PMC4207589_01
Occupational challenge test with angora wool.
CRII2012-358271.001.jpg
PMC4207589_01_CRII2012-358271.001.jpg
fig1
After the test with a control substance (talc powder) OCT was carried out by tipping angora wool into a 8 m3 ventilated room and assessing FEV1 for 8 hours (Figure 1).