What requirements should the pollution source generation device of the air duct cleaning device meet?

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What requirements should the pollution source generation device of the air duct cleaning device meet?

The pollution source generation device shall conform to the following specifications:

a) The pollutant generation source for testing shall be capable of steadily generating the pollutants.

b) It is necessary to ensure that the concentration of generated pollutants is about 5 times the standard concentration, and the fluctuation is not more than ±0.1 time the standard concentration.

Different types of pollution source generation device shall meet the following requirements:

1) Chemical pollution source generation device

Generation device meeting the initial concentration of the test by reference to the specifications for the generation device;

2) Particulate pollution source generation device

Use the aerosol generator to generate the potassium chloride aerosol as the pollution source according to the specifications in the air filter standard GB/T 14295;

3)See GB 21551.3-2010 for the microbe pollution source generation device.