Oransi AirMend 270HB Air Purifier

A HEPA-only purifier assembled in Virginia. CARB lists it as mechanical and AHAM gives it a smoke CADR of 237; reviewers tested its smaller siblings. It has no carbon, is loud on high, and Oransi’s HEPA lab is unnamed.

Best for A bedroom, office or small living room up to about 355 sq ft, for a buyer who wants particles only, no ionizer, a US-assembled unit and a room rating anyone can look up, at a mid price.

Our rating: Good (4.0 of 5)
Price range: Mid-range
Verified marks: Listed by CARB as a mechanical air cleaner (AMD-270HB), AHAM Verifide CADR listing (smoke 237)
Size: One purifier for rooms up to about 355 sq ft by our rule (AHAM lists 367 sq ft); 7 lb; 12.9 x 14 x 8.35 in
Made in: Designed and assembled in Radford, Virginia (Oransi)

approx. $250

See it on Oransi’s site → (opens in a new tab)

We are not affiliated with Oransi. This link goes to the maker’s own page, with no tracking code. How we're funded.

Also sold at Amazon ($250), Walmart ($250) .

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How we evaluated it

How it scores Our rating, metric by metric Good, 4.0 of 5

Filtration 30% of the rating 4 of 5

AHAM lists a smoke CADR of 237 for a 367 sq ft room, but the 99.97% HEPA test was run by a lab Oransi does not name and the model has no carbon.
Adds nothing to the air 20% of the rating 5 of 5

CARB lists the AMD-270HB as mechanical (order G-25-017), Oransi lists no ionizer, UV, plasma or scent stage, and Modern Castle measured 0.0 ppm of ozone on the 200H.
Independent testing 20% of the rating 3 of 5

Live Science and Modern Castle, which take no money from Oransi, tested the 150H and 200H and not this model, while AHAM and CARB are certifications Oransi pays for.
Trust 10% of the rating 4 of 5

We found no recall, Prop 65 notice or lawsuit and Oransi publishes the criticisms of its machines, but its CEO chairs the AHAM council behind the CADR standard and its HEPA lab is unnamed.
Running cost & value 20% of the rating 4 of 5

At about $250 it costs about $1.05 per CFM of CADR, and one $49.84 filter a year brings five years to about $449, against $1.12 per CFM for the Coway Mighty2.

The rating, 4.0 of 5, is the weighted average of these scores. See how we rank air purifiers and our standard.

Where to buy Stores and the prices we saw 2 stores

Amazon (opens in a new tab) approx. $250. Model AMD-270HB, $249.84 on 2026-11-03, first listed 2025-03-09. The seller shown is Oransi, the maker, and the listing has only 3 ratings.
Walmart (opens in a new tab) approx. $250. $249.84 on 2026-11-03, sold and shipped by Oransi LLC, the maker, through Walmart’s marketplace.

Prices as we saw them on November 3, 2026. They change often. These links carry no tracking code and earn us nothing.

What it’s made of What touches your food, water, skin or air 2 materials

Two filters: a wire-mesh pre-filter (Oransi says to vacuum or wipe it, not soak it) and a pleated HEPA media filter (Oransi says fine glass and cellulose fibers with no chemical coating); no carbon
Plastic housing, a DC motor and a remote (resin types not stated); no ionizer, UV, plasma or scent stage, per Oransi

Who tested it What each test found, and who paid for it 5 tests

Paid certification AHAM Verifide (certification; Oransi pays)

Smoke CADR 237, dust 245, PM2.5 241 and pollen 243 for a 367 sq ft room, at 76.8 W on the smoke test. It tests how fast the machine clears smoke, dust and pollen at top speed with a new filter, not gases, ozone, noise or wear. AHAM is a trade association of appliance makers. Open ↗ (opens in a new tab)
Paid certification CARB (certification; Oransi pays the lab) January 2025

Listed as Mechanical, notified 2025-01-29 (order G-25-017). The earlier AMD-270H is also Mechanical (G-24-029). It tests ozone emission and says nothing about particle removal. Open ↗ (opens in a new tab)
Independent Live Science (earns affiliate commission; its own tests of the smaller AMD-150H) August 2024

With a particle monitor in a closed medium room, the 150H at top speed cleared 97% of 0.3 µm particles, and in a 10-match smoke test it removed 89% of 0.3 µm and 94% of 2.5 µm particles in 15 minutes. It measured 25 to 30 dB on the lowest speed and 62 dB at the top by phone app, heard some high-pitched screeching, and saw no reduction of strong odors. Not the 270HB. Open ↗ (opens in a new tab)
Independent Modern Castle (earns affiliate commission; its own tests of the AMD-200H) August 2025

Ran the 200H at top speed for 2 hours after burning incense in a room of about 14 by 10 ft: PM2.5 fell from 18.5 to 0.1 within an hour (a consumer meter, one run; the site labels the units ppm). An ozone meter read 0.0 ppm before and after an hour of running. Noise was 46.0 dB on low and 70.3 dB at top against 41.7 dB of room noise. Not the 270HB. Open ↗ (opens in a new tab)
Maker’s own test Oransi (maker)

Says the AirMend uses the same HEPA-rated media as its Mod filter, which an independent accredited lab tested as a finished filter at 99.97% from 0.1 to 0.3 µm under IEST-RP-CC007. It names no lab and publishes no report. Open ↗ (opens in a new tab)

Who paid, and why it matters

Independent The tester took no money from the maker for it: a consumer group, a journalist, a university or a regulator.
Paid certification An outside lab or certifier tested or listed it, and the maker paid for that.
Maker’s own test A lab report or certificate of analysis the maker commissioned and published.

A certification is a floor, not a verdict: it checks what its program checks and nothing else. We weigh tests by someone with no stake in the result most.

What people ask Worries raised online and elsewhere, and what we found 8 questions

Is it loud?: On high, yes. Oransi rates the 270HB at 30 to 62 dBA, and its reviews page (opens in a new tab) concedes the AirMend is not among the quietest at medium and higher speeds. Modern Castle (opens in a new tab) measured the 200H at 46.0 dB on low and 70.3 dB on high in a room with 41.7 dB of background noise. Live Science (opens in a new tab) heard a constant hum on the lowest speed of the 150H and some screeching. Oransi’s advice is to buy larger and run lower, although its product-page FAQ answers “Is the AirMend loud?” with “No” and likens the top speed to a running dishwasher.
Does it remove odors or fumes?: No. It has HEPA media only. Oransi’s own FAQ (opens in a new tab) says it does not work for strong odors and points to its TrueCarbon line, and Live Science found the smaller AirMend did not reduce strong odors. See our air purifier guide on why the amount of carbon matters.
Why does a purifier carry a California Prop 65 warning?: Oransi puts the warning on every product and says in its FAQ (opens in a new tab) that lead and cadmium in circuit-board solder are the kind of chemical behind it, and that the warning does not mean a product is unsafe. The California AG’s notice search (opens in a new tab) returned no 60-day notice naming Oransi on 2026-11-03, and CPSC’s recall search has none.
Does the maker sit on the body that sets the test?: Yes. Oransi’s testing page (opens in a new tab) is written by its CEO, who says he chairs the AHAM Air Cleaners Council, the industry group behind the CADR standard. Oransi states this openly. It also says independent labs run the CADR tests and AHAM retests certified models at random.
Is the 99.97% HEPA figure real?: It is Oransi’s claim. The product page (opens in a new tab) says the media was tested as a finished filter by an independent accredited lab under IEST-RP-CC007, but it names no lab and publishes no report. AHAM’s CADR, which counts leaks around the filter, is the number you can look up.
Did Wirecutter really measure 99% smoke reduction?: Oransi’s reviews page (opens in a new tab) says Wirecutter measured 99% smoke reduction at top speed on the AirMend Small Room, a different model. Wirecutter’s site is closed to our tools, so we could not read it and did not count it.
Does a new filter smell, and is the media free of PFAS?: Oransi says new HEPA media can smell papery for a day or two, and that it is glass and cellulose fiber with no chemical coating. We could not check the coating: we found no published PFAS test of purifier filter media from any maker. Reddit was closed to our tools, so we could not read owner threads.
Are there many owner reviews?: Not for this size. The Amazon listing (opens in a new tab), first listed in March 2025, shows 3 ratings, all five stars. The older AirMend sizes have more history.

Why we chose it What put it on our list 5 points

AHAM’s directory lists AMD-270HB at smoke CADR 237, dust 245, PM2.5 241 and pollen 243 for a 367 sq ft room, at 76.8 W. Our two-thirds rule gives about 355 sq ft.
CARB lists the model as Mechanical (notified 2025-01-29, order G-25-017). By CARB’s definition that means filtration only, with no ozone or ions. Oransi says it has no ionizer, UV, plasma or photocatalytic stage.
It is plain: a wire-mesh pre-filter you vacuum or wipe, one pleated HEPA media filter, a remote and seven fan speeds, with no app, sensor or scent. Oransi gives a 2-year warranty.
Running cost is published: the HEPA filter is $49.84 and rated 12 months, and the pre-filter lasts the life of the unit if it is cleaned.
Two independent reviewers tested its smaller siblings. Live Science’s particle monitor showed 97% of 0.3 µm particles gone at top speed on the AMD-150H, and Modern Castle measured 0.0 ppm of ozone on the AMD-200H.

Trade-offs What to weigh before you buy 6 points

It has HEPA media only, no carbon. Oransi’s FAQ says it does not work for strong odors, and Live Science found the smaller AirMend did not reduce them. For gases you need a carbon unit, and Oransi’s TrueCarbon line has no HEPA filter.
The reviews we could open covered the AMD-150H (Live Science, 2024) and the AMD-200H (Modern Castle, 2025), not the 270HB. We found no independent measurement of this model.
It is loud on high. Oransi rates it 30 to 62 dBA. Modern Castle measured 70.3 dB at top speed on the 200H in a room with 41.7 dB of background noise, and Live Science heard a constant hum on the lowest speed and some high-pitched screeching on the 150H.
The 99.97% HEPA figure rests on a test Oransi says an independent accredited lab ran on the same media used in its Mod filter. The lab is not named and no report is published.
Oransi’s CEO chairs the AHAM council that oversees the CADR standard its machines are certified to. Oransi says so on its own pages, and independent labs run the tests.
Oransi puts a California Prop 65 warning on every product, citing lead and cadmium in circuit-board solder. The California AG’s notice search shows no notice naming Oransi.

What to know Details worth knowing first

The AirMend 270HB is Oransi’s largest AirMend: a small box with a wire-mesh pre-filter, one pleated HEPA media filter and a remote. That is the design our air purifier guide points to, a HEPA filter for fine particles and nothing added to your air. CARB’s list carries the exact model number as a mechanical cleaner.

What sets it apart is that its room rating can be checked. AHAM’s directory lists a smoke CADR of 237, enough for about 355 sq ft, and Oransi publishes the filter price and the criticisms of its own machines. The independent reviews we found cover its smaller siblings, which cleared smoke fast and made no ozone. They also found it loud on high. Nobody independent has published a measurement of the 270HB itself.

Two limits. It has no carbon, so it will not clear cooking smells or fumes; see indoor pollutants and our look at whether purifiers improve health for what filters can and cannot do. And its 99.97% figure is Oransi’s, from a lab it does not name. At about $250 and $50 a year in filters, it costs about as much per unit of clean air as the Coway Mighty2, in a simpler machine.

What we checked Each claim, and how sure we are of it 5 checks

How Oransi AirMend 270HB Air Purifier measures up against our air purifiers criteria
What we checked	What we found
True HEPA (H13) Maker’s claim	Oransi says the media was tested at 99.97% for 0.1 to 0.3 µm under IEST-RP-CC007 by an independent accredited lab. The lab is not named, we found no report, and Oransi claims no EN 1822 class.
No ozone (CARB listing) Verified	CARB’s list has Oransi AMD-270HB as type Mechanical, notified 2025-01-29, order G-25-017 (and AMD-270H, order G-24-029). Oransi’s page also lists UL and CARB certification for AMD-270HB.
Right size (CADR) Verified	AHAM’s directory lists AMD-270HB: room size 367 sq ft; smoke CADR 237, dust 245, pollen 243, PM2.5 241. Our two-thirds rule: about 355 sq ft.
Carbon for gases Maker’s claim	None. HEPA media only; Oransi’s FAQ says the AirMend works only with its white HEPA filter, and carbon is sold in separate TrueCarbon units.
Running cost and noise Maker’s claim	HEPA filter $49.84, rated 12 months; the wire-mesh pre-filter is vacuumed or wiped and lasts the life of the unit if cared for. 75 W and 30 to 62 dBA per Oransi (AHAM measured 76.8 W). Reviewers measured 46.0 to 70.3 dB on the 200H.

What the labels mean

Verified We opened an independent record that confirms it: a certifier’s listing, a regulator’s list or a lab report. It is linked under Sources.
Maker’s claim The maker says so on its own page or label. We read it but found no independent record.
Not verified We looked and could not confirm it, or the maker does not say. Treat it as unknown.

Sources Where our facts come from 13 sources

Oransi AirMend 270HB product page: price, specs, filters and FAQ. Maker’s page. Price $249.84, 12-month filter, 2-year warranty and HEPA wording as seen 2026-11-03. Open ↗ (opens in a new tab)
Oransi AirMend air filter. Maker’s page. $49.84 for the replacement HEPA filter on 2026-11-03. Open ↗ (opens in a new tab)
Oransi: how air purifiers are tested. Maker’s page. Lists AHAM CADR by model, says every Oransi model is CARB certified with no ionizer, UV or plasma stage, and states that the CEO chairs the AHAM Air Cleaners Council. Open ↗ (opens in a new tab)
Oransi: air purifier reviews roundup. Maker’s page. Written by Oransi. Links the Wirecutter, Modern Castle and Live Science reviews and says plainly where reviewers found it noisy. Open ↗ (opens in a new tab)
Oransi California Prop 65 warning FAQ. Maker’s page. Open ↗ (opens in a new tab)
AHAM Verifide directory (search for Oransi). Certifier or regulator listing. A search tool with no link for a single listing. Its public API returns AMD-270HB with smoke CADR 237, dust 245, pollen 243, PM2.5 241, 367 sq ft and 76.8 W. Open ↗ (opens in a new tab)
CARB list of certified air cleaning devices (search for Oransi). Certifier or regulator listing. AMD-270HB is type Mechanical (order G-25-017). The list is one long table with no link for a single model. Open ↗ (opens in a new tab)
Live Science: Oransi AirMend AMD-150H review. Test report. Tests the smaller 150H, not the 270HB. Live Science earns affiliate commissions. Open ↗ (opens in a new tab)
Modern Castle: Oransi AirMend review. Test report. Tests the AMD-200H, updated 2025-08-01. Modern Castle earns affiliate commissions. Open ↗ (opens in a new tab)
Oransi AirMend 270HB on Amazon. Independent source. $249.84 on 2026-11-03, seller shown as Oransi, 3 ratings. Open ↗ (opens in a new tab)
Oransi AirMend 270HB on Walmart. Independent source. $249.84 on 2026-11-03, sold and shipped by Oransi LLC. Open ↗ (opens in a new tab)
California AG Prop 65 notice search: Oransi. Certifier or regulator listing. No matching records on 2026-11-03. Open ↗ (opens in a new tab)
CPSC recall search: Oransi. Certifier or regulator listing. No records on 2026-11-03. Open ↗ (opens in a new tab)

Alternatives Other options to compare 4 options

Levoit Eleva 300X About $130, AHAM smoke CADR 161 (about 240 sq ft), CARB mechanical, with a separate carbon filter. A smaller room at a lower price.
Coway Airmega Mighty2 About $270, with a smoke CADR of 240 that two independent testers measured at 237 to 260 cfm. HEPA and carbon are bonded in one filter. AHAM does not list Coway.
Oransi Mod+ About $700, AHAM smoke CADR 363, with HEPA and carbon in one filter, for rooms up to about 540 sq ft.
Oransi TrueCarbon 270C (opens in a new tab) About $450, with over 3 lb of carbon and no HEPA filter. A companion for odors and VOCs, not a particle filter.

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