Does the Beyond Guardian Air help with wildfire smoke and outdoor pollution?

Yes. Wildfire smoke and pollution are dominated by fine PM2.5 particulate — 2.5 microns and smaller. True HEPA captures 99.97% of particles at 0.3 microns, the hardest size to catch, and captures larger and smaller particles at even higher efficiency. On poor air-quality days, close the windows and run the unit to turn your home into a clean-air room.

What does 0.3 microns mean?

A micron is one-millionth of a meter; a human hair is about 50 to 70 microns. HEPA is rated at 0.3 microns because it is the hardest size to trap — particles larger and smaller are caught at higher efficiency, so 99.97% is the worst case, not the best.

Which model is right for my space?

Beyond Guardian Air covers up to 2,500 sq. ft. (whole home), Pure & Clean up to 1,000 sq. ft. (main living area), Beyond Guardian Angel is a portable true-HEPA unit up to 1,000 sq. ft., and the Mobile unit brings ActivePure to your car, desk or travels.

Aerus Beyond Guardian Air | Whole-Home Air Purifier for Smoke, Pollution & Allergens | Pure H2O

Whole-Home Air Purification

Clean, Protected Air Indoors — Even When the Air Outside Isn't

Name: Aerus Beyond Guardian Air
Brand: Aerus
Availability: InStock

ActivePure + True HEPA captures 99.97% of particles at 0.3 microns — wildfire smoke, pollution, pollen and pathogens.

Talk to an Air Quality Expert (614) 953-6010

Certified Space Technology ENERGY STAR Ozone-Free

Aerus Beyond Guardian Air whole-home air purifier

Beyond Guardian Air · up to 2,500 sq. ft.

99.97%

Captured at 0.3 Micron

2,500

Sq. Ft. Coverage

4.9★

Google Rating

25,000+

Families Protected

Ozone-Free

Safe for Bedrooms

When You Need to Stay Indoors

The Days You Close the Windows Are When Your Air Matters Most

Wildfire smoke, ozone alerts, pollution and pollen push everyone inside — but sealing up only helps if the air indoors is actually clean.

Wildfire SmokeUltra-fine PM2.5 that slips past windows and furnace filters — captured by True HEPA.

Traffic & PollutionCombustion particles and VOCs pulled from the air by HEPA and carbon.

Allergy SeasonContinuous clearing of pollen, mold spores and dust.

Cold & Flu SeasonActivePure works on air and surfaces around the clock.

Your indoor air, when the AQI climbs

Outdoors, smoke event — hazardous particulate

Indoors, windows open — smoke follows you in

Indoors, sealed + Guardian Air — a clean-air room

What It Filters Out

One System Against the Full Range of Indoor Air Pollutants

Smoke & PM2.5

Viruses & Bacteria

Mold & Fungi

Pollen & Allergens

Pet Dander

Odors & Smoke Smell

VOCs & Chemicals

Dust & Fine Debris

The Micron Question

How Small Is 0.3 Microns — And Why It's the Number That Matters

0.3 microns is the hardest particle size to catch, so the 99.97% rating is the worst case — smaller and larger particles are trapped at even higher efficiency.

Particle Size, To Scale

Human hair~60 microns

Dust & pollen5–10 microns

Wildfire smoke (PM2.5)≤ 2.5 microns

HEPA rated size0.3 microns

Many viruses~0.1 microns

The 0.3 micron mark is the hardest size for any filter to trap. Wildfire smoke and pollution sit right in the danger zone — and True HEPA captures them.

True HEPA does the heavy filtering99.97% of particles at 0.3 microns trapped as air passes through.

ActivePure reaches what filters can'tReduces up to 99.9% of many airborne and surface contaminants throughout the room — not just the air drawn in.

Inside the System

Five Technologies, Working Together

ActivePure

The proprietary core, with roots in NASA research.

True HEPA

99.97% of particles at 0.3 microns.

Photocatalytic Oxidation

UV light breaks down contaminants and odors.

Activated Carbon

Adsorbs odors, smoke smell and VOCs.

Real-Time Sensor

Reads your air and adjusts automatically.

Ozone-Free

Safe to run continuously in occupied rooms.

Certified & Verified

Backed by Certifications, Not Just Claims

The seals you can check for yourself — independently recognized technology.

Certified Space Technology Carries the Space Foundation seal — roots in NASA air-purification research.

ActivePure Technology Reduces up to 99.9% of many common airborne and surface contaminants.

Find Your Fit

One Family of Purifiers — Sized to Your Space

From a whole-home flagship to a personal unit for your car — not sure which fits? We'll help you match it.

Flagship

Beyond Guardian Air

Up to 2,500 sq. ft.

The whole-home flagship — full five-technology system with real-time air monitoring.

Pure & Clean

Up to 1,000 sq. ft.

ActivePure, HEPA and carbon for a main living area or large room.

Beyond Guardian Angel

Up to 1,000 sq. ft. · Portable

Portable 5-stage true HEPA with ionization and aromatherapy — apartments, bedrooms, offices.

Bonus

Mobile

Personal · On the Go

ActivePure protection for your car, desk or travels — clean air anywhere.

Feature	Guardian Air	Pure & Clean	Guardian Angel	Mobile
Coverage	Up to 2,500 sq. ft.	Up to 1,000 sq. ft.	Up to 1,000 sq. ft.	Personal space
Best for	Whole home	Main living area	Apartments, offices	Car, desk, travel
ActivePure	Yes	Yes	Yes	Yes
True HEPA	Yes	Yes	Yes	—
Activated carbon	Yes	Yes	Yes	—
Portable	—	—	Yes	Yes
Ozone-free	Yes	Yes	Yes	Yes

Why Pure H2O

Ohio's Local Air & Water Experts Since 1999

We Match the Unit to Your HomeSquare footage, allergies, pets, proximity to traffic — the right model, not the biggest sale.

Authorized Aerus DistributorGenuine equipment and proper setup — not a marketplace knockoff.

Local Service After the SaleFilters and questions go to the same Ohio team — not an 800 number.

Pure H2O technician servicing home equipment

4.9

★★★★★

Trusted by 25,000+ Ohio families

"During the smoke last summer we couldn't open the windows for days. With the Guardian Air running, the whole house smelled clean and my son's asthma stayed quiet."

— Columbus Homeowner

Common Questions

Straight Answers About Clean Indoor Air

Yes. Smoke and pollution are mostly fine PM2.5 particulate — 2.5 microns and smaller. True HEPA captures 99.97% of particles at 0.3 microns, the hardest size to catch, plus larger and smaller particles at even higher efficiency. Close the windows, run the unit, and your home becomes a clean-air room.

A micron is one-millionth of a meter; a human hair is roughly 50–70 microns. HEPA is rated at 0.3 microns because it's the hardest size to trap — particles larger and smaller are caught at higher efficiency, so 99.97% is the worst case.

Yes. Unlike some ionizing cleaners that create ozone, the Beyond Guardian Air is engineered for ozone-free operation — safe to run continuously in bedrooms and nurseries.

Guardian Air covers up to 2,500 sq. ft. (whole home), Pure & Clean up to 1,000 sq. ft. (main living area), Guardian Angel is a portable true-HEPA unit up to 1,000 sq. ft., and Mobile brings ActivePure to your car or desk. A quick chat about your space is the fastest way to choose.

Yes — the HEPA and carbon media are replaced periodically and the ActivePure cell is serviced on a schedule. The units include maintenance reminders, and as your local dealer we handle service and parts.

No Obligation — Just Sound Advice

Ready to Take Control of Your Air?

Talk to a local Ohio air quality expert about which Aerus purifier fits your space and your family.

Talk to an Air Quality Expert (614) 953-6010

★★★★★ 4.9 Google Certified Space Technology Ozone-Free Columbus • Cincinnati • Dayton