The answer to 'when to clean vacuum' is that you should clean your vacuum regularly, typically every 3-6 months, to maintain its performance and extend its lifespan. Regular cleaning helps remove dirt, dust, and debris that can clog the filters and reduce suction power. This ensures your vacuum continues to clean your home effectively.
It's also a good idea to check and clean the vacuum more frequently if you have pets or live in a particularly dusty environment. Signs that it's time to clean the vacuum include decreased suction, visible dirt and debris in the canister or bag, and a musty odor coming from the vacuum.