| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| nih respiratory protection program | 1.76 | 0.4 | 6279 | 4 | 34 |
| nih | 0.71 | 0.3 | 7511 | 2 | 3 |
| respiratory | 1.85 | 0.9 | 8267 | 40 | 11 |
| protection | 0.84 | 0.7 | 500 | 79 | 10 |
| program | 0.27 | 0.1 | 7602 | 42 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| nih respiratory protection program | 1.29 | 0.3 | 7317 | 6 |
