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What is ACH (Air Changes per Hour)?

Ozcon Environmental Solutions News and PR from Ozcon Environmental Solutions - Published 14 October 2020 While designing the ventilation systems, it is always taken into consideration that the usage purpose of the spaces and the people in the spaces will pollute the air.
While calculations are made, the approximate value experienced per person in the space is taken. The usage purposes of the venues may change over time or the number of people may increase. The same conditions should be observed when choosing an air cleaner. The amount of fresh and clean air needed per person is determined by the authorities.

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it measures how many times the air in the room is replaced

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