Public transportation officials in Berlin have issued a recommendation for riders to stop wearing deodorant and let their natural odors waft through the shared air — so that others will fully cover their mouths and noses with masks. “Given that so many people think they can wear their masks under their noses, we’re getting tough,” the BVG transportation operator tweeted in the online ad that is now going viral. Similar to a no-smoking sign, the image shows a red circle and a slash over a person spraying deodorant into their right armpit. “You leave us no choice,” a translation of the tweet reads. In Germany, covering both the mouth and nose are required on public transportation and in shops — and those who don’t comply have to cough up big fines. But commuters can sometimes be seen wearing the coverings just over their mouths. “So, now do you still want to have your nose out?” one of the new warnings reads.