Although some epoxy paints have an offensive order, they will only off-gas while setting and not for more than 24 hours. The gasses should be exhausted from a properly ventilated building relatively quickly. It could be applied when people are not in the building or supply ducts could be temporarily covered and taped even if people are out of the building. It is not very practical to eliminate a good floor solution for a day or two inconvenience. Be sure to contract with an experienced application firm. Check references.