Gone are the days when everyone used to rush to the seaside to take in fresh breaths of ozone; now alarmists are warning that low-level ozone is a health-hazard, especially in the office: London-based Incotek Ltd, the UK distributor of Minozon, an ozone filtration product from the Danish company Dansk Teknologi, gathered a collection of scientific bodies to warn of the risks of nausea, headaches and breathing problems associated with low-level ozone, emitted into the office environment by laser printers and photocopiers; London Scientific Services says the ozone concentration safety limits, 0.1ppm, set by the Health and Safety Executive in Britain are far too lax compared to other countries and should ideally be halved in line with US regulations; eventually, says the LSS, printer manufacturers will be forced to produce their own ozone filters as they do already in countries like Denmark; with all the scares about air pollution these days, maybe a better solution would be if everyone in the office wore air-filter masks like cyclists and joggers do in the inner cities – or just switched off the air conditioning and opened the windows.