[narrator]

So how are you guys and the rest of the industry going to manage the possible toxicity of carbon nanotubes?[1] It seems they get into people's lungs and then they never leave and cause mechanical damage much like asbestos presumably leading to difficult to treat cancers. Are you going to wait for these things to be in just about everything and then spend the next 50 years getting sued?

[1]https://www.scientificamerican.com/article/carbon-nanotube-d...

[SaratogaEnergy]

only certain types of carbon nanotubes that have a thick and rigid structure have asbestos-like qualities. These are no longer used outside of Asia. The thinner, flexible variety similar to the ones we make do not share these qualities an do not penetrate cell tissue. Similar to carbon black, which is a widely used nano-material in car tires. Carbon nanotubes are also sold in solution and in dispersion so they cannot easily become air born.