Final answer:
The crystal microdermabrasion machine uses a vacuum to spray fine particles on the skin for exfoliation and microbial load reduction.
Step-by-step explanation:
The type of microdermabrasion device that utilizes an electronic vacuum to spray particles across the skin is known as a crystal microdermabrasion machine. These devices work by emitting fine crystals, such as aluminum oxide or sodium bicarbonate, across the skin's surface using a vacuum suction. The action of these particles helps to exfoliate the skin and can reduce its microbial load through gentle to firm scrubbing. Crystal microdermabrasion not only removes dead skin cells but also promotes circulation and can facilitate a healthier skin complexion.