Airpura S400 and S414 air purifiers cover 1000 sq ft and traps formaldehydes, airborne chemicals, and VOCs with enhanced, impregnated, activated carbon as well as particles with its true metal-capped True HEPA filter. Some of the prime chemicals filtered which can cause moderate to severe health issues like headaches, drowsiness, and rhinitis are formaldehydes, ammonias, pesticides, benzene and toulene.
SuperGas carbon is a proprietary carbon designed for the widest spectrum of VOCs including but not limited to formaldehyde.
The Airpura S400 and S414 are compact, high-powered air purifiers built to reduce formaldehyde, airborne chemicals, VOCs, and odors along with fine particles. Each unit holds 8 lbs of Airpura's SuperGas carbon, a proprietary hybrid blend that combines the strengths of two Airpura carbons: it targets formaldehyde like the F-series and adsorbs a wide range of other VOCs and chemicals like the V-series. Formaldehyde, ammonia, pesticides, benzene, and toluene are some of the most common indoor chemicals linked to headaches, drowsiness, and rhinitis, and they're often released by new furniture, pressed wood, flooring, and other modern building materials. Both models cover up to 1,000 sq. ft. at 2 air changes per hour (ACH), depending on fan speed, and run as quiet as 32 dB on low.
Airpura S400: SuperGas Carbon with True HEPA
The S400 pairs 8 lbs of SuperGas carbon with a 40 sq. ft. medical-grade True HEPA filter that captures 99.97% of particles as small as 0.3 microns. It's a balanced choice for households that want strong formaldehyde and VOC reduction plus dependable protection from dust, pollen, pet dander, and mold spores.
Airpura S414: SuperGas Carbon with H14 Super HEPA
The S414 uses the same SuperGas carbon bed as the S400, but upgrades the particle filter to a 40 sq. ft. H14 Super HEPA that captures 99.99% of particles as small as 0.1 microns. We recommend the S414 for allergy and asthma sufferers, mold concerns, fine smoke particles such as wildfire smoke, and anyone with Multiple Chemical Sensitivities (MCS) who wants the highest level of particle capture alongside chemical reduction.
S400 vs. S414: What's the Difference?
The only difference between the two units is the particle filter. Everything else, including the all-metal housing, motor, pre-filter, and 8 lbs of SuperGas carbon, is the same.
S400 – Medical-grade True HEPA (99.97% at 0.3 microns). A great fit for formaldehyde and VOC concerns with typical household particles.
S414 – H14 Super HEPA (99.99% at 0.1 microns) for a higher level of particle capture. Best when fine particles matter as much as chemicals.
Both models use the same pre-filter and SuperGas carbon filter.
SuperGas Carbon: The Best of the V and F Series
Most carbon blends are built for one job. Airpura's F-series carbon is designed to target formaldehyde, while the enhanced carbon in the V400 & V414 covers a wide range of VOCs and specific chemicals. SuperGas is a hybrid of the two. It reduces formaldehyde like the F-series and also adsorbs the broader range of chemicals the V-series handles, making the S400 and S414 a strong all-around choice when you're dealing with formaldehyde plus other chemicals from new furniture, flooring, renovations, or nearby industry.
What's in SuperGas Carbon?
SuperGas is Airpura's proprietary carbon blend, so we can't share the exact ingredients or amounts. For our MCS clients, we can tell you that it contains potassium permanganate (a smaller percentage than the F400DLX), zeolite, and potassium iodide. If you're sensitive to any of these, please contact us before ordering so we can help you choose the right unit.
Balanced Protection Against Chemicals and Particles
Carbon and HEPA do different jobs. The carbon bed adsorbs formaldehyde, VOCs, gases, and odors, while the HEPA filter captures particles like mold spores, pollen, and pet dander. The S400 and S414 give you both in one compact unit. The variable-speed motor lets you set airflow for longer dwell time in the carbon bed, which improves VOC adsorption.
Sizing Your S400 / S414
At high speed, the S400 / S414 delivers about 2 air changes per hour in 1,000 sq. ft. with 8-foot ceilings. For heavier chemical loads, more than 1 air change is necessary, and our clients frequently aim for 5 or more ACH depending on square footage. At 5 ACH, the S400 / S414 is a good fit for rooms up to roughly 390 sq. ft. You can check your own room with our Air Changes per Hour Calculator. If your main concern is general particles and household odors rather than formaldehyde and specific chemicals, the Airpura R400 & R414 uses standard activated carbon at a lower price.
At a Glance
Coverage: Up to 1,000 sq. ft. at 2 ACH, depending on speed
S400 filtration: Medical-grade True HEPA, 99.97% at 0.3 microns
S414 filtration: H14 Super HEPA, 99.99% at 0.1 microns
HEPA surface: 40 sq. ft. (measured one side), 10 pleats per inch, closed-end metal caps (both models)
Warranty (residential): 5 years parts, 10 years labor
Warranty (industrial/commercial): 2 years parts, 5 years labor
Made in: Canada
Estimated Maintenance
Pre-filter
Clean every 3–6 months, change every 6–12 months
Carbon filter
Up to 2 years, depending on usage and contaminants
HEPA filter
Up to 5 years, depending on usage and contaminants
Note: Filter maintenance is based on standard usage and average contaminants. Depending on your situation, filters may need to be changed more or less often.
Specifications
The Airpura S400 and S414 are two separate units built on the same compact, all-metal platform. Both pair 8 lbs of Airpura's SuperGas carbon, a proprietary hybrid blend for formaldehyde, VOCs, specific chemicals, gases, and odors, with high-efficiency particle filtration. The difference is the particle filter: the S400 uses a True HEPA filter, and the S414 uses an upgraded H14 Super HEPA filter for a higher level of particle capture.
S400 vs. S414 at a Glance
Feature
Airpura S400
Airpura S414
Particle Filter
True HEPA, 99.97% at 0.3 microns
H14 Super HEPA, 99.99% at 0.1 microns
Best For
Formaldehyde, chemical, and VOC concerns with everyday dust, pollen, pet dander, and household particles
Formaldehyde, chemical, and VOC concerns plus allergies, asthma, mold, fine smoke particles, and Multiple Chemical Sensitivities (MCS)
Up to 1,000 sq. ft. at 2 air changes per hour (ACH), 8-ft ceilings, on high
Usage
Formaldehyde, VOCs, specific chemicals, gases, odors, and particulate contaminants
Dimensions
15.5" H x 12" W
Weight
23 lbs
Housing
All metal, oven-baked powder coat; white or black
Pre-Filter
361 sq. in. x 1" deep
HEPA Construction
40 sq. ft. filtration surface (measured one side), closed-end metal caps, 10 pleats per inch
Carbon Bed
8 lbs SuperGas enhanced impregnated carbon blend; 9.5" H x 8.5" OD x 6" ID, 3/4" deep
Carbon Blend Contents
Proprietary; contains potassium permanganate (less than the F400DLX), zeolite, and potassium iodide
Replacement Carbon Filter
Airpura S400 / S414 SuperGas Carbon Filter
Gaskets
Neoprene (as of 2021)
Fan/Motor CFM (Pre-Filters)
395 CFM
Delivered CFM (Post-Filters)
40 CFM low, 200 CFM medium, 260 CFM high
Fan Speed
Variable
Sound Level
32 dB low, 52 dB high (typical room level is 30 dB)
Voltage
Standard 110V
Power
69 watts max, 0.6 A
Casters
Not available
Certifications
ETL certified (conforms to CSA C22.2 No. 113, ANSI/UL 507); CARB certified for sale in California
Warranty – Residential
5 years parts, 10 years labor
Warranty – Industrial/Commercial
2 years parts, 5 years labor
Made In
Canada
Not sure how many air changes your space needs? For heavier chemical loads, more than 1 air change is necessary, and our clients frequently aim for 5 or more ACH depending on square footage and the contamination levels. Try our Air Changes per Hour Calculator or give us a call at (888) 231-1463.
If the S700 or S714 is too large for your space, the S400 or S414 is an excellent option.
Ideal for smaller spaces with:
Formaldehyde
Pressed wood
New furniture
New polyurethane floors
Renovations or remodeling with new carpet
Acid gases
Ammonia
Benzene
Toluene
Pesticides
Chlorine
PVC VOCs
Air fresheners and perfumes
Pet odors
Forest fires
Lead abatement
Volcanic gases (VOG)
Workplaces and industries that release chemicals from manufacturing processes
Homes near manufacturers that release chemicals from manufacturing processes
Individuals with Multiple Chemical Sensitivities (MCS) who tolerate small amounts of potassium iodide and potassium permanganate
Families who want clean, healthy air at home
Areas with poor outdoor air quality
Locations near agricultural operations
These are just some of the uses for this unit. Many contaminants are a good fit for more than one unit, so if you\'d like help finding the best one for your needs, please contact us.
Many factors come into play when choosing an air purifier, including the contaminants, coverage (enough air changes for the level of off-gassing), how quickly things are off-gassing, particulate matter, and your own sensitivities. The uses above are suggestions. Air purification isn\'t a black-and-white science, and things outside our control, like humidity or where the unit is placed, affect results. We wish there were one unit for every need, but there are always trade-offs, like sound versus power and budget versus filtration.
Don\'t hesitate to ask, especially if your contaminant levels are high.
Airpura Difference
Unique Features that make Airpura Different than Many Air Purifying Companies
All Metal Housing - No plastic vapors are emitted
Motor out of the air flow - Many air purifiers blow the clean air over the motor and pick up impurities
Electrical parts in a sealed chamber away from the airflow - Increases safety and prevents off-gassing
Fan/Motor CFM (PreFilters): 395 CFM
Delivered CFM (PostFilters): 40 CFM on low, 200 CFM on medium, and on high 260 CFM. CFM will vary with different configurations.
Variable speed control - Offers you flexibility
Proper contact times for effective filtration - Correctly calibrated air flow / bed depth for efficient adsorption
Pressure sealed filter chamber - Unique pressure seal on the filter chamber ensures all contaminants are filtered and cannot escape
Warranty on Residential Units: 5 yrs parts and 10 years labor
Warranty on Industrial/Commercial Units: 2 yrs parts and 5 years labor
Made In: Canada
Neoprene gasket seal the filter chamber - Maximize filtration with no rubber off-gassing
Clean modern appearance - Fits in any decor
Low noise level - 32 db on low at 6 ft and 52.0 on high
SuperiorDwell Time: The 395 CFM impeller/motor combined with the variable speed control and unimpeded airflow of the Airpura 400 series allows the airflow to be set precisely and achieve maximum results.
The 4-series allows our clients not only to enjoy the same high-quality filtration as the 7-series configurations but just in a smaller, compact unit.
Download the Airpura Activated Carbon Adsorption Ratings (PDF) – These ratings are for standard activated carbon against common chemicals and VOCs. Not every tested compound is listed, so if you have a specific concern, contact us and we\'ll check with Airpura\'s chemist. The S400 / S414 uses Airpura\'s SuperGas enhanced, impregnated carbon blend, so its adsorption ratings are higher than those shown. Other impregnated-carbon units include the V400, C400DLX, F400, and F400DLX.
Download the Airpura KCL Test Report (PDF) – Testing was performed on the Airpura 600 series with standard activated carbon. Units with impregnated carbon, including the S400 / S414, perform even better.
Estimated Maintenance
Pre-filter
Clean every 3–6 months, change every 6–12 months
Carbon filter
Up to 2 years, depending on usage and contaminants
HEPA filter
Up to 5 years, depending on usage and contaminants
UV lamp
Not applicable
Note: Filter maintenance is based on standard usage and average contaminants. Depending on your situation, filters may need to be changed more or less often.
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