| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best hepa filter air purifier for classroom | 1.4 | 0.1 | 1045 | 25 |
| hepa air filter for classroom | 1.57 | 0.3 | 2824 | 39 |
| best hepa filter air purifier for bedroom | 1.75 | 0.7 | 6435 | 20 |
| best air purifier for classroom | 0.76 | 0.9 | 7456 | 24 |
| best air purifier for school classroom | 0.35 | 0.4 | 5648 | 9 |
| best air purifier with hepa filter | 1.21 | 0.1 | 2454 | 66 |
| portable hepa filter for classroom | 0.79 | 0.5 | 9319 | 8 |
| best hepa air purifier for small room | 0.83 | 0.7 | 5756 | 48 |
| best hepa room air purifier | 1.21 | 0.4 | 8605 | 1 |
| best room air purifiers with hepa filters | 0.86 | 0.5 | 3871 | 71 |
| hepa filters for classrooms | 0.26 | 1 | 6323 | 17 |
| hepa filter air purifier for classroom | 0.89 | 0.2 | 6002 | 92 |
