Where should an air filter be placed relative to the fan for best efficiency?

If you’ve been wondering whether the filter should go on the front or back of the fan, then you’re in luck, because this nerd right here has been building and testing DIY air purifiers to survive Beijing for the last four years! I’ve got actual data on this question, and the answer is the opposite of what most people tell me […]

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Smart Air Indoor Air Quality Audit in 3ESpace

Date of audit: 27/05/2017 Audit conducted by: Yap Choon Khin Paddy Robertson Air quality monitor: Dyloc DC1700 Pro AirVisual Node Audit location: 3ESPACE, Beijing Jiaodaokou, Xinhua New Culture Building, 5th floor Air quality measurement outside premises: 115 µg/m3 Corresponding Air Quality Index (outdoors)[1]: 182 Air quality inside premises: 70 µg/m3 Corresponding Air Quality Index (indoors): […]

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