The Dr. Mfyan KN95 Three-Dimensional Protective Mask Particulate Respirator can effectively defend various particles in the air includes PM2.5 dust and bacteria / virus / Coronavirus Disease 2019 (COVID-19). The elastic ear-loops wears easily and comfortable. It is with adjustable nose bar helps the mask close to face when wearing. The Respirator is made of electrostatic meltblown cloth, pp spunbond non-woven cloth, electrostatic filter cotton. Adopting KN95 grade anti- particulate matter filtering technology and antibacterial environmental protection fabric, effectively filteringand protecting from PM2.5 air particulate matter and bacteria. It is suitable for protection against harmful particles such as dust, PM2.5 haze particles, influenza bacteria, droplets and so on.