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. 2023 Jul 6;13:10980. doi: 10.1038/s41598-023-38155-0

Table 2.

The Fel d1 aerosol concentration in PC, PFD, and HFD chambers at pre and post air-filtration determined as ng per 2L of chamber air sample.

PC Chamber #2 PFD Chamber #3 HFD Chamber #4
Pre Post Pre Post Pre Post
Wk1 55.08 22.60 70.00 BDL 63.26 BDL
Wk2 76.94 43.01 53.93 BDL 47.07 BDL
Wk3 97.21 44.97 54.18 BDL 50.55 BDL
Wk4 46.13 27.34 82.05 0.08 71.51 BDL
Wk5 55.91 46.15 65.78 BDL 71.45 BDL
Wk6 29.02 17.36 62.54 BDL 53.89 BDL
Mean 60.05 33.57 64.74 0.08 59.62 BDL
 ± SEM 9.77 5.16 4.33 BDL 4.35 BDL

BDL below detection limit, NC negative control, PC positive control, PFD PECO-assisted air filtration device, HFD HEPA-assisted air filtration device.