Professional Digital Formaldehyde Detector Air Quality Tester Analyzer HCHO TVOC

-3%

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0

0

-4%

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0

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0

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-2%

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0

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1

Incomplete data

Hcho detector tvoc particle 0.001mg/m digital formaldehyde time date 2.4 inch screen storage data air quality gas tester

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0

-6%

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-3%

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-3%

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0

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-4%

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0

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0

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0

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-6%

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-9%

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0

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-3%

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-3%

Incomplete data

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0

-1%

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-4%

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-4%

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0

-0.6%

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0

-2%

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-7%

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-3%

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0

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-11%

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0

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0

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-4%

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0

-0.8%

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-4%

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-5%

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0

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-5%

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0

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-6%

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-4%

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13

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-39%

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0

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0

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0

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0