If you ask what a mosquito’s worst enemy is, many people will think of sprays, coils, or electric devices first. But in real daily use, the most effective answer is often much simpler. A strong physical barrier is still one of the most reliable ways to keep mosquitoes away. It does not depend on smell, does not fade after a few hours, and does not need to be reapplied again and again. That is why mosquito nets remain a practical choice in homes, travel spaces, and seasonal markets.