| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best air purifier no filter replacement | 1.6 | 0.6 | 7365 | 27 |
| best air purifier no filter | 1.07 | 0.1 | 4717 | 71 |
| best ionic air purifier no filter | 1.01 | 0.9 | 299 | 83 |
| the best air purifier no replacement filters | 1.07 | 0.4 | 3213 | 35 |
| best air filter purifier | 1.35 | 0.2 | 2217 | 34 |
| best filter free air purifier | 1.86 | 0.3 | 6153 | 28 |
| air purifier with no filter | 1.62 | 0.4 | 8841 | 5 |
| no filter air purifier reviews | 0.88 | 0.4 | 8340 | 79 |
| air purifiers for home no filter | 0.87 | 1 | 9982 | 34 |
| best air purifier with inexpensive filters | 1.81 | 0.7 | 743 | 63 |
| air purifier no filter replacement | 1.12 | 0.4 | 4295 | 90 |
| best non filter air purifier | 0.69 | 1 | 3444 | 73 |
| air purifier with no filters to replace | 1.91 | 0.5 | 1577 | 84 |
| best air purifiers without filters | 0.12 | 0.8 | 4550 | 95 |
| top rated air purifiers without filter | 1.04 | 1 | 4090 | 59 |
