A cheap charcoal air filter can reduce nitrogen dioxide (NO2) inside vehicles by as much as 90%, compared to levels outside the vehicle. A cheap charcoal air filter can reduce nitrogen dioxide (NO 2) ...

Researchers at Birmingham University have found that a charcoal air filter can reduce nitrogen dioxide inside vehicles by as much as 90 per cent compared to levels outside the vehicle. Image via stock ...

It’s not uncommon to get minor headaches or deal with sniffles when spraying agricultural chemicals. If the cab of your tractor or self-propelled sprayer is well-sealed, and the problem isn’t simply ...

[Andrew]’s Air filtering unit & positive pressure supply might look like something off the set of Ghostbusters, but it’s an experiment in making a makeshift (but feasible) positive pressure suit. The ...

A cheap charcoal air filter can reduce nitrogen dioxide (NO 2) inside vehicles by as much as 90%, compared to levels outside the vehicle. Research presented in a report by WM Air, the West Midlands ...