What is a pet door and how does it work?

A pet door is a small opening in a door or wall designed to provide pets with independent access to the outdoors without human assistance. It offers convenience to both pets and their owners, allowing pets to go outside and come back inside whenever they please. The functionality of a pet door involves a simple and straightforward mechanism. Most pet doors consist of a flap made of durable materials like plastic or rubber, which can be pushed or pushed through by the pet. The flexibility of the flap ensures easy entry or exit for the pet while effectively keeping out wind, rain, and other unwanted elements. Some pet doors also come with additional features like automatic locking systems or electronic options, allowing selective access to specific pets or preventing strays from entering. Overall, pet doors promote independence, increased exercise, and better mental well-being for pets.