Self-Gard N95 Reusable Anti Pollution Cotton Mask is designed to provide high-level protection against very small particles, including bacteria, viruses, dust, pollen, and smoke. Here are the key features of this mask: Layered Filtration: The mask consists of five layers that work together to filter out harmful particles: Outer Layer: Spun Bond Non-Woven (60 GSM) 2nd Layer: Melt Blown Filter for Bacterial & Particle Control (50 GSM) 3rd Layer: Hygroscopic Cotton for Moisture & Droplet Control (60 GSM) 4th Layer: Melt Blown Filter for Bacterial & Particle Control (25 GSM) Inner Layer: Spun Bond Non-Woven (25 GSM) Reusable and Washable: The mask is reusable and can be washed by hand. Comfortable Fit: It has a regular fit and features soft elasticated ear loops for a comfortable and secure fit.