Headband buffs - I use them for working out but they double as a mask in a pinch. https://www.amazon.com/VANCROWN-Headwear-Headbands-Warmer-9PC-Paisley/dp/B077SQ9NLY/ref=mp_s_a_1_2?dchild=1&qid=1590795477&sr=8-2&srs=20391501011