Brass Doorknobs Automatically Disinfect

This is why people often opt for unvarnished brass knobs over aluminum or stainless steel doorknobs they simply don t require as much cleaning and disinfecting.

Brass doorknobs automatically 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. Steel stainless steel and aluminum knobs will never disinfect themselves. Save my name email and website in this browser for the next time i comment. We ll grab the handles in our home in public restrooms in the freezer section at costco in our kids schools and the list goes on.

However some materials e g. Brass and copper for example disinfect themselves of many germs within eight hours. Brass has also been found to destroy fungi by 99 within six hours according to a university of southampton study. The exact mechanism is not known but it is commonly thought to be via the oligodynamic effect or perhaps by some other electrostatic effect.

How many hands touch those doorknobs and handles each day. Brass knobs disinfect themselves after about eight hours compared to aluminum and stainless steel which never do. These tend to be knobs that contain copper like brass. Brass doorknobs disinfect themselves wtf fun facts.

The effect is important in hospitals and useful in any building 3 curionic. Frequently used doorknobs would be polished by the hands using them infrequently used doorknobs would be less likely to host anything you d need to worry about. Level 2 1 point 6 years ago. This effect was discovered by swiss botanist carl von nageli in the 1890 s and is known as the oligodynamic effect.

Copper containing metals like brass have antibacterial properties a selling point for brass doorknobs sink handles and other fixtures in hospitals and schools. But now british scientists have found that handling those fixtures can actually disable their germ killing powers. Do brass doorknobs automatically disinfect themselves. Brass is a copper alloy and copper alloys like brass are well known to be antibacterial.

For example brass doorknobs have been found to automatically disinfect themselves within eight hours and are often selected as a sanitary option for healthcare facilities. Brass doorknobs disinfect themselves in about eight hours while stainless steel and aluminium knobs never do. Many infections can be spread by doorknobs. Brass copper and silver are slowly poisonous to many germs.

Unfortunately you can t control how often public spaces are cleaned but you can still disinfect the doorknobs.