Yes they do.
I have used mine for 20 years now, and is looking in need of replacement!
B+W and Hoya Super HMC filters come with a warning never to use lens cleaning fluid. Maybe the chemical minds amongst us here on APUG can explain why (i.e. damage to coating). The lens pen is quite sufficient for most purposes. Otherwise, a breath on the glass and wipe with microfibre is fine.
A very big word of warning in regard to lens clothes. If you reuse these you can have trapped dust build up. This could scratch. An old guy told me 30 years ago and I still use tissues. Have fun
What grain............................................. ...............
Oh sorry, I forgot you don't shoot Large Format
Large format Pat.
Condensation from my breath and the end of my t-shirt, after brushing, blowing, and not worrying about it for quite some time. I only do this to take off finger oil smudges or fluid spots from water, drinks, sweat, etc. I never press anywhere near hard; just use more condensation for stubborn spots.
"Truth and love are my law and worship. Form and conscience are my manifestation and guide. Nature and peace are my shelter and companions. Order is my attitude. Beauty and perfection are my attack."