All of the following regarding low-intensity ultrasound with saline mist are true EXCEPT that:

A. it is purported to increase angiogenesis and collagen production.
B. the ultrasound is delivered at a frequency of 1.0 MHz.
C. personal protective equipment required includes gloves, shoe covers, hair cover, and mask with face shield.
D. it may assist with debridement and removal of biofilms.

B