Should you run an air purifier 24/7? For most homes, yes—running an air purifier 24/7 is worth it if it’s correctly sized for the room and you run it at a quiet “baseline” speed. Continuous operation keeps particles from building up again between sessions. The best approach is low/auto all day + short “boost” runs … Read more
Do activated carbon filters remove odors and VOCs? Yes—activated carbon can reduce some odors and some VOCs, sometimes dramatically. But it’s not a universal “smell/VOC vacuum.” Carbon works best when you have enough carbon (not a thin sheet), enough contact time, and you’re targeting the right gases—and it always has finite capacity (it fills up). … Read more
An air purifier can reduce airborne mold spores and particles, which may help symptoms and reduce how “stuffy” a room feels. Let’s cover what air purifiers can and can’t fix. They cannot fix the mold problem—because mold is a moisture problem first. If you don’t find and stop the water source, the musty smell comes … Read more
If your allergies spike at night, the winning setup is simple: a true HEPA air purifier sized by CADR for your bedroom, placed with clear airflow, run all night, plus one dust-mite move (encasements + hot-wash bedding). That combo hits the two biggest bedtime triggers: airborne particles (pollen/dander) and bedding allergens. This will help with … Read more
If you want the best air purifiers for wildfire smoke, then you need a portable air purifier with a true HEPA filter that’s properly sized by Smoke (tobacco) CADR—then you run it continuously in a closed “clean room.” That combo is what actually drops indoor smoke particles fast. If you do just one thing today: … Read more
The best air purifiers for pet hair and dander aren’t special pet-branded machines. It’s a purifier with (1) a washable pre-filter for hair, (2) true particle filtration (HEPA/HEPA-grade) for dander, (3) enough CADR for your room, and (4) real activated carbon if odors are part of your life. If you only fix one thing: stop … Read more
Want to know why your air purifier isn’t helping? When an air purifier “does nothing,” it’s almost always one of three issues: it’s undersized (CADR too low), it’s placed poorly, or it’s not being run/maintained correctly. The good news? Every one of those is fixable in under 15 minutes. This guide walks you through 7 … Read more
If you want an air purifier that actually feels effective, shop by CADR first. It’s the closest thing to a “speed rating” for how much clean air a purifier can deliver in a real room. Our CADR Explained Simply guide will show you exactly why this predicts performance so well. And here’s the key: filter … Read more
If you’re buying for allergies, asthma, or wildfire smoke, prioritize a purifier with a real HEPA filter and a strong CADR for your room size. “HEPA-type” can still help with dust, but it’s not certified to meet true HEPA requirements, so it’s a gamble when you need reliable relief. Here’s the simplest way to win … Read more
How often should you replace air purifier filters? Most homes should plan on replacing the main HEPA/HEPA-grade filter every 6–12 months… but that range is useless unless you factor in pets, smoke, and how hard you run the purifier. AHAM’s consumer guidance puts typical replacement in that 6–12 month window, while EPA’s guidance is simple: … Read more