Nu-Car fragrance spray. Use Refresher liquid spray in your car. Give your older car that new smell again when it looses that unique smell. Can also be sprayed on vacuum cleaner bags and air filters. Use it to freshen potpourri. Add to water filtration vacuums and humidifier reservoirs. Great for use in home, office, auto, RV, pet Great for Filter Queen's vacuums. This should be sprayed onto the scent pad of the Filter Queen. Scent pad is located under the dome cap. TIP: For easy changing to a different fragrance purchase more scent pads and exchange them out of the Filter Queen. Store into a zip lock bag, label it for future use. Also if you are using a Medipure or Enviropure filter you should remove it. Otherwise you will defeat the efficiency of scenting your room. SAFETY: When using in warmers (candles or electric) do not leave unattended. Warmer could go dry and be a fire hazard.