Energy costs are often overlooked when buying an air purifier. Although energy efficiency may seem minor, choosing an inefficient purifier can incur large electricity costs. In this article, we discuss how to choose an energy-efficient air purifier and also analyze the electricity costs of running some popular air purifiers. Comparison … Read more
In 2013, I made a DIY purifier to get through an apocalyptic Beijing winter. The DIY wasn’t pretty, but it worked. Hundreds of days of tests showed it cut tiny 0.5 micron particles in my bedroom by an average of 84% (1, 2, 3). The DIY proved that … Read more
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 … Read more
