Claim: Washing glasses with soap will prevent lenses from fogging whilst wearing a mask.
Fact-check: Washing your glasses with soap can help prevent fogging when wearing a mask - Full Fact
Verdict: this is true. the soap disrupts the surface tension which causes the condensation or "fog".
Organisation: Full Fact
Author: Rachael Krishna
Date published: 2020-07-30T00:00:00