If you have a concrete basement floor that is unsealed, you may be wondering how to clean it. There are a few different ways to go about this, and the best way depends on the severity of the dirt and debris buildup. If the dirt is just a little bit dirty, you can use a broom and dustpan to sweep it all up. If there is more than just a little bit of dirt, you will need to use a vacuum cleaner with a hose attachment. Make sure to use the right type of vacuum cleaner for concrete; one that has a hose attachment is best. Once the floor is clean, you can apply an anti-slip agent like silicone or wax. This will help keep the floor from becoming slippery in wet or icy conditions. ..