The 7 Best Air Purifiers, Tested by BHG

Indoor air has a weird talent: it can look totally normal while quietly hosting a floating party of dust, pet dander, smoke,
pollen, and “whatever that smell is.” If you’ve ever woken up feeling like your sinuses ran a marathon overnightor you’ve
cooked salmon once and your living room kept the memory for three daysan air purifier starts to feel less like an appliance
and more like a peace treaty.

Better Homes & Gardens (BHG) has tested a whole lot of air purifiers (the kind of “a whole lot” that involves labs, meters,
and a brave willingness to release fake pet hair on purpose). In their testing, the best models didn’t just move air around
like a fancy fanthey meaningfully reduced particles and helped with everyday annoyances like dust and odors. This guide rounds
up seven standout, BHG-tested picks (including a bonus, splurge-worthy option from BHG’s Dyson testing) and explains how to
choose the right one without needing an engineering degree or a cape.

How BHG Tests Air Purifiers (and Why You Should Care)

“Tested” can mean anything from “I looked at the box” to “We ran controlled trials and took notes like it was a science fair.”
BHG’s approach is closer to the second one. Their process combines lab-style testingwhere purifiers are exposed to common
pollutants like smoke, dust, and pet-related messwith real home use over time, because the true test of any purifier is:
will you actually keep using it when life gets busy?

In the lab portion, performance is checked with an air-quality monitor that reads fine particles (often called PM2.5) and
sometimes chemicals known as VOCs (volatile organic compounds). Noise is measured on low and high settings, because “cleans
the air” is great, but “sounds like a leaf blower at 2 a.m.” is not. Then the purifiers go home with testers for weeks or months,
where usability mattersfilter changes, controls, lights, auto modes, and whether it fits into a room without screaming
“I AM AN APPLIANCE” at your decor.

Before You Buy: The 5 Things That Separate a Hero Purifier from a Loud Fan

1) Start with room size (and don’t shop by wishful thinking)

Most purifiers are rated for a maximum room size, but here’s the catch: that rating often assumes the purifier is running at a
higher speed. In real life, many people use a mid or sleep mode most of the time. Translation: if you’re between sizes, sizing up
usually makes the experience quieter and more effective.

2) CADR: the number that actually matters

CADR (Clean Air Delivery Rate) tells you how quickly a purifier can clean the air, usually measured for smoke, dust, and pollen.
A simple rule of thumb used by industry groups and public-health guidance is the “two-thirds rule”: aim for a smoke CADR that’s
at least two-thirds of your room’s square footage. Example: a 12 ft × 10 ft room is 120 sq ft; look for a smoke CADR around 80+
as a baseline. For smoke-heavy situations (like wildfire season), many experts recommend going even higher.

3) HEPA vs. “HEPA-like” vs. proprietary filters

True HEPA filtration is the gold standard for capturing tiny particles like pollen, fine dust, and smoke. Some brands use
“HEPA-type” language or proprietary filter tech; a model can still perform well, but you’ll want to lean on trusted testing
results (like BHG’s) and real-world performanceespecially if allergies or smoke are your main concerns.

4) Odors and VOCs need carbon (particles alone won’t fix “burnt toast forever”)

A particle filter (like HEPA) is great for dust and smoke particles, but odors and gases are a different beast. If you’re buying
for cooking smells, litter box vibes, or general “new paint / new furniture” air, choose a model with activated carbon or other
odor/VOC filtration. Just remember: carbon filters saturate over time and often need more frequent replacement than the main
particle filter.

5) Avoid ozone-generating “air cleaners”

Some devices marketed as ionizers or ozone generators can introduce ozone, a lung irritant, into indoor air. If your goal is to
breathe easier, adding an irritant to the mix is… not the vibe. Stick with mechanical filtration from reputable brands and
third-party testing.

The 7 Best Air Purifiers, Tested by BHG

Below are seven BHG-tested standouts. The first six come from BHG’s latest top air purifier testing, and the seventh is a
BHG-tested Dyson pick that’s especially appealing if you want a purifier that also works like a fan (and looks like it was
designed by someone who has met a modern living room before).

1) Best Overall: Levoit Core 400S Smart Air Purifier

If you want one purifier that can handle daily dust, periodic cooking chaos, and the mystery particles that show up when you
open a window for “fresh air,” the Levoit Core 400S Smart is BHG’s top overall pick. In controlled testing, it didn’t just reduce
contaminantsit pushed air quality past the starting baseline. That’s the purifier equivalent of not only cleaning your room, but
also alphabetizing your bookshelf while it’s at it.

Why it works: it pairs strong filtration with smart features that make it easy to live withapp connectivity, an air-quality
indicator, and a sleep mode for nighttime use. One practical note from testing: onboard readings can differ from a separate air
quality monitor, so treat the numbers as a “trend indicator,” not a courtroom-grade measurement.

• Great for: living rooms, open layouts, households that want “set it and forget it” automation
• Potential downside: like many smart devices, it’s only as delightful as your tolerance for apps and sensors

2) Best Budget: Coway Airmega 100

The Coway Airmega 100 is the friend who shows up early, does the job, and doesn’t demand a standing ovation. BHG liked it as a
beginner purifier because setup is straightforward and daily operation is simple. It’s compact enough for a bedroom, and many
people appreciate that it can run quietly at low speedsplus you can turn off lights for sleep, which is a small feature that
feels huge at 3 a.m.

The trade-off is common in budget models: the highest setting can be loud. But if you mostly rely on low or auto settings, it’s a
strong value choice for controlling bedroom dust and everyday odors.

• Great for: bedrooms, apartments, first-time purifier buyers
• Potential downside: higher fan speeds can be disruptive

3) Best for Large Rooms: PuroAir 240

Covering a big room usually comes with a big footprint and big noise. The PuroAir 240 surprised BHG by being relatively compact,
lightweight, and notably quiet for its coverage category. In testing, it improved how the room smelled and felt, and its effects
extended beyond the space right around the unitexactly what you want if your “large room” is actually three rooms that refuse to
stop being open-concept.

The main compromise is the information layer: there’s no app, so you won’t get detailed air-quality breakdowns or graphs.
It’s designed to do the job, not narrate it.

• Great for: master bedrooms, larger living spaces, “I just want it to work” households
• Potential downside: replacement filters may be easiest to source directly from the brand

4) Best for Small Rooms: Levoit Core 300S

A small-room purifier should be three things: effective, compact, and quiet enough that you don’t feel like you adopted a jet
engine. The Levoit Core 300S earned BHG’s nod for small rooms because it delivered a noticeable differenceless odor presence and
a reported drop in allergy annoyancewhile staying small enough to fit easily in bedrooms and offices.

It also includes smart functionality (app connectivity, scheduling) and a carbon component for odors, which is a big deal if the
“small room” is also the “gym corner,” “cat corner,” or “leftover curry corner.”

• Great for: bedrooms, nurseries, home offices, dorm-style spaces
• Potential downside: like many compact units, placement mattersgive it breathing room for airflow

5) Best for Pets: Rabbit Air A3

Pet ownership is basically a trade agreement: you get unconditional love, and your house gets a steady supply of dander and fuzz.
The Rabbit Air A3 is BHG’s best-for-pets pick, thanks to layered filtration and a pet-focused option designed to help trap dander.
It’s also a premium-feeling unit with smart features and sensors that respond to particles, odors, and light.

One nuance from testing: while it’s strong at improving overall air quality quickly, it may not be the best “hair catcher” if you
have a heavy shedder. The smarter approach for shedding is usually: manage hair with regular cleaning, then use the purifier for
the smaller, airborne stuff that vacuums don’t fully solve.

• Great for: pet dander sensitivity, odor-prone homes, shoppers who want a high-end unit
• Potential downside: premium price; not ideal as your only defense against tumbleweeds of fur

6) Best for Smoke: GermGuardian 4-in-1 Air Purifier

Smoke is tricky because it’s both particles (which HEPA handles well) and smell (where carbon matters). BHG’s best-for-smoke
pick, the GermGuardian 4-in-1, performed strongly against cooking odors and smoke and is sized to work in larger spaces.
It’s also Energy Star certified, which is helpful if you plan to run it often.

The main “keep in mind” is that it lacks an automatic setting, so you may need to adjust speeds manually. If you love automation,
that’s a ding. If you’re fine with pressing a button when you burn toast (again), it’s a very practical choice.

• Great for: kitchens, open living spaces, smoke-prone areas, odor control
• Potential downside: no auto mode; higher noise at stronger settings

7) Best Splurge: Dyson Purifier Cool TP07 (Purifier + Fan)

If you want your purifier to also be a fanand look like it belongs in a design magazine instead of a storage closetthe Dyson
Purifier Cool TP07 is BHG’s best overall Dyson pick. It’s tall and slim, helps move air like a fan, and uses sealed HEPA H13
filtration intended to keep captured particles contained.

The honest drawback (and BHG calls it out): this model is not focused on VOC filtration. So if your main issue is chemical odors,
new-paint fumes, or VOC-heavy environments, you may want a purifier with stronger carbon/VOC capabilities. But if you want
excellent particle filtration plus cooling airflow, it’s a compelling (if pricey) two-in-one.

• Great for: people who want one device for cooling + particle filtration, style-forward spaces
• Potential downside: premium price; limited VOC filtration for the cost

How to Use Your Air Purifier Like a Pro (Without Becoming One)

Placement: airflow is everything

Give your purifier space. If it’s shoved behind a chair like it’s in time-out, it can’t pull in dirty air and push out clean air
efficiently. A few inches from walls is usually a minimum; more is better. Put it where the problem is: bedrooms for sleep,
living rooms for daytime, near kitchens for cooking odors (but not so close that it gets splattered with oil like a sad robot).

Run it longer than you think

For most households, the best results come from running a purifier consistentlyespecially during allergy season, wildfire smoke
days, or whenever your home is closed up with windows shut. Many people prefer auto mode or a steady mid setting for daytime and
sleep mode overnight.

Filter maintenance (aka: the part nobody posts on Instagram)

Filters are consumables. A good rule of thumb used by testers is:

• HEPA / high-efficiency filters: often replaced every 6–12 months (check your model)
• Activated carbon filters: often replaced every 3–6 months, especially if odor control matters
• Pre-filters: vacuum or clean about monthly to extend filter life

Pro tip: a purifier with a filter-change indicator (or app alert) is basically your future self sending you a thank-you note.

FAQs: Quick Answers to the Questions Everyone Asks After They’ve Already Started Shopping

Do air purifiers help with allergies?

They can. A purifier with strong particle filtration can reduce airborne allergens like pollen, dust, and pet dander in the room
where it’s running. The biggest improvements usually happen when you pair purification with basic source control: regular
cleaning, managing pet bedding, and keeping windows closed during peak pollen hours.

Can a purifier remove odors completely?

It can help a lot, but “completely” depends on the source. A purifier with a meaningful carbon filter can reduce many odors,
especially cooking and pet smells. But if the source is constant (like heavy cooking, smoke indoors, or a litter box that needs
an intervention), you’ll get the best results by tackling the source while the purifier supports cleanup.

Is one purifier enough for a whole house?

Usually, one purifier is best thought of as “room-by-room.” If you want whole-home improvements, start with the rooms where you
spend the most time (bedrooms and main living areas). Many households find two smaller units outperform one unit placed far away
from where people actually breathe.

What’s better: a smart purifier or a simple one?

Smart purifiers are great if you want scheduling, remote control, and auto adjustments. Simple purifiers are great if you want
fewer apps in your life and you don’t mind pressing a button. The best choice is the one you’ll actually run consistently.

Real-World Experiences (500+ Words): What People Notice After the “New Appliance Glow” Wears Off

Air purifiers are funny because the best outcome is kind of… boring. Nobody wants “dramatic purifier vibes.” They want fewer
sneezes, less dust, and a home that doesn’t smell like last night’s fish tacos. Based on patterns reported in long-term testing
and common household use, here are the real-life moments where people tend to notice a purifier earning its keep.

Week 1: The dust reality check. Many people first notice the difference not in the air, but on surfaces.
A purifier won’t eliminate dusting (sorry), but it can reduce how quickly fine dust settlesespecially in bedrooms. If you’re
the kind of person who wipes a nightstand and immediately wonders if your home is generating dust as a hobby, running a purifier
near sleeping areas can make the dust cycle feel less relentless.

Allergy season: “My nose isn’t mad at me” moments. During spring or fall pollen spikes, users often report
that a purifier in the bedroom helps them wake up less congested. The key detail is consistency: running the purifier overnight
and keeping the bedroom relatively closed (door mostly shut, windows closed during peak pollen) tends to produce the clearest
difference. People who expect a purifier to fix allergy symptoms while windows are wide open may feel underwhelmed. Think of it
like air conditioning: it works best when you’re not also inviting the outdoors to move in.

Pets: less “pet smell,” not less pet. In pet homes, the most appreciated changes often involve odor and that
slightly “warm” air feeling that can happen when dander and fine dust build up. A purifier with carbon filtration can help keep
litter box smells and dog-bed funk from taking over a room. But shedding is still a cleaning problem more than a purification
problem. Many households get the best results by combining a purifier (for the airborne particles) with frequent vacuuming and
brushing (for the hair).

Cooking: the burnt-toast emergency response plan. The moment a purifier becomes a household favorite is often
the first time someone burns something. If you’ve got a model that can ramp up speed manually (or automatically), you may notice
the smell clears fasterespecially when paired with basic ventilation like a range hood. That said, even the best purifier can’t
fully defeat a kitchen smoke event if the source is still happening. The “sequence” that works best is: stop the smoke, ventilate
if outdoor air is safe, then let the purifier clean what’s left.

Wildfire smoke days: picking a “clean air” room. In smoke events, households often choose one roomusually a
bedroom or living roomto become the “clean air” zone. People tend to run a high-CADR purifier continuously in that space, keep
doors and windows closed, and avoid creating extra indoor pollution (like frying foods or burning candles). The biggest lesson is
that smoke management is about layers: purifier + closed space + thoughtful habits. When those layers work together, many users
report fewer irritated eyes and throats and a general sense that the air feels less harsh.

The long game: maintenance is the difference between “wow” and “why is this doing nothing?” Over months, the
purifier’s impact often tracks with filter upkeep. People who forget filter changes sometimes assume the purifier “stopped
working,” when it’s actually doing its best with a clogged filter. A pre-filter you can vacuum helps, and a clear filter-change
alert helps even more. In other words: the best purifier experience is the one that nudges you to maintain it before performance
drops.

Ultimately, the most consistent “real life” win is sleep. When a purifier is quiet enough to run overnight and strong enough to
keep bedroom air cleaner, people often describe the benefits in everyday termssleeping more comfortably, waking up less stuffed
up, and feeling like the room air is fresher. Not exactly a blockbuster movie plot, but honestly? That’s the dream.

Conclusion

The best air purifier isn’t necessarily the most expensive or the most futuristic. It’s the one that matches your room size,
targets your main problem (allergens, smoke, odors, or pets), and is easy enough to run consistently. If you want the strongest
all-around performer from BHG’s testing, the Levoit Core 400S Smart is the headline pick. If you want a budget-friendly starter,
Coway’s Airmega 100 is a smart move. For big spaces, the PuroAir 240 brings surprising quiet power. For small rooms, the Levoit
Core 300S makes a noticeable difference in a compact package. Pet homes may love the Rabbit Air A3’s layered approach, smoke-prone
kitchens may benefit from the GermGuardian 4-in-1, and design lovers who want a fan-purifier combo may find Dyson’s TP07 worth the
splurge. Clean air doesn’t have to be complicatedit just has to be consistent.