How to keep latex balloons from deflating

To keep latex balloons from deflating, use a sealant like Hi-Float for helium balloons, inflate with a pump instead of your mouth to avoid moisture, and keep them in a cool, shaded indoor environment away from direct sunlight and extreme temperatures. Properly tying the knot and opting for larger, higher-quality balloons like TufTex, Sempertex, Or BelBal can also help.