I got one of these: https://www.amazon.com/Friendly-Swede-Balaclava-Face-Mask/dp/B00M3NEBMK
The standard version because I don't bike if the weather is enough for a nordic/arctic one :-)
This is what I got and use. linky
I got this one and it seems to work out pretty well (note that the link is a 2-pack).
Just ordered these to protect myself from winter in the mountains...hoping they do their job!