The Airvida may look like a sleek pair of headphones, but its actually a wearable air purifier designed to comfortably fit around a wearer’s neck. The device works by providing a high concentration of healthy negative ions that attract and attach to airborne pollutants such as dust and pollen. When the ions attach to these particles, they become too heavy and fall to the ground, away from the wearer. Best of all, they can quietly clean the air around you for up to 32 hours on one charge.