Humidifying the Household

Household heating systems can contribute to a dry environment, which
can damage the skin and irritate the respiratory system. To add
moisture to the air, this essential oil blend can be added to the
water in a commercial household humidifier. Or alternatively, add
to a large bowl of water that is place beside a heat source.

2 drops of palmarosa
2 drops of bergamot
2 drops of grapefruit

Taken from: Aromatherapy Guide Book, by Retreat Aromatherapy

This and many more recipes can be found in our Green Living section of the Sustainable Pagans forum.