Microfiber EASY REPLACEMENT – These Homedics TotalClean Microfiber Replacement Pads are easy to use; Push oil tray to expose pad, discard old, place new pad in tray, add 5-7 drops of your favorite essential oil, and gently push tray back into slot until it clicks ESSENTIAL OIL AROMATHERAPY DIFFUSER – Use your favorite aromatherapy essential oils to infuse the air with a soothing fragrance; Choose from oils to promote clarity, boost energy, easy anxiety, or aid sleep WORKS WITH HOMEDICS AIR PURIFIERS FOR HOME – Intended as a direct replacement pad for the Homedics Air Purifiers and Humidifiers with an oil tray; Replace microfiber pad with each essential oil change STRESS-FREE ENVIRONMENT – Enhance your home or office environment; Relax and destress your body, invigorate your senses, and renew and refresh your air with these aromatherapy oils replacement pads WHAT’S IN THE BOX - (10) Homedics TotalClean Replacement Essential Oil Pads