Brass and Copper Door Handles - For battling germs and bacteria?

Should you clean doorknobs? - Dirt2Tidy

CuGO Peel and Stick Antimicrobial Copper Door Handle Wrap : Everything Else

Copper Kills Germs - So Start Designing with It

What Type of Door Handle Has the Least Bacteria?

Copper Doorknobs as Germ Assassins - The New York Times

The surfaces that kill bacteria and viruses

Door handle and Anti-Microbial Copper Products

The Ninja in the Corner

Kwikset Halifax Interior Passage Door Handle, Lever for Closet and Hallway Doors, Reversible Non-Locking Handle Lever, Satin Nickel, with Microban Protection, Door Levers - Canada

This Is Why You Should Incorporate More Copper Into Your Home - Bob Vila

USE OF BRASS IN DOOR HANDLES FOR KILLING GERMS - Elegant Hardware

Brass,Pure Copper Door Handle Door Handle Pure Copper Coffee Ancient Modern Cabinet Drawers Cabinet Door Handle (Single Hole. 96mm, 128mm) : Everything Else