| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| does oxygen in tanks expire | 1.01 | 0.2 | 10 | 67 |
| do oxygen tanks expire | 1.33 | 1 | 3516 | 70 |
| can oxygen tanks expire | 1.91 | 0.9 | 9121 | 38 |
| do medical oxygen tanks expire | 0.51 | 0.1 | 5612 | 62 |
| how long does oxygen tanks last | 1.77 | 0.5 | 6240 | 57 |
| oxygen tanks how long do they last | 0.48 | 0.7 | 4740 | 19 |
| oxygen tank expiration date | 0.9 | 0.3 | 147 | 29 |
| how long are oxygen tanks good for | 0.89 | 0.4 | 7377 | 54 |
| how long will tank of oxygen last | 0.92 | 0.1 | 7234 | 63 |
| oxygen tank lasts how long | 1.75 | 0.4 | 2257 | 29 |
| how long does 1 oxygen tank last | 0.85 | 0.3 | 2789 | 88 |
| do o2 tanks expire | 1.72 | 0.5 | 7444 | 9 |
| how long do small oxygen tanks last | 0.76 | 0.8 | 7963 | 63 |
