My family lives on the fifth floor. Is there much toxic gas pollution in the garage on the second floor downstairs?

It shouldn't be too big Sources of toxic particulate matter in cities: First, automobile exhaust. The Puwei server for medical masks imported from the United States has good filterability, preventing both particles and droplets. The filtration efficiency is 99.8% for particles as small as 0. 1 micron, and 99.9% for bacteria or virus carriers as small as 0.3 micron (common in droplets). SecureFit patented technology is adopted to adapt to different face shapes and achieve a high degree of fit. For the health of you and your family, wear a mask when you go out. I wish you happiness and hope to adopt it.