Asbestos is dangerous when it goes in, and when it comes out. The pipes in my house are insulated with Asbestos, but as long as I don't go break the insulation

Asbestos is dangerous when it goes in, and when it comes out. The pipes in my house are insulated with Asbestos, but as long as I don't go break the insulation apart, I'll be fine. In many cases, Graphene or nanotubes will be used in a fixed form - they (hopefully) won't be used in aerosols. In something like an electronic component, the fullerenes would be locked in a plastic cage. You've probably inhaled graphene, nanotubes, and bucky balls if you have been around a bonfire.