Filterless. Washable. Reusable.

The air purifier with a washable filter you never replace

Q: Does AirSoap really have no filter to replace?

Correct. There is no disposable filter to buy. AirSoap captures particles on washable metal collection plates instead of a paper or fiber filter. You rinse the plates and reuse them indefinitely, so there is no required replacement filter cost for the life of the unit. An optional add-on carbon filter exists for extra odor control, but the core purifier needs no replacements.

Q: Is a filterless air purifier as good as a HEPA one?

For fine particles it can be better. HEPA filters are rated to about 0.3 microns; AirSoap's TPA technology captures particles down to 0.0146 microns, roughly 20 times finer, so it catches ultrafine particles a HEPA filter lets through. In testing it removed over 99.9% of airborne dust-mite allergens and 99% of PM2.5, all on washable plates instead of a throwaway filter.

Q: Do washable-filter air purifiers actually work?

Yes, when the technology behind them is sound. AirSoap electrically charges particles and collects them on charged plates, which is how it reaches the ultrafine range. The washable design is about maintenance and cost, and the TPA capture is what does the cleaning. Independent labs measured over 99.9% removal down to 14.6 nanometers.

Q: How much do you save with no replacement filters?

Replacement HEPA filters typically run on a 3 to 6 month cycle for the life of the unit, and many models add a carbon filter on top. AirSoap removes that recurring cost entirely. The washable plates are included and reused, so your only ongoing cost is rinsing them.

Q: Which AirSoap should I get?

The AirSoap X3 covers rooms up to 860 sq ft such as bedrooms, offices, and nurseries. For large or open living areas up to 1,600 sq ft, choose the AirSoap X5. Both use the same washable-plate TPA technology with no replacement filters.

Every other purifier makes you keep buying filters. AirSoap doesn't have one to buy. Its filterless TPA technology collects everything on washable plates — rinse them in the sink, slide them back in, and keep going. Cleaner air with zero replacement filters, ever.

Shop AirSoap How it works

$0 in replacement filters • captures to 0.0146µm (~20× finer than HEPA) • rinse & reuse the plates

The Short Answer

How does an air purifier with a washable filter work?

A traditional purifier forces air through a disposable mesh filter that fills up and gets thrown away. AirSoap works differently: its TPA (Two-Pole Active) technology gives airborne particles an electric charge, then collects them on a set of washable metal plates inside the unit. The plates are the "filter" — but instead of replacing them, you rinse them clean and put them back.

That's what makes it a true filterless air purifier: nothing to clog, nothing to re-buy, and no drop in airflow as it loads. And because the plates capture charged particles down to 0.0146 microns — about 20× finer than a HEPA filter — it catches the ultrafine particles a disposable filter lets slip through.

Wash, Don't Replace

Cleaning the filter takes about a minute

No tools, no cartridges, no subscription. The washable plates come out, rinse, and go back in.

Slide out the plates

The collection plates lift out of the unit in seconds — no filter housing to wrestle with, no mess.

Rinse them clean

Rinse the plates and the pre-screen under the tap. What the purifier captured washes straight down the drain.

Reuse, at full power

Let them dry, slide them back in, and performance resets to like-new — instead of fading like a loaded HEPA filter.

The Math

A HEPA purifier's real price is the filters

The sticker price is only the start with a filter-based purifier. Replacement filters are the recurring cost AirSoap removes entirely.

Traditional HEPA

Filters, every few months, forever

Most HEPA purifiers need a new filter every 3–6 months, and many pair it with a carbon filter on its own schedule. That's a recurring bill for the life of the unit — and if you skip it, airflow and cleaning performance quietly fall off.

AirSoap TPA

Rinse the plates. That's the whole cost.

AirSoap's washable plates are the filter, and they're reusable indefinitely. There is no required replacement filter to buy — ever — so over the years you own it, the ongoing cost is water and a minute of your time.

Required replacement filters

~1 min

To rinse the plates and reset performance

0.0146µm

Particle capture — ~20× finer than HEPA

Tested Performance

Filterless doesn't mean less clean

Independent lab testing of AirSoap's TPA technology — proof the washable plates clean as hard as they save.

Airborne pollutant / measure	Result
Particles down to 0.0146µm (14.6 nm)	>99.9%
Dust-mite allergens	>99.9%
Fine particles (PM2.5)	99%
Airborne mold	99.8%
Airborne bacteria (2 hr)	>92%
Particulate CADR, X3 (rated 200)	224.8 m³/h

Sources: TPA Filter Performance Data and white paper (third-party reference materials); particle-size floor from the National Center of Quality Supervision & Inspection for Air Conditioning Equipment; particulate CADR per CVC/Vkan (GB/T 18801-2015). Tests conducted on Airdog TPA units (the same hardware as AirSoap X3/X5) under laboratory conditions; real-world results vary by room size, runtime, and conditions.

Washable vs Disposable

Why a washable filter beats a disposable one

Same job — capture what's in your air — but only one of them keeps costing you money and fading over time.

Disposable HEPA filter

Loads up, slows down, gets tossed

A HEPA filter traps particles in a mesh rated to ~0.3 microns. As it fills, airflow drops and cleaning slows — so you replace it on a schedule and send the old one to landfill. Miss a change and a damp, loaded filter can even harbor mold.

AirSoap washable plates

Rinse, reuse, reset

AirSoap collects charged particles on washable plates that capture pieces ~20× finer than HEPA, down to 0.0146 microns. Rinse them and performance resets — no airflow drop-off, no replacement cost, and nothing headed for the trash.

Why Filterless Wins

Less cost, less waste, less hassle

♻

Nothing to re-buy

No replacement filters, no carbon cartridges on a schedule, no subscription. The washable plates are included and reusable for the life of the unit.

💧

Just rinse it

Cleaning is a rinse under the tap, not a trip to reorder a filter that fits. Performance comes back to full instead of slowly fading.

🌱

Less landfill

A washable filter means no stack of used HEPA filters in the trash every year — a cleaner choice for your home and for the bin.

One Purifier, Every Room

Filterless works everywhere you'd put a purifier

Because there's no filter to buy for each unit, a washable-filter purifier is the easy pick for rooms you run around the clock. Whatever you're trying to clear from the air, the same reusable-plate technology handles it.

Shopping by problem? See our air purifier for allergies, air purifier for dust, air purifier for pets, and air purifier for smoke pages.

Find Your Fit

The best filterless air purifier for your space

Two sizes, same washable-plate TPA technology, zero replacement filters either way.

UP TO 860 SQ FT

AirSoap X3

The filterless air purifier with a washable filter for bedrooms and single rooms — rinse the plates, never buy a filter.

$319.95 ~~$399.95~~Shop X3 →

UP TO 1,600 SQ FT

AirSoap X5

The large-room filterless air purifier with washable filters — one unit for a whole main floor, still no filters to replace.

$649.95Shop X5 →

FAQ

Washable filters and filterless purifiers, answered

Does AirSoap really have no filter to replace?+

Correct — there is no disposable filter to buy. AirSoap captures particles on washable metal collection plates instead of a paper or fiber filter. You rinse the plates and reuse them indefinitely, so there is no required replacement filter cost for the life of the unit. (An optional add-on carbon filter exists for extra odor control, but the core purifier needs no replacements.)

How do you clean a washable air purifier filter?+

Slide the collection plates out of the unit, rinse them and the pre-screen under the tap until clean, let them dry, and slide them back in. It takes about a minute and needs no tools or cleaning products. Doing it regularly keeps performance at full strength — unlike a disposable filter, which only degrades until you replace it.

Is a filterless air purifier as good as a HEPA one?+

For fine particles, it can be better. HEPA filters are rated to about 0.3 microns; AirSoap's TPA technology captures particles down to 0.0146 microns — roughly 20× finer — so it catches ultrafine particles a HEPA filter lets through. In testing it removed over 99.9% of airborne dust-mite allergens and 99% of PM2.5, all on washable plates instead of a throwaway filter.

Do washable-filter air purifiers actually work?+

Yes — when the technology behind them is sound. AirSoap doesn't just trap particles in a reusable mesh; it electrically charges them and collects them on charged plates, which is how it reaches the ultrafine range. The washable design is about maintenance and cost, and the TPA capture is what does the cleaning. Independent labs measured over 99.9% removal down to 14.6 nanometers.

How much do you save with no replacement filters?+

It depends on the HEPA purifier you're comparing against, but replacement filters typically run on a 3–6 month cycle for the life of the unit, and many models add a carbon filter on top. AirSoap removes that recurring cost entirely — the washable plates are included and reused, so your only ongoing "cost" is rinsing them.

Which AirSoap should I get?+

The AirSoap X3 covers rooms up to 860 sq ft — bedrooms, offices, nurseries. For large or open living areas up to 1,600 sq ft, choose the AirSoap X5. Both use the same washable-plate TPA technology with no replacement filters. Shopping for a specific problem? Start with our air purifier for allergies or air purifier for dust pages.

The last air purifier filter you'll ever (not) buy

Filterless TPA that captures the ultrafine particles HEPA misses, on washable plates you rinse and reuse — with zero replacement filters for the life of the unit.

Shop AirSoap Air Purifiers

Removal figures are from independent laboratory testing of TPA technology against aerosolized particulate under controlled conditions (TPA Filter Performance Data and white paper, third-party reference materials; particle-size floor from the National Center of Quality Supervision & Inspection for Air Conditioning Equipment; particulate CADR per CVC/Vkan, GB/T 18801-2015). Test units are Airdog TPA models, the same hardware as AirSoap X3/X5. Real-world performance varies with room size, runtime, and ventilation. Filter-cost comparisons are general and depend on the HEPA model compared against. AirSoap is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease.