Main area of application: Gases and vapours from organic compounds with a boiling point below 65 degrees Celsius.
The service life of a filter depends on:
Concentration and characteristics of the workplace contaminant
Filter capacity, e.g. filter class, compare workplace concentrations to test values
Breathing volume and work rate
Humidity of the air
Temperature of the atmosphere
Gas filter test performance
Gas filter lifetime is tested by directing the test gas through the filter at 30 l/min, which is equivalent to the volume of air per minute used by an average person carrying out medium heavy work. The filter lifetime can be roughly calculated by comparing the concentration at the workplace and the minimum breakthrough times required for the filter type.
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