Review on XDX Emissions-Free Sustainable Pollution Solutions by Derrick Lowell

I have great confidence in them when placed in the filter pocket of a quality sheet mask. Make sure you position them to cover your nose and mouth and tighten the nose clip and ear straps; then you can safely travel through airports and airplanes. During the pandemic (pre-vaccination and post-vaccination) I have flown multiple flights between US coasts and one transatlantic flight and have never contracted the virus. They are more breathable in flight than the KN-95 mask, which I find limiting in thin air at 35,000ft. However, the protection of the PM 2.5 filter is slightly lower than that of the KN-95, so make an informed choice. For me they are a great combination of strong protection and long-term comfort.