Covid-19: the inventor hoping to bring air hoods to frontline medics
百毒不侵的透明頭罩

Lockdown has forced professor Mike Bradley to work out of his garden shed
專門研究微粒的麥克·布拉德利教授設計了一款據稱可以阻止所有通過空氣傳播的病毒的頭罩，他解釋了這款頭罩的運作原理。