| Kimyasal | Formülü | CAS | Tipi | Ölçü | Gaz İçin | Partikül İçin |
| Dinitrogen monoxide/laughing gas | N2 O | 10024-97-2 | Gaz | ppm | NO | |
| Dinitrogen tetroxide (N2O4), | N O2 | 10102-44-0 | gaz | ppm | NO | |
| Dinitrogen tetroxide (N2O4), | N O2 | 10102-44-0 | gaz | ppm | NO | |
| Hyponitrous acid anhydride | N2 O | 10024-97-2 | Gaz | ppm | NO | |
| Nitrogen dioxide | N O2 | 10102-44-0 | gaz | ppm | NO | |
| Nitrogen peroxide | N O2 | 10102-44-0 | gaz | ppm | NO |