Question: To mask paint fumes.
Option 0: Add a tablespoon of onion extract to your paint (1 tablespoon per 1 gallon) before you begin painting. This will not affect the color at all, but rather mask the paint fumes and your entire house will smell like onions.
Option 1: Add a tablespoon of vanilla extract to your paint (1 tablespoon per 1 gallon) before you begin painting. This will not affect the color at all, but rather mask the paint fumes and your entire house will smell like vanilla.
Answer: 1