Japan JAIRA Level 5 Ion Certification Protect yourself in the air 24 hours a day Protect anytime, anywhere, and effectively purify the air within 1 meter! Avoid pollen, dust and viruses Efficacy: Continuously produce 1 million negative ions per second Removal of carcinogenic suspended particulates PM2.5. Removal rate of 99.9% Removes deadly pollution toxicants, and the removal rate of formaldehyde..