How to clean door handles
Methods as below:
Align the suction tube of the vacuum cleaner with the keyhole of the door lock to suck out the dust inside.
Then wipe with lemon on the stained area.
Finally, wrap the doorknob with a clean rag and turn it in circles with your hands. You can see that the handle is as good as new.
When cleaning the door handle, you also need to pay attention: cut the lemon and put it for 1 minute before using it, the effect will be better; after cleaning, you can drop a little lubricating oil in the key cavity to prevent it from rusting and make the door easier to open. If there is black scum formed by oxidation on the metal handle, you can use a toothbrush dipped in dental blue to remove it.