Fellow beardy man! Just wear a cheap balaclava! Works perfectly and you don't have to look like some doofy edge lord.
As a bonus it really helps prevent helmet hair.
https://www.amazon.com/Core-Helmets-Unisex-Adult-Nylon-Balaclava/dp/B00S4RVHF8/ref=sr_1_140?keywords=balaclava&qid=1552781879&s=gateway&sr=8-140&th=1
https://www.ebay.com/itm/ULTRA-THIN-SKI-Full-FACE-MASK-GREAT-UNDER-A-BIKE-FOOTBALL-HELMET-BALACLAVA/252148768950?hash=item3ab53ce0b6:g:mFYAAOSw-jhUBJff:sc:USPSFirstClass!28034!US!-1
These are all I could find on Amazon and Ebay