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Size-Dependent Filtration Efficiency of Alternative Facemask Filter Materials.
Dhanraj DIA, Choudhary S, Jammalamadaka U, Ballard DH, Kumfer BM, Dang AJ, Williams BJ, Meacham KW, Axelbaum RL, Biswas P. Dhanraj DIA, et al. Among authors: kumfer bm. Materials (Basel). 2021 Apr 9;14(8):1868. doi: 10.3390/ma14081868. Materials (Basel). 2021. PMID: 33918714 Free PMC article.
Protection levels of N95-level respirator substitutes proposed during the COVID-19 pandemic: safety concerns and quantitative evaluation procedures.
Ballard DH, Dang AJ, Kumfer BM, Weisensee PB, Meacham JM, Scott AR, Ruppert-Stroescu M, Burke BA, Morris J, Gan C, Hu J, King B, Jammalamadaka U, Sayood S, Liang S, Choudhary S, Dhanraj D, Maranhao B, Millar C, Bertroche JT, Shomer N, Woodard PK, Biswas P, Axelbaum R, Genin G, Williams BJ, Meacham K. Ballard DH, et al. Among authors: kumfer bm. BMJ Open. 2021 Sep 2;11(9):e045557. doi: 10.1136/bmjopen-2020-045557. BMJ Open. 2021. PMID: 34475144 Free PMC article.