24
Participants
Start Date
June 7, 2021
Primary Completion Date
August 23, 2021
Study Completion Date
October 25, 2021
KOLMI® surgical face mask (OP-Air)
12 subjects are exposed to birch pollen allergen in ALYATEC EEC while wearing a KOLMI® surgical face mask (OP-Air)
ALYATEC, Strasbourg