You can get the awesome 3M Aura used in hospitals for $2.20. These are great: https://www.ebay.com/itm/224332977653?_trkparms=amclksrc%3DITM%26aid%3D111001%26a

You can get the awesome 3M Aura used in hospitals for $2.20. These are great: https://www.ebay.com/itm/224332977653?_trkparms=amclksrc%3DITM%26aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D25b80a4206ea46d2a33a660fc55772f2%26pid%3D100675%26rk%3D1%26rkt%3D15%26sd%3D224332977653%26itm%3D224332977653%26pmt%3D1%26noa%3D1%26pg%3D2380057%26brand%3D3M&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3Acebb5beb-0ce2-11ec-82c9-06be2b0c2d41%7Cparentrq%3Aacdeb31517b0acf38228edb2fffc414c%7Ciid%3A1 https://www.ebay.com/itm/224332977653?_trkparms=amclksrc%3DI...