A mining safety expert says some equipment being flown in from Australia to Pike River rescuers is expensive but should become available in New Zealand.
Several kilometres of tube bundle from Queensland will be fed into the mine through a ventilation shaft so air quality can be monitored minute by minute.
Associate Professor David Cliff, from the University of Queensland, says the mining industry in New Zealand should be equipped with emergency tube bundle.
He says it is probably too expensive for a small mine, but the cost could be shared among mines.
Pike River Coal Mine chief executive Peter Whittall says tube bundle is not common in New Zealand, but would have been installed at Pike River as the mine expanded.
