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 Hydrophilic Foam Wound Dressing, Non Adhesive without Border, 4" X 4" Mountainside Medical RTD Foam Dressing with Silver, 2 x 2 Inch, Square, Blue, 2 x 2 in, 1 Count, #76020218 Hydrofera Blue CLASSIC WoundSource