Many purifier companies offer air purifier rental services as part of their business model. It sounds great: they offer to rent you an air purifier short term, and you save money in the process. This simple analysis will show why that system is flawed, and how renting air purifiers is just another way to make […]
Tag: Blast
What Eats Airpocalypse for Breakfast and Doesn’t Cost Thousands of Dollars?
Four years ago, I was coughing through a Beijing winter and wanted some clean air. But all the purifiers I could find cost hundreds of dollars, so I strapped a filter to a fan I had at home and made my first DIY purifier. It wasn’t pretty, but I tested it with a laser […]
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