Portable Ozonizer and Ionizer Air Purifier... our purifier can release of Ozone and millions negative ions, killing more than 99% of the smoke, pollen from the air, Dust and other harmful particles, low power consumption and high energy efficiency. • Ideal option for Asthmatic and Allergic persons • 【Purification】Dual action, Ozone and Built-in negative ion generator, release millions negative ions, purification fully meets daily requirements. Protect you from yellow dust, es, fine dust and odor in daily life. The Ozone and Negative Ions gene