A market report from Entec, an environmental consultancy, has provided encouragement for the producers of a new filtration material made from recycled glass. Parker Balston has launched Tyresaver, a compact, self-contained nitrogen generator for independent tyre centres and garages to inflate tyres. Two aspects of filtration have a direct impact on the environment: first, filters are frequently used to extract contaminants from liquids and gases so that they do not pollute; second, the filter elements - which are inevitably contaminated - have to be safely disposed of at their end of their useful life so that they do not pose a fresh hazard. A market report from Entec, an environmental consultancy, has provided encouragement for the producers of a new filtration material made from recycled glass. Parker Balston has launched Tyresaver, a compact, self-contained nitrogen generator for independent tyre centres and garages to inflate tyres. Two aspects of filtration have a direct impact on the environment: first, filters are frequently used to extract contaminants from liquids and gases so that they do not pollute; second, the filter elements - which are inevitably contaminated - have to be safely disposed of at their end of their useful life so that they do not pose a fresh hazard.