Hydrofera Blue Foam Island Dressing with Border, 4" x 4 3 4". LA Medical VetBlue PU Foam Wound Dressing Hydrofera FarmVet Hydrofera Blue Ready Border Antibacterial Foam Dressing with Silicone Border, 6" x 8" HFLHBRB6080 ATCMedical Associated Medical Supplies. HYDROFERA BLUE Hydrofera Blue COMFORTCEL Interface Antibacterial Foam Dressing Hydrofera Blue's capillary action creates a balanced healing environment. Hydrofera has partnered with Aroa to provide the APPULSE Wound Care Protocol for Home Health Care, which explains to non clinical caregivers the simple