A four-layer filter inside the Atmotube MASK forms a physical barrier between your face and polluted air and filters out up to 95% of airborne particles that are at least 0.3 microns in diameter. Most airborne particles are caught by an electric-charged layer within the filter, so it is important to replace it as soon as it gets dirty. On average, each filter lasts up to one week of regular use or up to 30 hours of use. You can always order additional filters for your Atmotube MASK here.
Since any gap in the seal makes a mask less useful no matter how effective the filter is, we’ve also added a hypoallergenic medical silicone bridge near the nose area. It guarantees a minimal air leakage and a snug fit no matter what shape your face is.