tk1tez7777 wrote:
Several Pentagon contractor firms are working on a new class of ventilator masks, not just for emergency and cleanup workers but to prepare foroutbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal, engineered fibers that are starting to be used in electronics, food, medicine, and more.
(A) outbreaks of dangerous viruses and still another growing threat: the accidental releases of nanoparticles, which are the infinitesimal,
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