puhdastila
Puhdastila is the Finnish term for a cleanroom, a controlled environment designed to limit the introduction, generation, and retention of airborne particles, microorganisms, and other contaminants. Such spaces are essential in industries where product quality and safety depend on air quality and surface cleanliness, including pharmaceuticals, biotechnology, electronics manufacturing, medical devices, and clinical laboratories. Cleanrooms are designed around strict environmental controls and are typically classified according to international standards, most commonly ISO 14644-1. Validation and ongoing monitoring per ISO 14644-2 and related guidelines are used to demonstrate that a space meets its cleanliness specification.
Construction and operation in a puhddastila rely on specialized HVAC systems with high-efficiency filtration, such as
Classification and use: Cleanrooms are designated by cleanliness levels that specify permissible particle concentrations for defined