More times than not, cleanroom contaminants come from lab personnel. That is why it is important to follow cleanroom gown procedures. By gowning appropriately, personnel can minimize contamination risks entering the cleanroom.
Before Entering The Gowning Area
Clean hands from fingertip to elbow
Clean street shoes using sticky mats or brushes
Put on shoe covers and remove personal items
Don a hair cover or bouffant; add beard cover if needed
Remove street clothes and change into scrubs
Pull on surgically clean gloves
Cleanroom Gowning Procedures
Work from ungowned (dirty) side to gowned (clean) side. Handle garments by inside surfaces when possible. Clean gloves with isopropyl alcohol between steps.
Put on hood, laying it flat over shoulders
Attach face mask snugly
Put on coveralls, tucking hood inside before zipping
Put on boots, swinging feet to clean side
Put on goggles or shield
Apply final glove layer
Both booties and gloves should overlap the coveralls. Perform self-check upon completion. Use shoulder, forearm, or hip to open cleanroom doors.