Humans are one of the most common contaminates in a clean room. Even the slightest bit of dust, hair, perfume, etc. can contaminate a clean room. To maintain the integrity of the room, the garb or apparel one wears into the room is imperative. Depending on the type of clean room and facility, the level of cleanliness will vary as will the apparel worn by those working in the room. For example, the regulations may be different if it is a USP 797 or USP 800 clean room. As you are getting dressed in the regulated garb, please take note to follow protocol for the order so as not bring any unnecessary contaminates into the clean room.
The apparel can either be disposable or launderable depending on the needs and requirements of the clean room. Another factor for choosing between the two options is funding and availability. Laundering facilities for clean room garments can be difficult to find in certain areas, unless there is laundering in-house. The repetitive cost of paying for disposable garments may also be cost prohibitive depending on how many changes employees go through in a shift.
The technology to create materials for the production of high-quality garments has improved. There are now launderable garments made of Dupont’s Tyvek® that can absorb certain organic liquids and hold them until evaporated, and will also seal in human contaminates. There are many other materials such as Spunbonded polypropylene (SBPP), Compressed polyethylene (CPE), and Spunbonded-meltblown-spunbonded (SMS) that all strive to offer similar results. Be sure to find out what the proper attire is for your specific clean room.