Features: Generating negative oxygen ion: Anion can activate the oxygen molecules in the air to better absorption for people then effectively prevent air-condition disease. Improve Lung Function: When breathing in more anions, the lung can absorb over 20% oxygen, and expel 15% more dioxide Promote metabolism: Activate various enzymes in human body, improving metabolism. Deterring sickness: optimize body functions, activate cell functions, and improve immunity system. Improve sleep quality: with the anion surrounding, people would be in high spirit, while improving the work efficiency and sleep quality. And it can be effective to abirritation. Disinfection: The anions are active that they can combine with the bacteria, changing their structure inside and kill bacteria. Smoke prevention and dust control: It can subside the particles in the air by neutralization of anion and dust particles. Protection: neutralizing the static produced by TV and computer, forming a protective layer to prevent the static. ItemSpec.modelsAF-230powerAC100/110 220/230 50/60modelmulti-layer filtering designModefast speedstandardquietair spee2.21.81.4standby power consumption100V- 0.6W 220V-1.2Wpower consumption362824noise level483832Motor speed800600480(Min. Efficiency) HEPA efficiency 99.8% ( air speed 5.3cm/s, 0.3um particle. )CADR165m³TVOC-removing rate of Active charcoal92%anionGenerator6.0KV discharging typeAmount1 meter foreward, more than 20,000 pieces/CCapplicable area m223-30