Pure silver is not susceptible to tarnish in a pure oxygen environment. However the copper in 925 Sterling silver may react to the ozone and hydrogen sulfur in the air and cause sterling silver to tarnish.
Wear silver jewellery all the time, if you want to keep your sterling silver jewellery looking its best, the most effective way to do it is to take it out and wear it all the time. As long as you wipe it down when you’re done wearing it.
Perfumes, hair sprays and profuse sweating can also cause a quicker formation of tarnish.
Sterling silver consist of 92.5% silver and 7.5% of another metal, mainly copper that proved it’s high durability. These metals bring strength and an extra luster to the silver.
If any surface scratches or damage occurs, sterling silver can easily be polished back to its smooth shine.