Cockroaches are resilient insects and can survive in challenging conditions. However, it's essential to note that the exact survival time inside a running vacuum cleaner can vary depending on several factors, such as the type of vacuum cleaner, the cockroach's size and health, and the conditions inside the vacuum.
In a typical household vacuum cleaner, the suction and airflow can be quite powerful, making it difficult for a cockroach to escape. If a cockroach is sucked into the vacuum while it is running, it may get injured or killed due to the force of the suction and the debris inside the vacuum bag or canister.
Assuming a cockroach manages to survive the initial impact and avoid being crushed by debris, it could potentially live for a few hours to a couple of days inside the vacuum cleaner. The limited availability of air, darkness, and potential heat generated by the motor can create a harsh environment, reducing the cockroach's chances of survival.
However, it's essential to emphasize that using a vacuum cleaner to intentionally harm or kill animals, even pests like cockroaches, is not recommended and may be considered inhumane. If you encounter cockroaches or any other pests in your home, it's best to consider humane methods of pest control, such as using traps or seeking assistance from pest management professionals.