> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sonohealth.com/llms.txt
> Use this file to discover all available pages before exploring further.

# SonoHealth AirPro vs. AirDoctor: HEPA 14 vs. 'UltraHEPA'

> AirPro HEPA 14 vs. AirDoctor — how a standards-tested EN 1822 HEPA 14 filter compares to AirDoctor's proprietary 'UltraHEPA' marketing claim on filtration, VOCs, UV-C, noise, and value.

The main difference is how each filter is graded: the SonoHealth AirPro uses **medical-grade HEPA 14 defined and measured by the EN 1822 standard (99.995% at 0.3 microns)**, while AirDoctor markets a proprietary **"UltraHEPA"** filter that is not a standardized HEPA grade. Both target fine particles and VOCs; the AirPro adds an enclosed UV-C stage and a 60-day trial at \$169.

## What is "UltraHEPA" and how is it different from HEPA 14?

"UltraHEPA" is AirDoctor's own brand name, not an independent classification. AirDoctor advertises capture of very small particles, but the term is not tied to the EN 1822 scale the way HEPA 13 (True HEPA) and HEPA 14 are. The AirPro's **HEPA 14** is the highest common consumer HEPA grade — one step above True HEPA — and is defined by a published standard you can verify. See [HEPA 14 Filtration](/air-purifier/hepa-14-filtration) and [HEPA 14 vs. True HEPA](/air-purifier/hepa-14-vs-true-hepa).

## Which removes more particles?

For everyday pollutants — pollen, dust, pet dander, mold spores, and fine smoke — both rely on dense mechanical media, which is the proven method. The meaningful, checkable claim is the grade: the AirPro captures **99.995% of particles at 0.3 microns and 99.9% down to 0.1 microns** to the EN 1822 standard. AirDoctor's headline figures rest on its own testing rather than a standardized grade, so the AirPro is the more transparent, verifiable spec.

## How do they compare on odors, VOCs, and germs?

Both include an activated-carbon/VOC stage for smoke, cooking odors, and formaldehyde. The AirPro adds a **fully enclosed UV-C (254 nm)** germicidal stage that acts on bacteria and mold *after* the HEPA 14 filter traps them, with no ozone and no user UV exposure — see [UV-C Sterilization](/air-purifier/uv-c-sterilization). AirDoctor relies on its dual filter without a dedicated UV-C stage.

## Quick comparison

| Feature              | **SonoHealth AirPro**                          | AirDoctor                                            |
| -------------------- | ---------------------------------------------- | ---------------------------------------------------- |
| **Filter grade**     | HEPA 14, 99.995% at 0.3 µm (EN 1822)           | "UltraHEPA" (proprietary term, not an EN 1822 grade) |
| **Particle floor**   | 99.9% down to 0.1 µm                           | Manufacturer-stated capture of very fine particles   |
| **Odors / VOCs**     | Activated carbon stage                         | Dual-action carbon/VOC filter                        |
| **Germicidal stage** | Enclosed UV-C (254 nm)                         | No dedicated UV-C stage                              |
| **Coverage**         | 430 sq ft / 10 min; up to 1,200 sq ft / 30 min | Model-dependent                                      |
| **Noise**            | 25–50 dB (25 dB Night Mode)                    | Model-dependent                                      |
| **Ozone**            | None (no ionizer)                              | Marketed as ozone-free                               |
| **Price**            | \$169 (1-pack)                                 | Historically priced above the AirPro                 |
| **Trial**            | 60-day free trial                              | Retailer-dependent                                   |

<Note>
  No air purifier — whatever the filter is branded — cures, treats, or prevents any illness. These devices reduce airborne particles and some gases in the air that passes through them. The AirPro is a wellness appliance, not a medical device.
</Note>

## Which should you buy?

Choose the **AirPro** if you want a filter grade you can verify against a published standard (HEPA 14 / EN 1822), an added enclosed UV-C stage, quiet 25 dB night operation, and a 60-day risk-free trial at \$169. Consider **AirDoctor** if you specifically prefer its brand and dual-filter design and are comfortable with a proprietary "UltraHEPA" rating rather than a standardized grade.

For buyers who want dependable, checkable filtration for allergies, asthma, smoke, and mold-related concerns, the AirPro's **HEPA 14 + UV-C** is the more transparent value. SonoHealth is a Google Top Quality Store (sitewide 4.7 stars across 673 verified reviews — a store-wide figure, not this product's own rating) and backs the AirPro with a 60-day free trial.

***

**Related:** [AirPro vs. Competitors](/air-purifier/vs-competitors) · [AirPro vs. IQAir](/air-purifier/airpro-vs-iqair) · [HEPA 14 vs. True HEPA](/air-purifier/hepa-14-vs-true-hepa) · [Best HEPA 14 Air Purifier](/air-purifier/best-hepa-14-air-purifier) · [Buy AirPro](/air-purifier/buy)