pilot project: Hemp is grown at the Pang Da agricultural station in Samoeng district of Chiang Mai. As it turned out, the hemp fabric achieved the best results in filtering both pollutants, she said. Each surgical mask produced by the team is made of strips of hemp fabric measuring 1.5 inches wide and 15 inches long. The difference between hemp and marijuana plants, Ms Sarita said, is that the hemp stands far taller than the marijuana and also grows wider and larger leaves. There are currently two types of hemp being grown in the country, he said.

Source: Bangkok Post January 28, 2018 00:33 UTC