Eh, I’d argue with IAQ that I don’t want to go with mere common sense. I want to see it demonstrated to work. Which people have done now regarding covid aerosols and other particulates, which can be difficult to capture. These devices have been shown to work to catch them, while other DIY solutions don’t always. Similar to masks. N95s have a lot of engineering behind them. Sometimes things really are more complicated than they appear
Eh, I’d argue with IAQ that I don’t want to go with mere common sense. I want to see it demonstrated to work. Which people have done now regarding covid aerosols and other particulates, which can be difficult to capture. These devices have been shown to work to catch them, while other DIY solutions don’t always. Similar to masks. N95s have a lot of engineering behind them. Sometimes things really are more complicated than they appear