Notice the word 'eliminate'. Nobody could claim something would 'eliminate exposure or risk of contracting any disease' and not get sued immediately by someone

Notice the word 'eliminate'. Nobody could claim something would 'eliminate exposure or risk of contracting any disease' and not get sued immediately by someone who got sick. In Wuhan, something like 10,000 doctors were sent in to treat the thousands in field hospitals. None of them caught covid during that time. N95s work, if worn properly (and pass a fit test, even a crude one).