Ulaanbaatar residents are preparing for a two-week period of heavy cottonwood fluff dispersal, a natural annual occurrence typically concluding around June 30th. The fluff, released as the trees propagate, is currently blanketing streets and public spaces. City environmental authorities state there is no scientific evidence linking the fluff to allergies, but advise citizens to wear masks, glasses, and hats for comfort. The city administration is actively maintaining green spaces through daily watering and pruning to mitigate the fluff’s impact. Experts recommend tree shaping, removing seed clusters, and watering as effective reduction methods, explicitly warning against burning the fluff due to past incidents of vehicle fires. City officials are focused on managing the natural phenomenon and minimizing inconvenience to residents.