Demons can smell like sulfur, roses, cologne...anything! They can also appear as: an angel of light, a dead person or child, a spirit guide, a healing spirit (reiki), an alien, a fairy, a dwarf, a spirit animal etc! We can't safely discern them! The safest thing to do, is let Jesus and his angels protect us.
The recommendation is therefore that the stimulation should be applied with a 2500Hz carrier medium frequency sinusoidal alternating current, burst at 50 Hz (10ms ON: 10ms OFF) at a maximum tolerable level.
1 A frequency band in which the ratio of the upper frequency limit to the lower frequency limit is. 2  to one third of an octave. 3  The 1000 Hz one-third octave band, for instance, comprises frequencies ranging from about 891 Hz to 1122 Hz. to one third of an octave. 2  The 1000 Hz one-third octave band, for instance, comprises frequencies ranging from about 891 Hz to 1122 Hz. 3  Also called one-third octave frequency band, or third octave band.