What if the technician uses a mask?

Some technicians wear masks to protect themselves from dust and vapors from products used in nail services. Some also have allergies that make it more comfortable to work for long hours in the salon. A mask is not always a sign that a technician is using MMA, but it can be an indicator. Check the other indicators of MMA use if you see the technician wearing a mask. If most of those indicators are visible, you have to decide whether you want to patronize that salon.