| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best hepa air purifier 2020 | 1.8 | 0.5 | 5481 | 58 |
| best hepa air purifier 2024 | 0.06 | 0.2 | 8330 | 5 |
| best hepa air purifier 2023 | 1.85 | 0.2 | 5302 | 51 |
| best hepa air purifier 2021 | 0.59 | 0.6 | 8729 | 1 |
| best hepa air purifier 2022 | 1.4 | 0.1 | 9462 | 5 |
| best hepa air purifier 2018 | 1.84 | 0.6 | 1738 | 96 |
| best hepa air purifier 2012 | 1.7 | 0.6 | 7100 | 44 |
| best hepa air purifier 2015 | 1.43 | 0.6 | 4835 | 79 |
| best hepa air purifier 2016 | 0.15 | 0.6 | 3390 | 73 |
| best hepa air purifier 2017 | 0.27 | 0.5 | 3383 | 73 |
| best hepa air purifier 2018 for dust mites | 0.4 | 0.6 | 6453 | 59 |
| best large room hepa air purifier 2020 | 1.64 | 0.9 | 5573 | 39 |
