Advanced HEPA+ Jr Air Purifier


Our Advanced HEPA+ Jr Air Purifier is specifically made to help people with allergies, asthma, or mild chemical sensitivities. The Advanced HEPA+ can help to significantly reduce exposure to the indoor air pollutants responsible for triggering allergies and asthma, and causing harmful health effects. Made exclusive to our specifications and control, Advanced HEPA+ Jr is a True Medical-Grade HEPA filter plus 6.5 lbs of activated carbon remove 99.97% of lung-damaging particles, odors, gases and fumes from rooms up to 700 square feet. Long-life HEPA saves on filter replacements. Choose from four popular colors. Optional matching color casters available and sold separately.

MSRP $519.00 Selling Price $389.99
In stock

This product provides relief from: Asthma, Bacteria & Germs, Dust Allergies, Dust Mites, Fragrances & Odors, Mold & Mildew, Pet Dander, Pollen

Made exclusive to our specifications and control, our Advanced HEPA+ Jr Air Purifier provides much more than just True HEPA filtration. According to the EPA…“Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems in the home,” where “health effects…may be experienced soon after or, possibly, years later.” Therefore, in addition to filtering allergens and other particles with 99.97% True HEPA efficiency to 0.3 microns, the Advanced HEPA+ also uses an activated carbon blend to remove gaseous pollutants from indoor air. This tremendous level of filtration power, together with the amount of air it processes, mean the Advanced HEPA+ can help to significantly reduce exposure to the indoor air pollutants responsible for triggering allergies and asthma, and causing harmful health effects.

The U.S. Environmental Protection Agency (EPA) warns that “Indoor air pollution is among the top five environmental health risks” facing us today, indicating that room air cleaners can help reduce this risk, accompanied by pollutant source control and good ventilation. According to the EPA, an air cleaner must be both efficient (in terms of the percentage of particles and gaseous pollutants removed) and effective (in terms of the amount of air being filtered). All other factors being equal, the higher these two numbers, the more likely an air cleaner will be in actually reducing a room's gases and particle counts.

Why the National brand Advanced HEPA+ Jr Air Purifier?

  • Superior Filtration ‐ Particles, Gases, Odors and VOCs

    The Advanced HEPA+ Jr provides 4 stages of intense filtration. What sets the Advanced HEPA+ Jr. apart from other True HEPA systems is its filters. The Advanced HEPA+ contains 30 square feet of True Medical-Grade HEPA filter media (to trap sub-micron particles). The HEPA is surrounded by 6.5 pounds of granular carbon/zeolite (to 'adsorb' odors, gases, formaldehyde, ammonia, and carbon monoxide). The specially made activated carbon is highly porous, producing a much larger surface area, which enhances and extends its performance. Two pre-filters block larger particles – one that surrounds the carbon/zeolite filter, the other that wraps around the interior of the unit's housing.  The power of this filtration in capturing particles and gaseous pollutants puts the Advanced HEPA+ Jr. at the top of its class.

  • Designed for Performance

    The Advanced HEPA+ Jr processes 125 cubic feet of air every minute. Air is drawn in from all sides of the unit via its 360° air intake grilles, where it immediately begins to be pulled through the 4-stage filter, which progressively removes dust, hair, fibers, odors, gases, VOCs, Radon daughters, pollen, pet dander, mold spores, bacteria, viruses, and other allergens and contaminants.

    The Advanced HEPA+ Jr features high-velocity airflow, capable of cleaning a 465 square foot room in 15-20 minutes. The unit's powerful fan produces an airflow of 200 cfm (cubic feet per minute) on high, and 50 cfm on low. Running the unit on high with the door closed helps to quickly create a pocket of clean air around the user.

    The Advanced HEPA+ Jr produces 50-67 dBA (decibels) of noise, depending on fan speed selected. Customers report it to be very quiet on the low setting. Set at high, the sound approximates that of a normal conversation. Many customers use the high setting for quick or maximum air cleaning.

    The Advanced HEPA+ Jr is solidly made. Each unit is built using 22-gauge welded steel that does not rattle or vibrate, even at max speed. A powder-coated finish (baked at 375°F) does not off-gas and lends durability. The Advanced HEPA+ standard-size models come equipped with heavy-duty casters for easy portability. Casters are optionally available and sold separately for Junior-size models for easy portability on either floors or carpets.

    The Advanced HEPA+ saves energy. An energy efficient PSC motor, equipped with a centrifugal fan, uses less energy than some light bulbs. Electricity to run the unit (82 watts) should cost about a penny an hour. (Rates are based on average residential electricity rates projected by the United States EIA for 2014-2015.)

  • Made in USA

    Our National brand Advanced HEPA+ Jr is made exclusive to our specifications and control and is made right here in the USA by American workers dedicated to making the best possible air purifiers for those whose lives are affected by respiratory illness or discomfort.

  • Product Integrity

    The Advanced HEPA+ Jr undergoes tough government and third-party testing, whose stringent standards must be met to ensure the product performs as claimed. Product testing is conducted by accredited and well-respected testing laboratories, and has included tests on flow design, airflow rate, and gas, odor and particle removal.

  • Ease of Use and Low Maintenance

    The Advanced HEPA+ Jr comes ready to be plugged in. The unit comes with two filters ‐ the outer pre-filter, and the HEPA filter assembly. All models use a manual rotary dial to switch between 3 fan speeds ‐ High (III), Medium (II) and Low (I). The unit can be placed anywhere in a room, but should be at least 4-8 inches from a wall for maximum effectiveness.

    Advanced HEPA+ Jr filters are designed to last up to five years, which saves on the hassle and cost of frequent filter replacements. If filters do need to be replaced, the process is straightforward and should take only a few minutes. Although the bottom cover must be removed using a Phillips-head screwdriver (4 screws), filters just lift out for easy replacement. The outer surface of the units need only be vacuumed monthly to remove dust particles that may accumulate on the exterior air intake grilles.

The Advanced HEPA+ Jr provides clean air in rooms up to a maximum of:

  • 700 sq. ft. (1 air change per hour)
  • 480 sq. ft. (2 air changes per hour)
  • 300 sq. ft. (3 air changes per hour)
  • 235 sq. ft. (4 air changes per hour)
  • 185 sq. ft. (5 air changes per hour)
  • 155 sq. ft. (6 air changes per hour)

Advanced HEPA+ Jr Features:

  • Helps reduce exposure to particulates that cause allergic reaction or respiratory distress
  • Also helps to significantly reduce odors, gases, chemical vapors, fumes, and some VOCs
  • Unmatched 4-Stage Filtration Power:
    • Stage 1:  Large Particle Pre-Filter removes dust, hair, and pet dander
    • Stage 2:  Medium Particle Pre-Filter removes pollen, molds, and other spores
    • Stage 3:  Activated Carbon and Zeolite (15 lbs) removes gases, odors, fumes, and VOCs
    • Stage 4:  True Medical-Grade HEPA (60 sq ft) removes allergens, bacteria, viruses, and other particulates:
      • 99.97% removal of particles larger than 0.3 microns
      • 99.5% removal of particles larger than 0.1 micron
  • Powerful 360° air intake system maximizes efficiency and speeds delivery of filtered air
  • Air outlet at upper-side can be directed where you need it most
  • Energy efficient PSC motor, rated for continuous use at high RPM
  • Low cost of ownership ‐ no filter changes for up to 5 years
  • 3-speed rotary dial  (low, medium, high)
  • Solid steel construction
  • Heavy-duty, easy-roll casters can be purchased separately
  • 16.5"H x 11"W x 11"D ‐ 18 lbs
  • Available in 4 Colors
  • Baked-on powder coat does not off-gas
  • Ozone free
  • Made in USA
  • 10-Year Manufacturer's Limited Warranty
More Information

The Advanced HEPA+ Jr provides great overall protection for allergies, asthma, and milder chemical sensitivities. Four levels of intense filtration work in concert to remove the indoor air pollutants known to irritate the respiratory tract or to have negative effects on health. This True HEPA purifier also includes 6.5 pounds of activated carbon/zeolite to adsorb the many gaseous pollutants that most other purifiers cannot.

Room Size

up to 700 sq. ft. max

Recommended For

Allergies, asthma, odors, gases, and chemicals

Best Fit

Ideal for allergy and asthma sufferers, those with mild chemical sensitivity, or those wanting better indoor air quality

True HEPA Filtration


Particle Filtration Efficiency

99.97% to 0.3 microns
99.5% to 0.1 micron

Particle Removal

Dust, dust mite allergen, pollen, pet dander, mold spores, bacteria, viruses

Gas and Odor Removal

Tobacco smoke, chemical vapors, radon daughters

VOC Removal


Optional Filters No
Unique Features / Benefits

Filters last up to 5 years. Low maintenance. Made in USA.

CADR: Dust rating

Not tested by AHAM

CADR: Pollen rating

Not tested by AHAM

CADR: Smoke rating

Not tested by AHAM

ACH (air changes per hour)

ACH per room size:

  • 700 sq. ft. (1 air change per hour)
  • 350 sq. ft. (2 air changes per hour)
  • 175 sq. ft. (4 air changes per hour)
  • 87.5   sq. ft.  (8 air changes per hour)
Airflow (cubic feet per minute)

50-200 cfm

Filtration System

4-stage filtration:
• Large particle pre-filter
• Medium particle pre-filter
• 6.5-lb. carbon/zeolite filter
• 30 sq. ft. True HEPA filter

Number of Filters to Replace

1 filter pack (includes all filters)
Note: Outer pre-filter can be replaced separately, if needed

Replace HEPA Filter

5 years ‐ HEPA filter pack (normal use)

Replace Pre-Filter

See above ‐ part of HEPA filter pack

Replace Other Filters

See above ‐ part of HEPA filter pack

Dimensions (H x W x D)

16.5" x 11" x 11"

Color choices

Black, White, Sandstone, Midnight Blue

Product Weight

24 lbs

Packaged Weight

30 lbs

Shipping Weight

30 lbs

Noise Level - (min-max decibels)

• Low ‐ <50 dB(A)
•Med ‐ 55 dB(A)
•High ‐ 66 dB(A)


Manual ‐ rotary dial

Remote Control


Number of Fan Speeds


LCD Display




Programmable Cycles or Timer


Sleep Mode


Auto Fan Mode (auto adjusts based on air quality)


Particle, Gas or VOC Detector


Filter Status Indicator


Filter Reset function


Other Indicators


Other Features


Casters or Handles

Casters Optional, sold separately

Air Inlet

360° ‐ all sides

Air Outlet

Upper deck ‐ right side

Housing Construction

22-gauge steel. Baked-on powder coat paint finish.

Fan / Motor Assembly

Plastic centrifugal fan. 3-speed control. Long-duty PSC motor, rated for continuous high RPM.

Energy Consumption (watts)

25 to 82 W

Power Requirements

120 V, 60 Hz

Power Plug

Cord approx. 5-6 feet, 2-prong polarized plug


0.7 Amp

Energy Star®


AHAM-certified CADR


Approvals / Other Certifications

CSA approved. California ARB certified.

Ozone Emission


Manufacturer's Warranty

10-Year Limited

The National Brand Advanced HEPA+ Air Purifier Instructions

Please see Owner's Manual tab for full instructions on changing the filter pack.

General on Pre-Filter:

  • The outer Stage 1 pre-filter (which you can see can through the unit's perforated grille) can last for years with regular cleaning. Just vacuum the outer surface of the unit monthly (you do not need to open the unit) by using the brush attachment of your vacuum to remove dust from the outside of the unit and large particles from the pre-filter.

  • If you do not maintain the outer Stage 1 pre-filter or if it becomes damaged, genuine Advanced HEPA+ replacement filters are available through National Allergy.

General on HEPA Filter:

  • Advanced HEPA+ filters are designed to last up to 5 years. However, please remember that the filter's service life is related to the volume of air that passes through the air purifier and the amount of contaminants in the air. If your indoor air has an unusually high level of airborne particulates, smoke or gaseous contaminants, the filter's service life may be shortened.

  • Regular maintenance helps to prolong the life of the HEPA filter. Keep the area surrounding the air purifier clean, and be sure to vacuum any dust buildup on the outside of the unit, especially on the 360° air intake grille.

  • Replace the HEPA filter pack if you notice a significant drop in clean, odorless air flow.

  • Caution:  Filter may have sharp edges. Please wear gloves when servicing the filter.

  • Important ‐ For first-time use or any time you change the HEPA filter pack, it is important that you run the purifier on the High (III) setting for at least the first hour of use. After the first hour, turn the Speed Control Setting to the desired level.

Click here to view the Owner's Manual for the Advanced HEPA+.

Click here for a one-page set of instructions on filter changes for the National brand Advanced HEPA+ Air Purifier.

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