Oransi Mod+ Air Purifier

A HEPA and carbon purifier for large rooms, with an AHAM smoke CADR of 363 and a CARB mechanical listing. It costs about twice the Levoit Eleva 500X per unit of clean air, and its HEPA, formaldehyde and nanoparticle tests are Oransi’s own.

Best for A large living room or open plan up to about 540 sq ft, for a buyer who wants one machine with HEPA and carbon, a maker that publishes its own critics, and a three-year warranty.

Our rating: Good (3.8 of 5)
Price range: Premium
Verified marks: Listed by CARB as a mechanical air cleaner (MD02), AHAM Verifide CADR listing (smoke 363)
Size: One purifier for rooms up to about 540 sq ft (AHAM lists 563 sq ft); 23 lb
Made in: Designed in the USA, assembled in China (Oransi)

approx. $699

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 ($850), Walmart ($850) .

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How we evaluated it

How it scores Our rating, metric by metric Good, 3.8 of 5

Filtration 30% of the rating 4 of 5

AHAM lists a smoke CADR of 363 for a 563 sq ft room, but the 99.97% HEPA test was run by a lab Oransi does not name.
Adds nothing to the air 20% of the rating 5 of 5

CARB lists the MD02 as mechanical (order G-23-108) and Oransi states there is no ionizer, UV, plasma or scent stage.
Independent testing 20% of the rating 3 of 5

AHAM and CARB are certifications Oransi pays for, Modern Castle measured the Mod+ itself but with one incense run and no CADR, and Oransi’s HEPA, nanoparticle and formaldehyde figures come from reports it does not publish.
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 we could not match the Wirecutter quote on its page to the Wirecutter review it lists, and its CEO chairs the AHAM council behind the CADR standard.
Running cost & value 20% of the rating 3 of 5

At about $699 it costs about $1.93 per CFM, twice the Levoit 500X, and about $3.0 per CFM over five years with a $79.60 filter a year, against $2.4 for the 500X.

The rating, 3.8 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. $850. Sold and shipped by Oransi, the maker, through its Amazon storefront, at the $849.84 list price; Oransi’s own site showed $699 marked down from that.
Walmart (opens in a new tab) approx. $850. Model MD02. Sold and shipped by Oransi LLC, the maker, through Walmart’s marketplace, at the $849.84 list price.

Prices as we saw them on October 23, 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

One combined filter: mesh pre-filter, pleated HEPA media (Oransi says fine glass and cellulose fibers, with no chemical coating) and a blend of activated carbon and potassium permanganate (amounts not stated)
Housing, fan and glass touch interface (plastic types not stated); no ionizer, UV, plasma or scent stage, per Oransi

Who tested it What each test found, and who paid for it 4 tests

Paid certification AHAM Verifide (certification; Oransi pays)

Smoke CADR 363, dust 376, PM2.5 369, pollen 373 for a 563 sq ft room. It tests how fast the machine clears smoke, dust and pollen, not gases, ozone, noise or wear. AHAM is a trade association of appliance makers, and Oransi’s CEO chairs its air cleaner council. Open ↗ (opens in a new tab)
Paid certification CARB (certification; Oransi pays the lab) April 19, 2023

Listed as Mechanical (order G-23-108), so it passed the state’s ozone limit. It says nothing about particle removal. Open ↗ (opens in a new tab)
Independent Modern Castle (earns affiliate commission; its own tests; page updated 2025-02-25) February 2025

Ran the Mod+ at top speed for 2 hours after burning incense in a room of about 14 by 10 ft: PM2.5 fell from 90.3 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 65.8 dB at top speed against 43.0 dB of room noise. It reports no CADR. Open ↗ (opens in a new tab)
Maker’s own test Oransi (maker)

Says an independent accredited lab found 99.97% of 0.1 to 0.3 µm particles removed by the assembled filter (IEST-RP-CC007), 99.4% at 0.02 µm, and 76% of formaldehyde removed in a one-hour test. 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 6 questions

Do the reviews quoted on its page match this model?: The product page quotes the NY Times Wirecutter on the Mod+. Oransi’s own review roundup (opens in a new tab) says Wirecutter tested its AirMend Small Room, and lists CNET and Real Simple picks for the Mod+. We could not open Wirecutter’s page, so we did not count the quote.
Does the maker sit on the body that sets the test?: Yes. Founder and CEO Peter Mann chairs the AHAM Air Cleaners Council (opens in a new tab), the industry group that oversees the CADR standard Oransi’s machines are certified to. Oransi states this on its pages, and the testing page (opens in a new tab) is open about what each standard does not measure.
Is the 76% formaldehyde figure real?: We could not check it. Oransi’s testing page says Intertek ran the AHAM gas test (AC-4-2022) for its TrueCarbon line, not for the Mod+. Our guide notes that plain carbon adsorbs formaldehyde poorly, and potassium permanganate is what helps.
Why does a purifier carry a 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. The California AG’s notice search (opens in a new tab) shows no 60-day notice against Oransi.
Does a new filter smell?: Sometimes, by Reddit accounts. Oransi says threads report a papery smell from new HEPA media, that it comes from glass and cellulose fibers and not from a coating, and that it clears in a few days. One r/AirPurifiers user, quoted by RedditRecs (opens in a new tab), says a new Mod Plus filter off-gassed for about 36 hours, and adds that Winix and Coway filters smelled for a few days too. RedditRecs shows 75% positive from 4 users, a tiny sample.
Does the filter contain PFAS? Some HEPA media uses PTFE.: Oransi says its media is glass and cellulose with no chemical coating. We found no PFAS test of it, and none for purifier filter media from any maker.

Why we chose it What put it on our list 4 points

AHAM’s directory lists the MD02 (Mod+) at smoke CADR 363, dust 376, PM2.5 369 and pollen 373, for a 563 sq ft room. Our two-thirds rule gives about 540 sq ft.
CARB lists the model as Mechanical (notified 2023-04-19, order G-23-108). By CARB’s definition that means filtration only, with no ozone or ions.
One filter holds a pre-filter, HEPA media, activated carbon and potassium permanganate. Oransi says an independent accredited lab tested the assembled filter at full airflow to the IEST-RP-CC007 HEPA method and it captured 99.97% of particles from 0.1 to 0.3 µm. It names no lab.
Cost and noise are published: filter $79.60, rated 12 months; 20 to 56 dBA; 12 fan speeds from 92 to 375 CFM; a 3-year warranty.

Trade-offs What to weigh before you buy 6 points

It costs about $699 against about $260 for the Levoit Eleva 500X, for a smoke CADR of 363 against 301. That is about $1.93 per CFM against $0.86, and about $3.0 against $2.4 over five years with filters.
The Mod+ is assembled in China. Oransi’s AirMend and TrueCarbon lines are assembled in Virginia.
Carbon and HEPA are one filter, so both are replaced together each year. Oransi does not say how much carbon it holds, and its 76% formaldehyde figure comes with no report to open.
Oransi’s CEO chairs the AHAM council that oversees the CADR standard its machines are certified to. Oransi says so on its own pages. The independent labs still run the tests.
Oransi rates it 20 to 56 dBA with no distance stated. Modern Castle measured 65.8 dB at top speed with a sound meter, in a room with 43.0 dB of background noise, so expect it to be loud on its highest speeds.
Oransi puts a California Prop 65 warning on every product. Its FAQ cites lead and cadmium in circuit-board solder and says the warning does not mean a product is unsafe.

What to know Details worth knowing first

The Mod+ is Oransi’s biggest purifier: a single tall filter that combines a pre-filter, pleated HEPA media and a carbon blend, behind a quiet fan. It has nothing electronic in the airstream, which is what our air purifier guide wants, and CARB’s list confirms it.

Its strength is documentation. The AHAM listing gives a smoke CADR of 363, enough for a room of about 540 sq ft, and Oransi explains its methods in more detail than most makers. What it does not give is the lab behind its 99.97%, nanoparticle and formaldehyde figures. The only independent test of this model we found is one hands-on review, which measured it loud at top speed. Oransi’s CEO also chairs the AHAM council behind the CADR standard; Oransi says so openly.

You pay for all that. At about $699 it costs roughly twice as much per unit of clean air as the Levoit Eleva 500X, and it is assembled in China. For most rooms the cheaper models do the same job. Choose the Mod+ for a very large room, or if you want the carbon and the paperwork in one box. Treat the 76% formaldehyde figure with caution: standard carbon adsorbs formaldehyde poorly. See also formaldehyde.

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

How Oransi Mod+ Air Purifier measures up against our air purifiers criteria
What we checked	What we found
True HEPA Maker’s claim	Oransi’s FAQ says the assembled filter, tested at full rated airflow under IEST-RP-CC007 by an independent accredited lab, captured 99.97% of particles from 0.1 to 0.3 µm. The lab is not named and we found no report.
No ozone (CARB listing) Verified	CARB’s list has Oransi mod plus, model MD02, as type Mechanical, notified 2023-04-19, order G-23-108. Oransi’s page also quotes the order number.
Right size (CADR) Verified	AHAM’s directory lists Oransi MD02: room size 563 sq ft; smoke CADR 363, dust 376, PM2.5 369, pollen 373. Oransi’s page rounds dust to 375. Two-thirds rule: about 540 sq ft.
Carbon for gases Maker’s claim	The filter has an activated carbon and potassium permanganate blend. Oransi reports 76% formaldehyde removal in a one-hour test. The amount of carbon is not stated, and we found no gas test report for this model.
Running cost and noise Maker’s claim	Replacement filter $79.60 (listed at $99.50 on Oransi’s filter page), rated 12 months. 20 to 56 dBA and 93 W per Oransi; Modern Castle measured 65.8 dB at top speed.

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 12 sources

RedditRecs: Oransi Mod+ on Reddit. Independent source. A third-party site that summarizes Reddit comments with software and earns Amazon affiliate fees. The samples are small. Open ↗ (opens in a new tab)
Modern Castle: Oransi Mod+ review. Test report. Hands-on incense, ozone and noise tests of the Mod+. Modern Castle is supported by reader purchases through affiliate links. One run, no CADR. Open ↗ (opens in a new tab)
Oransi mod+ replacement filter page. Maker’s page. $79.60 (marked down from $99.50), $71.64 on subscription; life 12 months. Open ↗ (opens in a new tab)
Oransi Mod+ on Amazon (sold by Oransi). Independent source. $849.84 on 2026-10-23, shipped by Oransi. The listing quotes AHAM CADR 363 and CARB. Open ↗ (opens in a new tab)
Oransi Mod+ product page: price, CADR, filter and specs. Maker’s page. Price and claims as seen on 2026-10-23. Open ↗ (opens in a new tab)
Oransi: how air purifiers are tested. Maker’s page. Explains AHAM AC-1, AC-4-2022, CARB and ENERGY STAR and lists what each does not measure. Gas tests are listed for TrueCarbon only. Open ↗ (opens in a new tab)
Oransi: air purifier reviews roundup. Maker’s page. Written by Oransi. Lists the Wirecutter test as of the AirMend Small Room. Open ↗ (opens in a new tab)
Oransi: about Peter Mann. Maker’s page. States that he is founder and CEO of Oransi and chair of the AHAM Air Cleaners Council. Open ↗ (opens in a new tab)
CARB list of certified air cleaning devices (search for Oransi). Certifier or regulator listing. MD02 is type Mechanical (order G-23-108). The list is one long table with no link for a single model. 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. Searching Oransi shows MD02, 563 sq ft, smoke CADR 363. Open ↗ (opens in a new tab)
Oransi California Prop 65 warning FAQ. Maker’s page. Open ↗ (opens in a new tab)
California AG Prop 65 notice search: Oransi. Certifier or regulator listing. No matching records on 2026-10-23. CPSC’s recall search also returned none for Oransi. Open ↗ (opens in a new tab)

Alternatives Other options to compare 4 options

Levoit Eleva 500X About $260, AHAM smoke CADR 301 (about 450 sq ft) and a CARB mechanical listing. It is new: Amazon lists it as first available on 2026-10-18, and no one has tested it yet.
Coway Airmega Mighty2 About $270 and a smoke CADR of 240 that RTINGS and HouseFresh measured at 237 and 260 cfm. For rooms up to about 360 sq ft. CARB lists it as mechanical.
Oransi AirMend 270HB (opens in a new tab) About $250, assembled in the US, AHAM smoke CADR 237. It has HEPA media only, with no carbon.
Oransi TrueCarbon 200C (opens in a new tab) About $360, with 3.2 lb of carbon and no HEPA filter. Oransi reports Intertek gas tests for it. A companion for odors and VOCs, not a particle filter.

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