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1. Localized ambient protection by air flow
Air is a major vector of contamination. As it moves, it carries solid or liquid aerosols and/or particles. These may be deposited on surfaces or products, which may be altered as a result. The notion of protection against airborne particles varies according to the spatial extent of this protection: it can be global, i.e. extended to an entire volume on the scale of a room or cell, or localized, i.e. in a particular volume encompassing the product to be protected and open to a less controlled environment.
In the case of global protection, in a confined environment, the air is purified using high-efficiency filters (EPA, HEPA, ULPA)
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Localized ambient protection by air flow
Typical mixing flows
Bibliography
Events
ContaminExpo – Exhibition and conference on contamination control and cleanrooms, held every two years in Paris (odd-numbered years):
Standards and norms
ISO
- Classification de la propreté particulaire de l'air, NF EN ISO 14644-1 (février 2016). - ISO 14644-1 - 2015
- Ergonomics of thermal environments – Analytical determination and interpretation of thermal comfort by calculating PMV and PPD indices and local thermal comfort criteria. - ISO 7730 - 2005
- Filtres à air à haute...
AFNOR
Regulations
World Health Organization (WHO) – Ambient air quality and health. Fact Sheet No. 313 (2016).
http://www.who.int/mediacentre/factsheets/fs313/fr/
Directive 2008/50/EC of the European Parliament and of the Council of May 21, 2008 on ambient air quality and cleaner air for Europe.
...
Patents
Device for protecting an operating area and corresponding method (FR3008782).
Air flow diffusion system (FR2973100).
Filtered air diffuser (FR2900718).
Method and device for close protection of a work surface by means of a clean air flow (FR2750199).
Directory
Organizations – Federations – Associations (non-exhaustive list)
Anses (Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail) :
ASPEC (French reference organization for all those involved in contamination control in cleanrooms and controlled-atmosphere zones):...
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