Black PU foam Npwt Vac kit uses black polyurethane foam to treat wounds. By applying negative pressure to the wound bed, which helps to minimise oedema and encourage blood flow to the area, negative pressure wound therapy is a medical procedure used to enhance wound healing. In order to assist produce a moist environment for wound healing, the black PU foam is utilised as a wound filler and functions as a sponge to collect any extra fluid or exudate from the wound bed. A vacuum pump is included with the black PU foam Npwt Vac kit, which is linked to the foam dressing by tubing.