30 Pack - Unity Mask Nano Filter

Cut Exclusively for the Unity Mask 2.0 Made in Korea by Dyetec One Time Use - Remove filters and discard in trash after 8 hours of use. PET (Polyethylene Terephthalate)(99%) PESU (Polyarylethersulfone)(1%) *More than 90% of filtration efficiency Tested with NaCl aerosol at inhalation flow rates of 95 liters/min and the particle size was 0.6 micro