According to current research, ordinary cotton masks and masks without filtration technology do not prevent viruses or germs from entering the body. Viruses and bacteria are hundreds of times smaller than the strands of cotton or synthetic thread in a homemade cloth or non-filter masks, enabling airborne particles to pass through directly. Their high-tech, paper-thin HALO Nano filters include a patented ‘nano-matrix’ that filters out almost all smoke, dust, pollutants, pollen, particles, and pathogens.