Katmandu, Nepal is choking under smog levels five times worse than what caused Paris to ban cars. In response to the crisis, HealthWay was chosen to provide high-efficiency air cleaners to the UN World Food Program offices in Katmandu, Nepal. Independent, third-party test data shows the company’s patented DFS technology can capture particles as small as 0.007 micron (ultrafine) and prevent microbial growth in the filter.