If there is a machine at the door for this purpose (spinning brushes), use it. Place your foot and shoe together inside it. Hold the handle to steady yourself, then press the button. You’ll feel a slight tug on your shoe from the moving brushes, but it won’t damage your shoe. If there is an adhesive doormat, step on it several times.
Start putting on your cleanroom gear on the “getting dressed” side of the bench. Put on a hair cover (bouffant cap) and/or hood. Use a beard cover to cover any facial hair beard or mustache). Adjust hood when closing snaps on front and back so it is snug and comfortable. Put on coveralls or a smock. If in two parts, put on jacket first, then pants. Zip or snap it closed all the way up, over the neck of the hood if you are wearing one. Close any snaps at the cuffs to gather the sleeves snugly around your wrists. Sit on the bench to put on shoe covers or booties. Be sure to tuck pants inside the booties, and don’t let the booties touch the ground on the “getting dressed” side of the bench. Alternatively, use an automatic shoe cover dispenser. Put on latex gloves, or the appropriate substitute for those allergic to latex. Tape sleeves and ankles if necessary.
Keep your cleanroom apparel on at all times when working in the cleanroom. Do not bring in any of the following items: pencils (note that graphite is conductive), erasers, non-cleanroom paper, wood, abrasives, or packaging materials such as cardboard. Keep non-cleanroom paper in a plastic sleeve if you must refer to it. Use only cleanroom tape. Be aware of what else you bring in. Correctly wipe down any equipment you bring in. Do not remove cleanroom equipment from a cleanroom. Move slowly and evenly. Rapid, sudden, or jerky movements can shed many particles.
Use fresh gloves, hair covers, and disposable shoe covers every time you enter. You can reuse smocks, coveralls, reusable shoe covers, and reusable caps or hoods, but exchange or have them cleaned periodically.
