Black SageMugwort (also known as Mugwort) smudge sticks can be used in traditional smudging practice to purify and cleanse with their sacred smoke, they are favored for their use in divination and seeking spiritual journeys and prophetic dreams. Mugwort is also associated with lust and fertility. Black sage is good for cleansing and rituals of healing and protection, it also dispels negative energies.
Smudges may help clear the air, scientists have observed that sage can clear up to 94 percent of airborne bacteria and disinfect the air. Also, when sage is burned, it releases negative ions, which is linked to putting people into a positive mood. 
Smudging requires simple ingredients like matches, smudging herbs, and a smudging bowl. Before you start, remember to open a door or window, because the unwanted energy you are trying to clear must have a pathway to get out. First, light one end of your smudge, allowing it to catch fire and burn for several seconds. Then gently blow on the lit end - the smudge will begin to glow and smoke. Lay the smudge on a heatproof bowl to catch the ashes as it burns.