Taipei Tech Mask uses unique nanotechnology PTFE filter, so the filtration efficiency of our mask is near 99.7%, the quality higher than N95. The bacterial filtration efficiency is 99.9 %, which will really protect your body. Especially, it provides professional protection for medical personnel in the hospital, nursing homes and so on, because they have to wear surgical masks for a long time. The idea of circular economy in resource recycling can reduce the demand for petrochemical raw materials and is expected to be presentable for the recovery of industrial waste recycling of PET master batch into high value added air filtration material.