I'm looking for an air purifier.
Everyone is only saying that they are using a few Hepa filters.
I looked it up and found that even if you say it's the same HEPA filter grade, it's not reliable.
More than this, I think there's something that measures how much air has actually been cleaned.
For example, air pollution is also measured.
Is there an objective figure to compare air purifiers?
449 2017-04-23 Lady
There's something called CADR (Clean Air Delivery Rate).
http://hans1818.blog.me/220053904805
It is explained in detail here, so it would be helpful if you read it.
The Clean Air Delivery Rate (CADR) is an indicator of the amount of air supplied filtered by air purifiers certified by the American Association of Home Appliance Manufacturers, and the higher the CADR value, the faster the ability to purify air.
As of November 2010, the U.S., Germany, France, Spain, China, Singapore, and the Philippines have numerically supported the performance of air purifiers as a standard for comparing and selecting air purifiers.
For more information, please click the link below.
http://blog.naver.com/honestair/220806793340
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