In this document, the DIY CADR values reported are those for the smallest or most penetrating particle size class measured in each study, typically 0.3-1 m, which is also the size class most relevant to indoor air quality (IAQ) hazards like wildfire smoke and COVID-19
Nguyen LC, Yang D, Nicolaescu V, Best TJ, Gula H, Saxena D, Gabbard JD, Chen SN, Ohtsuki T, Friesen JB, et al
Why choose Truewell for Recessed Filter Rod manufacturing
Their screen names include stonerchick609 or smotpoker
[7] Use of chewing tobacco also seems to greatly raise the risk of non-fatal ischaemic heart disease among users in Asia, although not in Europe