Definition

1. Noun:
   • A controlled environment with extremely low levels of pollutants: A "clean room" is a specially designed room where the concentration of airborne particles like dust, microbes, and chemical vapors is controlled to very low levels. It is used in scientific research and manufacturing processes that require a sterile or contamination-free environment.

Examples of Usage

• Noun:
  • The microchips are assembled in a Class 100 clean room to prevent any dust from damaging the circuits.
  • Before entering the clean room, all personnel must wear special suits, gloves, and face masks.

Advanced Usage

• "to maintain a clean room": to keep the controlled environment within its specified contamination limits.
  • It is expensive to maintain a clean room because of the advanced filtration systems required.
• "clean room standards": the specific classification levels (e.g., ISO Class 5) that define the maximum allowable particles per cubic meter of air.
  • This facility's clean room standards meet the stringent requirements for pharmaceutical production.

Variants and Related Words

• Cleanroom (noun): An alternative, often single-word, spelling for "clean room".
  • The new laboratory features a state-of-the-art cleanroom.
• Cleanroom suit (noun): The protective clothing worn in a clean room.
  • Everyone must put on a cleanroom suit before proceeding to the assembly area.

Synonyms

• Sterile room: A room free from living microorganisms (often used in medical contexts, but "clean room" is broader, controlling non-living particles as well).
• Controlled environment: A general term for any space where environmental conditions are precisely regulated.

Related Phrases

• Clean room protocol/procedures: The strict set of rules for entering and working within a clean room.
  • All new employees must be trained in clean room protocols.
• Clean room certification: The official process of testing and validating that a room meets specific cleanliness standards.
  • The facility is undergoing its annual clean room certification this week.

Noun

1. a room that is virtually free of dust or bacteria; used in laboratory work and in assembly or repair of precision equipment