Curve Reusable Commuter Filters - Pack of 5 (Free Size)

These O2 Curve electrostatic filters are charged with pockets of both negative and positive ions, which attract, trap and neutralize small particles. The highly effective N95 filter traps pollutants as well as bacteria and diseases. It efficiently filter particles at 0.1 microns and larger. The filter can last up to 2 weeks.