The Use of Negative Pressure Wound Therapy in Nursing Homes INPWT S1 Negative Pressure Wound Therapy System Devices Wound Vac Machine And Npwt Dressing Kits Alisa 3M V.A.C. Peel and Place Dressing Kit Vacuum Therapy We Care * We Heal VAC Dressing (Negative Pressure Wound Therapy NPWT) An advanced wound care technique that uses controlled negative pressure (50 to 125 mmHg) to remove exudate, reduce infection, and promote healthy granulation tissue.