The Respro Techno mask combines the Respro Sportsta mask’s Hepa-Type filtration for sub-micron pollutants with the City mask’s Dynamic Activated Charcoal Cloth (DACC) filter. This combination provides increased performance ability covering a broader spectrum of dusts and nuisance odours than either filter on its own. Working in combination with the Techno filter are two new Techno valves specifically designed to improve airflow performance on exhalation. With these new features, the Techno mask is at the top of the range.