Nitrogen is widely used for tyre inflation in the motor sport and aviation sectors and in a number of European countries for car and commercial vehicle tyres.
The gas is inert and completely safe, making up 78% of breathable air.
Most importantly, by using it to reduce the concentration of oxygen in a tyre it is possible to equalise the partial pressure between the air inside each tyre and the surrounding atmosphere.
As a result, the common problem of slow deflation caused by oxygen slowly leaking through the tyre wall is virtually eliminated, thereby ensuring that tyres remain at their correct pressures between vehicle servicing.
This has the added benefits of improving fuel consumption and of enhancing safety by minimising the danger of under inflation.