Every cell has an optimal functioning frequency. Various forms of research are conducted to determine frequencies that will help promote healthy cells, and those that will help remove undesirable cell types (like cancer, microbes, and toxins) from the body. Special technology brains generate the frequencies and send them through the PERL machine.  The PERL uses an Argon Gas as a carrier wave to deliver the frequencies; the waves extend over a 30 foot radius in all directions, any living thing within that 30 foot will be effected by the waves. 

If the cells in your body are functioning at a frequency that is not quite optimal, the PERL will help bring it back to an ideal frequency through a process called entrainment, similar to how one tuning fork can take on the frequency of another tuning fork.  Your cells will only be effected by what ever frequencies that it needs.