| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best air purifier 2018 cnet | 1.72 | 0.8 | 2346 | 66 |
| best air purifier 2019 cnet | 0.11 | 0.5 | 3219 | 44 |
| best rated air purifier 2018 | 1.74 | 1 | 7256 | 27 |
| best new air purifier | 1.22 | 0.2 | 9879 | 83 |
| best rated air purifier 2016 | 0.95 | 0.2 | 9418 | 94 |
| rated best air purifier | 1.96 | 0.3 | 3480 | 42 |
| top 10 best air purifier | 1.16 | 0.5 | 7864 | 17 |
| top best air purifier | 0.3 | 0.6 | 3632 | 33 |
| best air purifier 2018 consumer reports | 1.46 | 0.4 | 3186 | 73 |
| best budget air purifier 2018 | 0.93 | 0.6 | 8410 | 17 |
| cnet best air purifier | 1.49 | 0.3 | 1750 | 2 |
| best indoor air purifier 2018 | 1.72 | 0.6 | 1944 | 14 |
| best home sized air purifier 2018 | 0.71 | 0.7 | 8726 | 75 |
| best air purifier 2017 | 0.01 | 0.8 | 9042 | 79 |
| best air purifier 2016 | 0.59 | 0.1 | 7119 | 58 |
| rated best air purifiers | 1.54 | 0.2 | 5124 | 44 |
| top rated air purifier | 1.78 | 0.9 | 2130 | 86 |
