PM2.5 sounds technical, but it’s really just a way of describing tiny particles in the air—so small that 30 of them could fit across the width of a single human hair. Because they’re so small, your nose and throat can’t filter them out. They go straight into your lungs… and from there, into your bloodstream.

 

So who should care about PM2.5 at home? Pretty much anyone who breathes, but especially:

• Kids – Their lungs are still developing, and they breathe in more air pound-for-pound than adults.

• Grandparents (and older adults) – They’re more likely to have heart or breathing issues that PM2.5 can make worse.

• Anyone with asthma, allergies, or heart problems – These particles are known to trigger flare-ups and breathing difficulties.

• Expectant moms – Studies show PM2.5 can affect pregnancy outcomes.

• Active people – If you run, bike, or exercise at home, you’re breathing more deeply and pulling these particles further into your lungs.

 

The tricky part? PM2.5 isn’t just an outdoor problem. Every time your home “breathes” (through leaks, open doors, fans, or your HVAC system), outdoor air comes in. That means wildfire smoke, car exhaust, and industrial pollution can end up inside your living room. On top of that, indoor sources like cooking, candles, or fireplaces add even more PM2.5.

 

Clean, filtered air at home isn’t a luxury—it’s protection for your family’s health today and for the years ahead.