The air that we breathe is, quite literally, our life source. But it could also, quite possibly, be killing us. Air quality is becoming a modern crisis, with the World Health Organization (WHO) classifying air pollution as the world’s largest health risk, linking one in eight total global deaths to air pollution exposure, both indoor and out.

According to the U.S. Environmental Protection Agency, the air inside our homes is commonly five times more polluted than that of the outdoors, and in some cases, up to 10 times. So, what can you do to protect your health, and that of your family, from this silent killer lurking in your home? Detect and correct. Find out what is causing air pollution in your home and then take whatever steps you can to help correct or mitigate those causes. Here we’ll look at how you can achieve this.

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It’s hard to overstate the importance of having functioning, reliable smoke detectors in your home. From 2007 through 2011, almost a quarter of all home fire-related deaths in the US occurred in homes with nonworking smoke alarms. While any functioning smoke alarm will alert you to problems if you’re at home, a smart alarm can alert you anywhere your smartphone has an Internet connection. For our tests, a former firefighter installed every currently available smart smoke alarm in her own home, both hardwired versions and battery-powered models, to find the best one for keeping you informed about your house’s status, whether you’re home or away. After mounting them to ceilings and walls, blowing smoke at them, fiddling with their batteries and accompanying apps, and generally pushing their buttons, we found that the second-generation Nest Protect smoke and carbon monoxide alarm is the best smart smoke alarm.

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How to Monitor and Control Indoor Air Quality in Your Home | care2.com

The Best Smart Smoke Alarm | The Wirecutter