government surplus site (gcsurplus.ca) is giving out free stuff and will ship free upon request 2 boxes of respirators or 100 respirators

duck bill respirators.

https://www.gcsurplus.ca/mn-eng.cfm?snc=wfsav&sc=enc-bid&scn=526845&lcn=682165&lct=L&srchtype=&lci=&str=21&lotnf=1&frmsr=1&sf=ferm-clos&saleType=