B ecause roaches have a spiracle respiratory system, Some roach species can remain underwater for 15 minutes without a problem. German roaches can live after being submerged in COLD water for 15 minutes, but die faster if the water is warm. American roaches, who LOVE sewer systems, can also survive after being submerged for several minutes.
A cockroach can hold its breath for 40 minutes, and can even survive being submerged under water for half an hour. They hold their breath often to help regulate their loss of water. Cockroaches can run up to three miles in an hour, which means they can spread germs and bacteria throughout a home very quickly.