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Filtering efficiency of PTCMs against PM10.
| S. N. | Cloth masks (PTCMs) | Without filtration (μg/m3) mean ± S.D | With filtration (μg/m3) mean ± S.D | TIL (%) | Efficiency (%) |
|---|---|---|---|---|---|
| 1. | PTCM 1 | 49.98 ± 2.83 | 13.82 ± 3.35 | 28 | 72 |
| 2. | PTCM 2 | 40.13 ± 3.01 | 13.56 ± 1.43 | 34 | 66 |
| 3. | PTCM 3 | 46.98 ± 1.84 | 15.73 ± 2.74 | 33 | 67 |
| 4. | PTCM 4 | 42.83 ± 2.32 | 17.71 ± 2.62 | 41 | 59 |
| 5. | PTCM 5 | 54.48 ± 8.04 | 20.84 ± 9.05 | 38 | 62 |
