Purchase of consumables

Some negative ion generators require you to purchase filters or other consumables on a regular basis. You should know the expenditures before you purchase the generator. Purchase of consumables Purchase of consumables - (Extract from "Pay attention to specifications") Specification item Example Importance Purchase of consumables Not needed Middle Some negative ion generators require you to purchase filters or other consumables on a regular basis. You should know the expenditures before you purchase the generator because you have to continue to pay as long as you use it. The industry's highest performance negative ion generator [Users testimonials] Good sleep 74%, Alleviation of migraine 85%, Less shoulder pain 66%, Feel refreshed 76%