Hi Jennifer, thank you for giving our Air Wick Essential Mist Diffuser a try! Depending on the intensity setting selected on the device, your refill can last up to 45 days. If you would like to prolong the life of your oil, we recommend decreasing the interval setting. We hope this information helps. Sincerely, Your Air Wick Team.
Stop inhaling or diffusing essential oils if this is the case. Oils that can be less irritating when inhaled include peppermint, lavender, tea tree, eucalyptus and chamomile. ( 4) Use a diffuser for about 30–45 minutes at a time for the most effectiveness. Don’t leave your diffuser plugged in overnight..