N95 respirators
... that the melt-blowing technology used to create N95 respirators was previously used to produce ready-made ribbon bows and bra cups?
... that the <a href="./Melt_blowing" id="mwC3Y" rel="mw:WikiLink" title="Melt blowing">melt-blowing</a> technology used to create <b id="mwC3c"><a class="mw-redirect" href="./N95_mask" id="mwC3g" rel="mw:WikiLink" title="N95 mask">N95 respirators</a></b> was previously used to produce ready-made ribbon bows and bra cups?