| negative ion → CapableOf → detect negative ions | 0.50 | |
| negative ion → CapableOf → neutralize positive ions | 0.31 | |
| negative ion → CapableOf → disperse into the air | 0.25 | |
| negative ion → CapableOf → increase alkalinity | 0.25 | |
| negative ion → CapableOf → spread in every direction | 0.25 | |
| negative ion → CapableOf → feel good | 0.16 | |
| negative ion → CapableOf → increase the flow of oxygen | 0.16 | |
| negative ion → CapableOf → produce biochemical reactions | 0.16 | |
| negative ion → CapableOf → purify the air | 0.16 | |
| negative ion → CapableOf → remove the pollution | 0.16 |