This article includes supplemental data for the main article “Is China to blame for Seoul’s air pollution?” This supplemental data will show how high and low wind speeds affect the PM2.5 levels. Ultimately, this supplemental article draws the same conclusion as the main article. Does Wind Speed Affect PM2.5? What if particulate matter can […]
Tag: supplemental data
How Long Do the Blast and Blast Mini HEPAs Really Last? – Supplemental Article
Estimating Lifespan from the DIY 1.0 Longevity Tests The Blast HEPA is 20 times bigger than the DIY 1.0 and it is made of the same material. Thus, is it reasonable to think that the Blast HEPA will last 20 times as long? Not really, because the Blasts push more air and clean bigger rooms, […]
So You Thought Hong Kong’s Pollution Comes From the Mainland? – Supplemental Data
This article includes supplemental data for the main article “So You Thought Hong Kong’s Pollution Comes From the Mainland?” This supplemental data will show how high and low wind speeds affect the PM2.5 levels and hence Hong Kong’s pollution. Ultimately, this supplemental article draws the same conclusion as the main article. Does Wind Speed […]
This Data Explains Why You Should Never Use Your Purifier’s Auto Mode – Supplemental Data
Data and Test Details Test Methods: These tests were identical to my previously published tests, details of which can befound here, here, and here. Original Data: The original data for all 13 tests is available as an Excel file here Average Outdoor PM2.5 During Tests It’s important to note the average outdoor PM2.5 during tests because purifiers achieve smaller percentage […]
Can I Clean or Wash HEPA Filters? – Supplemental Data
This post contains supplemental data for the post “Can I Clean or Wash HEPA filters?“. It includes detailed information about the testing method, and the original data, open-sourced for all to view. Click here to view the original article Open Data Particle Capture Tests For the particle capture tests, CK used a Met One GT-531 […]
New DIY Design Increases CADR 15% – Supplemental Data
Methods Results were identical to my earlier tests of the Original DIY, Blue Air, IQ Air, Xiaomi, and Philips. Anna conducted the overnight tests in her 15m2 Beijing bedroom. Doors and windows were closed during the test (except for occasional opening during the first couple hours before bed—that random variation is one reason I use […]
Xiaomi Auto Mode Leaves Air Unsafe for 86% of Hours – Supplemental Data
This article includes supplemental data for the main article “Xiaomi Mi 2 Auto Mode Leaves Air Unsafe for 86% of hours | Review“ Data and Test Details Settings The app asks what size the room is. How Xiaomi uses that data is a little opaque, but it would be logical that settings for larger rooms […]
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