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• HEPA are introduced to get rid of  tiny dust, smog.
• Apply the negative ion to purify air and keep healthy.
• Apply photocatalyst technology to   break up harmful gas.
• Adopt the ultraviolet ray to kill  bacterium.
• Adopt active carbon as a adsorbent to deodorize.
• Infrared ray robot.
• Purifier with Fragrance (optional).