Airpura R400 & R414 Air Purifier: True HEPA or H14 Super HEPA
Model: R400 / R414
SKU: arp-ap-us1621
CARB Certified: Approved for sale to California
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The Airpura R400 air purifier is a compact, high-powered unit ideal for bedrooms, nurseries, offices, and other small spaces, thanks to its strong performance and low sound levels. It pairs a True HEPA filter with 8 lbs of activated carbon to target airborne particles, VOCs, gases, and odors, with the optional R414 H14 Super HEPA upgrade available for even finer filtration.
The Airpura R400 air purifier and the Airpura R414 air purifier are two compact, high-powered models built for bedrooms, nurseries, home offices, and other smaller spaces. Each one pairs a HEPA filter with 8 lbs of activated carbon, so it captures airborne particles and also adsorbs the VOCs, chemicals, gases, and odors that HEPA-only purifiers miss. Despite their small footprint, both models share the same quality construction as Airpura's larger R600 and R700 units, and they run quietly enough for overnight use.
Airpura R400 Air Purifier: Everyday Protection
The Airpura R400 air purifier is built around a medical-grade True HEPA filter that traps 99.97% of particles as small as 0.3 microns. It's an excellent everyday choice for homes, bedrooms, nurseries, and offices where you want reliable protection from dust, pollen, pet dander, mold spores, and common household odors.
Airpura R414 Air Purifier: H14 Super HEPA for Finer Particles
The Airpura R414 air purifier steps up to an H14 Super HEPA filter that traps 99.99% of particles as small as 0.1 microns, for even finer particle capture than the R400. The R414 is an excellent choice for dental and medical offices, clinics, nursing homes, and anyone with severe allergies, asthma, or heightened sensitivities.
Airpura R400 vs. R414: What's the Difference?
The difference between the R400 and the R414 is the HEPA filter. The Airpura R400 uses a True HEPA filter that traps 99.97% of particles as small as 0.3 microns, a strong choice for everyday home use. The Airpura R414 uses an H14 Super HEPA filter that traps 99.99% of particles as small as 0.1 microns, for finer particle capture in medical and dental settings or for people with severe allergies and sensitivities. Both models include 8 lbs of activated carbon, the same all-metal construction, and the same quiet operation.
The R400 also accepts the 414 H14 HEPA filter, so you can switch to Super HEPA the next time you replace your HEPA filter.
HEPA and Carbon: Balanced Protection Against Particles and Chemicals
Many air purifiers focus on either particles or odors, but the R400 and R414 are each designed to handle both. The HEPA filter captures fine particles such as mold spores, pollen, pet dander, and dust, while the deep activated carbon bed adsorbs VOCs, household chemicals, gases, and odors. This balanced approach helps bring relief to allergy and asthma sufferers and improves overall indoor air quality for better long-term health.
The R400 and R414 use standard activated carbon, which works well for everyday household odors and chemicals. If specific chemicals or heavier VOCs are your main concern, the Airpura V400 & V414 use an enhanced, impregnated carbon blend with higher adsorption ratings.
Quiet, Compact, and Built to Last
At 32 dB on low, the R400 and R414 are barely louder than a quiet room (about 30 dB), and they reach 52 dB on high when you want faster cleaning. The simple 3-speed fan (low, medium, and high) makes it easy to match the airflow to your room. Each unit stands 15.5" high and 12" wide and weighs just 23 lbs. The all-metal housing prevents plastic off-gassing and comes in white or black with an oven-baked powder coat. The motor sits outside the airflow, so cleaned air doesn't pass over it and pick up impurities. Neoprene gaskets come standard, and custom felt gaskets are available on request (they're made to order, so they may add to ship time). Both models are made in Canada and backed by a 5-year parts and 10-year labor warranty on residential units.
Sizing Your R400 / R414
At high speed, the R400 / R414 delivers about 2 air changes per hour (ACH) in 1,000 sq. ft. with 8-foot ceilings. The number of air changes you need varies widely, and there are many rules of thumb. For example, clients with allergies or asthma often aim for 3–7 ACH, while areas with heavy VOCs or smoke may even call for 10–12 ACH. The right number for you depends on what the contaminant is, how heavy it is, how quickly it's coming in, how much filtration you want, and your own sensitivities.
When VOCs are your main concern, size the unit on medium speed so air passes through the carbon more slowly, and make sure it can clean the air faster than the source adds to it. You can check your own room with our Air Changes per Hour Calculator, or contact us, and we'll help you find the right fit.
If you're aiming for more air changes in a small space, it may be tempting to choose a 700-series unit. In very small areas, though, a 700 can sometimes create a vortex effect. That means the unit can draw its own clean air back in instead of moving air through the whole room. To reduce that risk, we recommend more than one R400 / R414 or an R600 instead.
At a Glance
Coverage: Up to 1,000 sq. ft. at 2 ACH, depending on speed
R400 filtration: Medical-grade True HEPA, 99.97% at 0.3 microns
R414 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
Activated carbon: 8 lbs; carbon bed 9.5" H x 8.5" OD x 6" ID, 3/4" deep
Pre-filter: 361 sq. in. x 1" deep
Gaskets: Neoprene; felt available on request
Fan/motor CFM (pre-filters): 395 CFM
Delivered CFM (post-filters): 40 CFM on low, 200 CFM on medium, 260 CFM on high
Fan speed: 3-speed (low, medium, high)
Noise: 32 dB on low, 52 dB on high (a quiet room is about 30 dB)
Size: 15.5" high x 12" wide
Weight: 23 lbs
Power: Standard 110V; 69 watts max; 0.6 A
Casters: Not available
Housing: All metal with an oven-baked powder coat; white or black
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
Estimated Filter Maintenance
Pre-filter
Clean every 3–6 months, change every 6–12 months
Carbon filter
Up to 2 years, depending on usage and contaminants
R400 True HEPA
Up to 5 years, depending on usage and contaminants
R414 H14 Super HEPA
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.
Not sure whether the R400 or the R414 is the better fit for your space? We're happy to help. Contact the Lulay Team or call us at (888) 231-1463, and we'll help you choose the right unit for your needs and budget.
Specifications
The Airpura R400 and R414 are safe, effective air purifiers for your home, nursery, and office. Both reduce airborne chemicals, gases, and odors with 8 lbs of activated carbon while a HEPA filter captures particles, so allergy and asthma sufferers can breathe easier. The table below shows how the two units differ, followed by the specifications they share.
R400 vs. R414: The Only Difference Is the Particle Filter
Feature
Airpura R400
Airpura R414
Particle Filter
True HEPA Captures 99.97% of particles as small as 0.3 microns
H14 Super HEPA Captures 99.99% of particles as small as 0.1 microns
Best For
Everyday dust, pollen, pet dander, and household odors
Severe allergies or asthma, mold concerns, fine smoke particles, dental and medical offices, and heightened sensitivities
Coverage: Up to 1,000 sq. ft. at 2 air changes per hour (ACH), 8-ft ceilings, on high
Usage: Particulate contaminants, VOCs, household chemicals, gases, and odors
Size: 15.5" H x 12" W
Weight: 23 lbs
Housing: All metal with an oven-baked powder coat
Colors: White or black
HEPA Construction: 40 sq. ft. filtration surface (measured one side), closed-end metal caps, 10 pleats per inch
Carbon Bed: 8 lbs activated carbon; 9.5" H x 8.5" OD x 6" ID, 3/4" deep
Pre-Filter: 361 sq. in. x 1" deep
Gaskets: Neoprene; felt available on request (custom made, may add to ship time)
Fan/Motor CFM (Pre-Filters): 395 CFM
Delivered CFM (Post-Filters): 40 CFM on low, 200 CFM on medium, 260 CFM on high
Fan Speed: 3-speed (low, medium, high)
Sound Level: 32 dB on low, 52 dB on high (a quiet room is about 30 dB)
Voltage: Standard 110V
Power: 69 watts max, 0.6 A
Casters: Not available
ETL Certified: Conforms to CSA C22.2 No. 113, ANSI/UL 507
CARB Certified: Approved for sale in California
Warranty – Residential Units: 5 years parts, 10 years labor
Warranty – Industrial/Commercial Units: 2 years parts, 5 years labor
Made In: Canada
Need help sizing? Every home is different, so we're glad to run the numbers with you. Heavy VOC or smoke areas may even call for 10–12 ACH, and our Air Changes per Hour Calculator gives you a quick starting point, or you can call the Lulay Team at (888) 231-1463.
If the R600 or R700 is more than your space needs, the R400 or R414 is an excellent, cost-effective option for healthier air.
Ideal for:
Bedrooms, nurseries, and home offices
Families who want clean, healthy air at home
Individuals prone to allergies and breathing problems
Everyday dust, pollen, pet dander, mold spores, and household odors
Dental and medical offices and clinics (R414 recommended)
Nursing homes
Smaller areas in workplaces, industrial settings, and fitness centers
Choose the R414 for the finest particle capture. Its H14 Super HEPA filter captures 99.99% of particles as small as 0.1 microns, so it\'s the one we suggest when mold, fine smoke particles, allergies, asthma, or heightened sensitivities are part of the picture.
These are just some of the uses for these units. Many contaminants fall into more than one category, so if you\'d like help finding the best unit for your needs, please contact us.
Keep in mind that many factors come into play when choosing an air purifier, including, but not limited to, the type of contaminants, coverage (enough air changes for the level of off-gassing), how fast things are off-gassing, particulate matter, and the sensitivities of the people in the space.
The uses above are simply suggestions. Air purification isn\'t a black-and-white science. There\'s a lot of gray area that affects results, including things outside our control, like humidity or even where the unit is placed. We wish there were one unit for every need, since it would make our job much easier, 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, the same carbon used in the R400 and R414, 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. Units that use impregnated carbon, such as the V400, V414, V600, C600DLX, F600, and F600DLX, have higher adsorption ratings for many chemicals.
Download the Airpura KCL Test Report (PDF) – Testing was performed on the Airpura 600 series with standard activated carbon, the same carbon type used in the R400 and R414. Units with impregnated carbon perform even better for many chemicals.
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
R400 True HEPA
Up to 5 years, depending on usage and contaminants
R414 H14 Super HEPA
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.
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