ポスト
"N95 and KN95 masks Up-to-date vaccinations HEPA air filtration Rapid tests before gathering Good ventilation (carbon dioxide <800 parts per million) Attention to wastewater levels of COVID-19"
メニューを開く"N95 and KN95 masks Up-to-date vaccinations HEPA air filtration Rapid tests before gathering Good ventilation (carbon dioxide <800 parts per million) Attention to wastewater levels of COVID-19"
メニューを開く