Moisten droppings with a water sprayer. Use a low pressure water jet. Clean excrement with soapy water and a mop or cloth. Disinfect affected surfaces with a bleach solution (1 part bleach to 9 parts water).
I've witnessed dozens of failed bat jobs over the years, and it's not pretty: dead bats, horrible smells, rabies vaccines, etc. Bat excrement is toxic and must therefore be cleaned from surfaces with an enzyme-based cleaner or enzymatic cleaners sold in the local hardware store. This problem is aggravated by bat droppings that rot and produce methane gas, which is a powerful decomposing agent. The spores of bat droppings are too fine and spread throughout the house, so a special HEPA filter is needed to clean the attic.
If you have a colony of a thousand bats in your attic, multiply between 20 and 30,000 by the number of days the bats stay there and, even though the excrement is small, you can end up accumulating a huge accumulation. In the worst case scenario I've ever seen, a colony of about 3,000 small brown bats went unnoticed in an attic in Pennsylvania for many years. There are also some parasites that live in bat droppings, such as roundworms and other intestinal worms, that could cause serious health problems for those who accidentally ingest them. How to remove bat faeces from concrete As has been said, each bat leaves between 20 and 30 droppings per day (depending on the time of year and the amount it eats, of course).
Although they prefer to hang upside down, bats quickly switch to an upright position and briefly hang on their wings and thumbs to relieve themselves. Piles of bat guano in a congested, confined place, such as an attic, can harbor dangerous histoplasmosis spores that can be transmitted through the air when altered. When it comes to getting bats out of the attic, one of the worst parts is probably cleaning the bat worm. The enzymes in the cleaner break down guano and bat urine, kill fungi and deodorize the attic space.
The bacteria in bat guano are not dangerous to bats, but it causes people to become ill with substances such as salmonella, E. coli and typhoid fever if they come into contact with the stool. The job of removing bats isn't easy: I trained for two years learning, and yet I needed a lot of work and practical training before I became competent.