The G414 combines German-sourced activated carbon with Super HEPA rated at 99.99% — the highest particle capture efficiency in the 400 G series. It is built for individuals with MCS or severe chemical sensitivity who also have asthma, severe allergies, or fine particle reactivity as compounding conditions. German-sourced carbon provides a cleaner adsorption profile for those who react to standard carbon; the Super HEPA stage reduces fine particle breakthrough by 8× vs. standard HEPA, addressing both chemical and particle sensitivity simultaneously in a compact, all-metal unit.
| Spec | Detail |
|---|---|
| MSRP | $749.98 |
| Series | 400 |
| Designed For | Chemical sensitivity + enhanced particle capture — German carbon + Super HEPA |
| Carbon | German-sourced activated carbon (Blücher Technologies) |
| HEPA | Super HEPA, 99.99% @ 0.3 microns |
| UV-C | No |
| Airflow | 360 CFM |
| Fan Speeds | 3 |
| Coverage | ~1,000 sq ft |
| Housing | All-metal, pressure-sealed |
| Ozone | None |
| Ionizer | None |
| Warranty | 5 yr parts / 10 yr labor |
Pre-Filter — Captures large particles at intake. Protects carbon and HEPA stages. Replace annually.
Carbon Bed — German-Sourced Activated Carbon — Blücher Technologies spherical carbon with a purer manufacturing profile. Adsorbs VOCs, formaldehyde, benzene, toluene, xylene, chemical off-gassing compounds, and airborne chemical contaminants across the standard adsorption range. Specified for individuals whose chemical sensitivity extends to reactions from standard carbon manufacturing residuals.
Super HEPA — 99.99% @ 0.3 microns — Reduces fine particle breakthrough by 8× vs. standard HEPA 99.97%. Captures fine particulate, mold spores, pollen, pet dander, PM2.5, bacteria, and airborne viral particles with maximum compact-unit efficiency. Appropriate when particle sensitivity is a compounding concern alongside chemical sensitivity.
No pre-packaged replacement bundles for the 400 series. Replacement filters sold individually — contact Fresh Home Air for current filter pricing.
| Filter | Suggested Interval |
|---|---|
| Pre-Filter | Every 12 months |
| Carbon Filter | Every 2 years |
| Super HEPA Filter | Every 3–5 years |
| Zone | States | Rate |
|---|---|---|
| Zone 1 | ME, NH, VT, MA, NY, CT, RI, NJ | $51.95 |
| Zone 2 | MD, DE, WV, VA, OH, MI, DC, PA | $55.41 |
| Zone 3 | WI, IL, IN, KY, TN, NC, SC, GA | $60.16 |
| Zone 4 | FL, AL, ND, SD, MN, NE, IA, KS, MO, AR, LA, MS | $67.13 |
| Zone 5 | MT, WY, CO, TX | $73.77 |
| Zone 6 | WA, OR, CA, NV, ID, UT, AZ, NM | $78.72 |
Contact Fresh Home Air for 400 series chemical model filter shipping rates.
G414 vs. G400: The G400 uses standard HEPA 99.97%. The G414 upgrades to Super HEPA 99.99% — appropriate when fine particle sensitivity compounds the chemical sensitivity concern. G414 vs. G400 DLX: The G400 DLX upgrades the carbon stage to enhanced impregnated German carbon rather than the HEPA stage. If ammonia, chlorine, or reactive compounds are triggers, the G400 DLX is correct; if maximum particle capture alongside German carbon is the priority, the G414 is correct. G414 vs. G614: The G614 carries German-sourced carbon + Super HEPA at 560 CFM for 2,000 sq ft. The G414 is correctly sized for a single room.
*Manufactured in Montreal, Canada.*
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Comparison reflects Austin Air and Airpura products sold on freshhomeair.com vs. common consumer-grade air purifiers.
Everything you need to know before you buy.
Coverage varies by model — check the product specifications above for the rated room size. As a general rule, all units perform best when running below their rated capacity, which reduces noise and extends filter life.
Airpura filter life varies by model and usage. The carbon bed in this unit is rated to last 2–3 years under continuous use in a typical residential environment. HEPA and pre-filters have their own replacement schedules. Replacement filters are available on our filters page. Running the unit below its rated capacity meaningfully extends filter life.
Austin Air units have 4 speed settings. Speed 1 is quiet enough for sleeping. Speed 2 produces a consistent low hum that most people find unobtrusive. Speed 3 is suitable for daytime use. Speed 4 is intended for rapid air changes in emergency situations — wildfire smoke events, high-pollen days — not for standard overnight operation.
No. This unit uses only mechanical filtration — no ionizer, no UV, no ozone generator. It is safe for people with asthma, chemical sensitivity, and other respiratory conditions where ozone is a known irritant. This is a firm design standard across the entire Austin Air lineup.
Yes. Austin Air and Airpura units are used by patients with asthma, allergies, and chemical sensitivity. The True HEPA captures particle-class triggers and the activated carbon addresses VOCs, odors, and chemical compounds. No ionizer, no ozone — safe for respiratory conditions. For MCS specifically, the HealthMate Plus or Airpura C600 have the most relevant specifications.
Yes. Airpura units are designed for continuous residential operation. The steel-body construction and quality motor components are built for this use case. Most Airpura users run their units continuously at speed 2–3. Continuous operation at a moderate speed outperforms intermittent high-speed runs for maintaining consistent indoor air quality.
Airpura units ship directly from their facility in Montreal, Canada. Orders typically clear customs within 2–3 business days and arrive within 7–14 business days to most US addresses. You will receive a tracking number once your order ships. Import duties and customs fees are included in the product price — no surprise charges at delivery.
Airpura units carry a 5-year warranty on parts and labor. As an authorized Airpura dealer, Fresh Home Air supports the full manufacturer warranty. Contact us at support@freshhomeair.com for warranty service.
We accept returns within 30 days of delivery for units in original condition. Contact us at support@freshhomeair.com to initiate a return. Return shipping is the responsibility of the customer unless the unit arrives damaged or defective. Units that arrive damaged should be reported within 48 hours of delivery with photos.
Yes. No ionizer, no ozone, no UV exposure to room air. The Austin Air HealthMate was specifically studied at Johns Hopkins for use in children's homes — the clinical research involved families with young children. These units are safe for continuous operation in homes with children and pets. They are in fact commonly deployed exactly for this purpose.
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