| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| astm levels for masks | 1.75 | 0.4 | 9778 | 15 | 21 |
| astm | 1.53 | 0.6 | 8654 | 76 | 4 |
| levels | 0.96 | 0.7 | 6710 | 16 | 6 |
| for | 1.48 | 0.4 | 4539 | 85 | 3 |
| masks | 0.23 | 0.8 | 4997 | 72 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| astm levels for masks | 1.52 | 0.6 | 8458 | 22 |
