Hydrofera Blue TRANSFER, Antibacterial Foam Dressing, Non adhesive, 10 per Box, Polyurethane (PU) Foam, 2.5 x 2.5 Inch, 1 Box, #HBRT2525 Hydrofera Blue CLASSIC FOAM 4X4" Byram Healthcare Hydrofera Those who know, know there's no comparison. Hydrofera Blue provides antibacterial and non cytotoxic protection for faster wound healing and helps pull harmful bacteria laden slough, exudate, and debris away from the Hydrofera Blue Classic Foam Dressing, 4" X 4" Hydrofera Blue Transfer Antibacterial Foam Dressing, 2.5x 2.5 Inch Hydrofera Blue Classic HB2214 Antibacterial Foam Dressing, 2 X 2 Inch, Box of 10