To maintain your vacuum cleaner's effectiveness, follow these maintenance steps:    - Regularly empty the dustbin or replace the vacuum bag to prevent reduced suction.    - Clean or replace filters as the manufacturer recommends, typically every few months.    - Check and clean brush rolls and attachments for obstructions.    - Inspect and clean the vacuum's hose and nozzle for blockages.    - Ensure that all seals and gaskets are in good condition to prevent air leaks.