I found these recipes on Herb Companion newsletter
Vaporized Room ScentsPromote a specific mood inside your home by using a purchased diffuser (a glass or ceramic container and votive candle) to disperse the scent of an essential oil. Follow the diffuser’s instructions. If you do not have a diffuser, simply add a few drops of essential oil to a pan of water and heat it on the stovetop. Try the following basic combinations, or experiment with your own blends.
Relaxing Blend:• 4 drops bergamot essential oil
• 3 drops lavender essential oil
• 1 drop frankincense essential oil
Energizing Blend:• 5 drops peppermint essential oil
• 3 drops geranium essential oil
• 1 drop eucalyptus essential oil
Cleansing Blend:• 2 drops lemon essential oil
• 1 drop thyme essential oil
• 4 drops geranium essential oil
Place essential oils into the glass bowl of your diffuser. Light the candle to heat the oils and release the scent throughout the room. Use for 5 to 15 minutes at a time.
Read more: http://www.herbcompanion.com/body-care/body-soul-make-fragrance-essential.aspx?page=3#ixzz1WYQ4wfxi