Fluoride (F) contaminated ground water poses a serious public health concern to rural population with unaffordable purification technologies. Therefore, development of a cost-effective, portable, environment and user-friendly defluoridation technique is imperative. In the present study, we report on the development of a green and cost-effective method that utilizes Fe₃O₄ and Al₂O₃ nanoparticles (NPs) that were synthesized using jojoba defatted meal. These NPs were impregnated on to polyurethane foam (PUF) and made into tea infusion bags. The Al₂O₃ NPs-PUF displayed a higher water defluoridation capacity of 43.47 mg g⁻¹ of F as compared to 34.48 mg g⁻¹ of F with Fe₃O₄ NPs-PUF. The synthesized Al₂O₃-PUF infusion bags removed the F that was under the permissible limit of 1.5 mg L⁻¹. The sorption experiments were conducted to verify the effect of different parameters such as pH, contact time, size of PUF and initial F concentration. The different properties of adsorbent were characterized using a combination of FESEM, EDX, XRD and FTIR techniques, respectively. The calculated total cost per NPs-PUF pouch developed is as low as US $0.05, which makes the technology most suitable for rural communities. This paper will be beneficial for researchers working toward further improvement in water purification technologies.