What is the best way to get spray paint off a brick building?

It is old style red brick. I would like to keep the old style look.What is the best way to get spray paint off a brick building?
Sand blastingWhat is the best way to get spray paint off a brick building?
i love that kind of work,first their ars severial ways .least exp. is presure cleaner now hold on do not attempt this your self un less u under stand the damage that can be done to brick with a p cleaner extreem care must as to only remove only the paint,nomatter what some bleeding will acore brick are made to do that i have found steam wroks better than cold also a paint remover could be applied .this depends on how mutch surfave area needs to be cleaned if its the whole houe their ars special removers for tha u can buy a small hand held staem cleaner like u see on tv they will work grt .also bepending on many facts and your ability you can rent a heat gun and scraper rember use the lightest cleaning so not to damage the look of the brick
Spray with a non acid type cleaner such as 409 or an oil solvent such as mineral spirits,and believe it or not, a cheap spray lubricant (WD40)is the best. As it dissolves go behind it and vacuum it out with a wet vac. If you have access to a power sprayer you can spray it off as it desolves. I dont suggest wipping it ,they would only spread your problem. Sand blasting will damage the brick.
there are cemicals for it, for example ';polyfilla';, its kind of acetone based jelly. you can also frye it with a heaters and then wash it off, or then get real dramatic, and sandblow it.
Muriotic acid (spelling?), same thing they use to clean swimming pools.
Power wash it or get your self some paint stripper like ';Strypeze'; it comes in a paste form which will hold to your wall, let it set for couple minutes and then use a wire brush, should come off with ease. Good luck, Les the painter
paint over it