| 6. Climatización | 1 Mb | 05-2019 |
| 7. Ventilación | 4 Mb | 05-2019 |
| 8. Difusión | 19 Mb | 05-2019 |
 | QUNTEC Catálogo recuperadores de calor 2018 Tarifa QUNTEC rejillas 2017 | 503 Kb 932 Kb | 2018 2017 |
 | Tarifa SODECA 2019 | 19 Mb | 2019 |
 | Tarifa completa S&P Soler y Palau 2019 | 130 Mb | 2019 |
 | Tarifa SISTEVEN 2019 Catálogo SISTEVEN 2016 | 4.5 Mb 16.2 Mb | 2019 2016 |
 | Tarifa Casals 2019 | 30 Mb | 2019 |
 | Tarifa AIRZONE 2019-2020 | 7 Mb | 2019- 2020 |
 | Tarifa MADEL Rejillas 2019 | 13 Mb | 2019 |
 | Tarifa NOVATUB 2015 | 14.9 Mb | 2015 |
 | Tarifa SIKLA 2016 | 24.3 Mb | 2016 |