OYEkids mask is an effective anti-pollution mask – an advanced respiratory device, which protects your little ones from harmful airborne particles, environmental toxins, pollen, atmospheric pollutants and harmful gases. Our filters are equipped with Activated Carbon Fabric (ACF), and with a filter capacity up to PM 2.5 ultra fine particles. Do you live in a polluted city? Do your kids have pollen allergy? Guard them with our lab tested OYE kids anti pollution mask.