Table 1.
Information on the non-medical materials and the tests conducted.
| Filter type | Brand | Model | Layers | Acronym | |
|---|---|---|---|---|---|
| N95 | 3M | 8210 | 1 | N95 | 5.76 |
| KN95 | NIDI | 3D Mask | 1 | KN95-N | 4.62 |
| KN95 | Jinjiang | GW2049 | 1 | KN95-J | 5.90 |
| Surgical (earloop) | Walgreens | N/A | 1 | Sg | 2.92 |
| Household air filter | 3M | 1900 MPR | 1–2 | H19 | 3.67 |
| Household air filter | 3M | 2500 MPR | 1–4 | H25 | 5.71 |
| Household air filter | BestAir | 3000 MPR | 1–8 | H30 | 7.20 |
| Vacuum Bag | Hoover | N/A | 1 | VB | 3.09 |
| Coffee Filter | Natural Brew | N/A | 3 | NB-3 | 0.29 |
| Coffee Filter | Brew Rite | N/A | 3 | BR-3 | 0.34 |
| Activated Carbon | API | Coarse | 1 | CC | 1.14 |
| Activated Carbon | API | Fine | 1 | FC | 1.22 |
| Bandana | Levi | Men's Cotton | 1–4 | B | 0.37 |
| Scarf | Wander Agio | Warm Long | 1–4 | S | 1.10 |
| Pillowcase | Cal Design Den | 400 TC | 1–4 | P4 | 0.34 |
| Pillowcase | Cal Design Den | 600 TC | 1–4 | P6 | 0.38 |
| Pillowcase | Cal Design Den | 1000 TC | 1–4 | P10 | 0.46 |