If you are sandblasting your home's brick to remove paint, use a garden hose over the output to eliminate dust by 95%.
Source: From experience.
This is a page about cleaning soot from bricks. Soot on your fireplace bricks can be unsightly. In addition to a number of spray cleaners that can help remove the stains, you may find that a soot sponge does the job too.
Depending on what it is, washing a white substance off of brick may require a solvent of some sort. Cleaning a white substance off a brick patio can be a chore but with the right equipment and cleaners it can be done.
Moss and mold can discolor your patio, making it unattractive. This is a page about cleaning a red brick patio.
Dried masonry grout can be tough to remove. A product such as muriatic acid is often used. This is a page about removing dried grout from bricks.
This is a page about cleaning paint from brick. Bricks have a rough, porous surface that can make paint removal difficult. When removing paint you want to avoid damaging the bricks or the mortar.
