DR AIR N95 Anti-Pollution Face Mask With Breathing Valve For CHILDREN. It blocks PM2.5 dust, Haze, bacteria, Influenza virus, etc  filtration  upto 95 % .  Variety of Innovative technologies and features are used to help you meet your respiratory protection and comfort needs. DR AIR valved masks uses cool flow exhalation technology, which allows masks to be used for long hours. The soft inner material provides added comfort while the adjustable nose clip provides a custom fit . Available in attractive colour and designer patterns.