¿Cuánto tiempo puedo usar el mismo respirador N95, KN95 o KF94?
Nunca intentes limpiar tu cubrebocas de alto rendimiento. Aunque parezca un tejido…
How Long You Can Wear Your N95, KN95 and KF94 Face Masks
I asked Dr. Marr for additional tips on how to take care…
Elizabeth Holmes Points Fingers at Others and Says She Was a Believer
SAN JOSE, Calif. — Using charisma, poise and a smattering of scientific…
