Be sure your home has working smoke and carbon monoxide (CO) alarms. 

Using a 10-year battery-powered smoke alarms eliminates the need to change your batteries multiple times a year. 

If your alarm takes 9-V batteries, you should be changing your batteries every 6 months.

No matter if your alarm is hardwired, powered by 9V batteries or equipped with a 10-year Lithium battery, if you hear a chirp, you need to replace the batteries or the entire unit. Even if the alarm seems to be functioning well, smoke alarms should be retired after 10 years of use.

Smoke and co alarms should be installed per the manufacturers guidelines.