Rhysley Disposable 3-layers Child Face Mask is perfect to keep your little ones safe while strolling outdoors. This mask is specially designed for the younger ones with that tiny nose and cute little face. 3 ply extra-soft skin-friendly microfiber material which makes this half face mask comfortable and provides excellent breathability, these latex-free, fluid-resistant, perfect fitting, and high breathable 3 ply face mask has high filtration capacity which keeps the face, mouth covered and protected from germs, chemicals, dust particles, fluids, etc. These face masks feature elastic ear loops is easy to wear and no pressure to the ears which enable to use them for a long period, the built-in nose piece molds to ensure fits seamlessly into your kids face These face masks have> 99% bacteria filtration efficiency ASTM Face Mask Performance Level Selecting the appropriate mask for a particular procedure is a critical component of your Personal Protective Equipment (PPE>99) protocol. Although may look similar, each mask has notable differences affecting the performance and level of fluid resistance and particle filtration. Understanding the ASTM performance level of each face mask can help make the selection process easier and ensure your mask will provide appropriate protection to minimize the spread of potentially infectious diseases. ASTM F2100-11 Standards: ASTM Level 1 Mask | ASTM Level 2 Mask | ASTM Level 3 Mask