Home Forum Community My house in Sydney hit the 1000 μg/m³ PM2.5 limit

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    “Maximum value 1000 μg/m³” … the flatline at 980μg/m³ makes me think I hit that limit. And “PM2.5 has dropped to 900μg/m³” is not somthing I ever thought I’d say.

    The fires in NSW have a lot of people buying particulate masks even though none of them are rated for air as bad as we have. They all say “do not use when pollutants exceed 10 times the safe limit” which is 20-50μg/m³ depending on whose limits you use. Not that is matters, 1000μg/m³ is more than 10x any of the safe limits.

    I like the look of the “smoggie” unit, but I’d quite like CO2 as well, assuming we can sort out the calibration problems with that measure. But either way I suspect my cowokers will be buying one to put outside at work.


    Do you get any smoke from the wildfires where you are?

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