-
If you’re referring to the viral “cut a lemon into four pieces, add salt, and leave it in the room” household hack, the idea is that the lemon and salt will help freshen the air and absorb unpleasant odors.There is some logic to the odor-control part, but claims that it purifies the air, kills airborne viruses, removes toxins, or disinfects a room aren’t supported by good evidence. Lemon’s fragrance can make a room smell fresher, while salt can absorb some moisture, but the effect is limited.
How to try it
- Cut one lemon into four wedges.
- Sprinkle a little salt over the cut surfaces.
- Place the pieces on a small plate or bowl.
- Leave them in the room for several hours or overnight.
- Replace them when the lemon dries out or develops mold.
For genuinely stale or musty air, ventilation and removing the source of the odor will work much better.
Also keep the lemon away from pets and children, and don’t leave it sitting around long enough to become moldy.
