| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| limitations of air purifying respirators | 0.3 | 0.5 | 7466 | 57 | 40 |
| limitations | 0.58 | 0.9 | 3174 | 41 | 11 |
| of | 0.46 | 1 | 8889 | 89 | 2 |
| air | 0.92 | 0.6 | 938 | 96 | 3 |
| purifying | 0.9 | 0.4 | 5589 | 57 | 9 |
| respirators | 1.93 | 0.3 | 424 | 39 | 11 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| limitations of air purifying respirators | 0.65 | 0.2 | 4923 | 93 |
