A fluid delivery system includes an applicator having gradient foam where the gradient foam includes a fluid and the applicator has an applicator surface area open to the environment such that the fluid is passively dispensed onto a surface independent of gravity through the applicator surface area. The gradient foam may be encompassed by a holder. A fluid reservoir in the applicator holder is used to replenish fluid. A cap covers the gradient foam to prevent the foam drying out. The types of surfaces that the fluid delivery system may be applied to can be hard or soft, such as wood or skin and hence, the fluid delivery system may be used for many applications in the home, health/medicine, beauty, feminine, baby, personal, fabric, pet and food areas.