Clean your smoke detectors often
Don't forget to clean your smoke detectors often. Dust and Dirt will impede the way they work and you can extend the lifespan of the detectors by taking care of them.
Smoke detectors should be cleaned periodically in order to extend their lifespan.
Each manufacturer is different so check the instructions.
Some smoke detectors can be cleaned out with canned air, others with a vacuum or special vacuum attachment.
Some can be taken apart and you can actually clean the screens separately and the chamber.
Normally it is not prudent to use chemicals or to get them wet. If in doubt buy a new smoke detector because it is recommended to replace them every 10 years.