When sourcing a toner vacuum, the most critical component is the HEPA (High-Efficiency Particulate Air) filtration system, which must be capable of capturing particles as small as 0.3 microns with 99.97% efficiency. Standard vacuums will blow toner dust back into the air, creating a health hazard. Additionally, ensure the motor has ESD (Electrostatic Discharge) protection to prevent static buildup, which is common when vacuuming fine powders and can damage sensitive electronic components or cause shocks.