Which door type is specifically designed to allow airflow while blocking insects?

The screen door is specifically designed to allow airflow while simultaneously blocking insects. This type of door features a mesh screen that permits fresh air to enter a space while keeping unwanted pests such as flies and mosquitoes outside.

Screen doors are commonly used in conjunction with exterior doors, adding ventilation without compromising on comfort or hygiene. They can also enhance the usability of a living space by providing a barrier that maintains an open feel while protecting against bugs.

The other options do not fulfill the requirement of allowing airflow while blocking insects effectively. For instance, a French door is known for its aesthetic appeal and ability to bring light into a room but lacks insect protection and airflow management. A storm door is primarily used to protect against harsh weather and typically does not focus on insect prevention or allowing free airflow. Panel doors are solid and do not offer screens or mesh, thus blocking airflow completely.