The ultrafine dust sensor on an air purifier is located inside the product, and it cleans a large amount of air with the size and speed of the air intake fan, while measuring the ultrafine dust value.
The Measuring Device and an air purifier are products with different structures, so the ventilation line and air intake structure may also differ.
Please note that there may be value differences until the air purifier value stabilizes when you turn it on for the first time.
Yes, this is normal.
Turning on the humidifier doesn’t create fine dust, but if you use tap water in the humidifier, fine dust levels may appear high.
The more mineral content (calcium ions, magnesium ions) is in the water used in the humidifier, the higher the fine dust concentration as these particles are emitted with the water vapor.
First of all, it’s because the location and the measuring method are different from the measuring device of weather stations.
Whiparang Portable Fine Dust Measuring Device measures the customer’s surrounding air, so there will be differences with the weather station.
The weather station value is the average for an hour.
Thus, there will be differences if the weather quickly changes in real-time.
Yellow dust particle size varies from 10 to 1,000㎛.
It can measure fine dust particle size of 10㎖.
PM10 and PM2.5 have different measurements for different sizes of fine dust and ultrafine dust.
It doesn’t mean that PM10 is good and PM2.5 is bad but indicates that they’re both accurately measured.
PM2.5 value changes according to air current, wind direction, humidity, and other external environmental causes.
(Pollutant causes, such as smoking, exhaust fumes, tire dust, yellow dust, coal gas, chimney, and furnace, can cause significant changes to the PM2.5 value of the measuring area.)