Copal is a completely natural incense that is used to purify the energy of spaces, places and objects. It has a light, woody scent that could be compared to pine. Copal can be used to clear away all the negative energy and make positive changes. It brings a very positive and loving energy that will fill your home with peace. Copal is a good choice for jewelry and crystal cleansing.
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.