buster filter combines three effects inone — anti-allergen, anti-virus, anti-bacteria protection — tokeep room air clean and healthful.3.2. Ion Freshener• Around 20,000 negative ions/cc are generated to freshenthe room. It’s like being next to a waterfall or in a forest.3.3. Super Quiet• The indoor unit operates at a whisper-quiet 26dB. You canalso press the Quiet Mode button to lower the operatingnoise 3 dB. We’ve reduced the noise of the outdoor unit,too, with the e-scroll Compressor and 2-Wing Fan. You canrun the air conditioner at night and enjoy a deeper, morecomfortable sleep, and without bothering your neighbours.3.4. Powerful Heating And Top-class Energy Effciency3 Features9CS-E9EKEB CU-E9EKEB / CS-E12EKEB CU-E12EKEB