Brass Door Handles Disinfect

As many infections can be spread by door knobs it s interesting to note that a brass knob unvarnished will disinfect itself in about seven hours.

Brass door handles disinfect.

Brass knobs disinfect themselves after about eight hours compared to aluminum and stainless steel which never do. But now british scientists have found that handling those fixtures can actually disable their germ killing powers. For the case of a light switch make sure that it s turned off before you go. Brass and copper for example disinfect themselves of many germs within eight hours.

Anyone know how to fix or if it s permanently damaged. It s usually a dark bronze. Here are the steps on how to effectively disinfect door handles. Ability to disinfect themselves through oligodynamic effect.

If you are done with both of these let s go and disinfect the places. This effect was discovered by swiss botanist carl von nageli in the 1890 s and is known as the oligodynamic effect. Spray the disinfectant until the door handle is covered and wet. However door handles or knobs made of brass have been tested to have additional advantage beyond durability and beauty.

Apply the disinfectant with hand pump trigger spray. The cdc has offered advice on disinfecting doorknobs cabinet pulls light switches faucet handles and other frequently touched objects at home. Copper containing metals like brass have antibacterial properties a selling point for brass doorknobs sink handles and other fixtures in hospitals and schools. Bacteria sweat and copper.

I m bob hirshon and this is science update. The oligodynamic effect was discovered in 1893 by the swiss karl wilhelm von nägeli as a toxic effect of metal ions on living cells algae molds spores fungi viruses and microorganisms even in relatively low concentrations. There are some types of metals that are commonly used in doorknobs and handles that actually sterilize themselves over a certain amount of time. I was trying to disinfect my front door handle with lysol spray and it ended up becoming discolored and oxidized looking.

Clean the surface first with ordinary soap and water. Take the spray or the liquid cleaner in some cases and cover the knob or switch up with the cleaner. These tend to be knobs that contain copper like brass. The proper ratio is 5 tablespoons bleach per gallon of water or 4 teaspoons bleach per quart.

Brass can really disinfect itself certain metals have been found to inactivate bacteria including staphylococcus and e coli that can cause disease. Clean the door handle and remove dust and filth. Steel stainless steel and aluminum knobs will never disinfect themselves. Spray a liberal amount at least six to eight inches away from the surface.

A cleaning agent that has a disinfects or kill germs tag on its label. Then disinfect with a freshly made bleach solution.