Cleanroom – A room that is maintained virtually free of contaminants, such as dust or bacteria, used in
laboratory work and in the production of precision parts for electronic or aerospace equipment (also called
white room).

5.1 GOWNING
1. Use a shoe cleaner if necessary to remove any dirt/grime. Then, put on shoe covers (booties) one foot at a
time and hairnet. Step on tacky mat with both feet and enter gowning area.
2. Keep gowning area clean and adhere to cleanroom safety policies at all times.
3. Ensure that all jewelry (including rings and watches) is covered by protective wear and does not interfere
with research.
4. Continue to put on: bouffant cap or hood; facemask (Class 10 to Class 100). NOTE: Ensure no gaps around
nose or mouth; and coveralls (or frock/lab coat). Ensure that bouffant cap or hood covers hair and ears
completely. NOTE: Take care not to tear garment. If any tear occurs, remove garment and replace
immediately with a new one.

http://capsnet.usc.edu/sites/default/files/all_departments/E...

The purpose of the sterile gown is it is worn in order to permit the wearer to come within the sterile field and carryout sterile technique during an operative procedure. Approach the mayo stand immediately upon entering the operating room. Movements should be kept to a minimum so not to cause a draft; which will contaminate everything. Place arms in the gown to the inside of the cuffs. Make sure not to let fingers come out of the cuffs. Then proceed to gloving.

http://www.studymode.com/essays/Aseptic-Technique-Gowning-Gl...

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Note added at 18 mins (2014-04-17 00:17:59 GMT)
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Here is a photo of a gown:

http://jameswsteele.files.wordpress.com/2013/09/nonwoven-sur...

http://medical-dictionary.thefreedictionary.com/gowning

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Note added at 25 mins (2014-04-17 00:24:31 GMT)
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The gowning room is where people put on protective garments and the de-gowning room is where they take them off.