3 ms·
OK, so for some surfaces 4 hours wouldn't be good enough, but for things like letterboxes, door handles & light switches that aren't used too frequently, it cou
by vcdimension 7y ago
OK, so for some surfaces 4 hours wouldn't be good enough, but for things like letterboxes, door handles & light switches that aren't used too frequently, it could make a difference, and for minimal cost.
For example, a postman has to touch many letterboxes on his/her daily rounds, but only once per day.
- 9HZZRfNlpR 7y agoIf I'm not mistakes door handles were copper for that reason. Anything electrical we want to avoid conductive materials such as a copper.