urged the public to wear face masks whenever possible and seek immediate medical attention if experiencing breathing difficulties due to slightly unhealthy air quality levels recorded in several ...

One example that the team explains is how the mask can potentially monitor levels of nitrite in a person ... which also propelled the face mask industry forward. Technology pundits were eager ...

According to the Simple Flying website, we have about 10 to 14 minutes worth of oxygen and that’s it. However, that’s plenty of time for the pilot to drop down to below 10,000 feet where we ...

oxygen bars ... of 40% oxygen that is delivered through a mask worn over the face. Proponents of this oxygen "therapy" say it boosts energy levels, increases your endurance during exercise ...