4.7 star rating 285 Reviews

mod HEPA Air Purifier

Cleans 1,250 sq ft (2 times per hour)


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Our most powerful air purifier. Real HEPA filtration. Cleans the largest spaces with an energy efficient motor and intuitive swipe-touch control system. Easily turns any office, conference room, bedroom, living room, or common area into a clean one.

  • Bedroom, Office
  • Living Room
  • Basement
  • Large Living Areas
  • Classrooms
Effective For:
  • Dust,
  • Allergies,
  • Pet Dander,
  • Mold,
  • Smoke Particles,
  • Bacteria, Viruses,
  • VOCs
  • Meet mod, where high design meets high performance. Energy Star. Patent pending.
  • Smart design - from the glass user interface to the cylindrical shape with an orange carry handle and filter handle so a dirty filter will never be touched.
  • Removes Allergens, Asthma, Dust, Bacteria, Pollen, Mold Spores, Pet Dander, Smoke, Viruses, VOCs.
  • Real HEPA filter (equivalent to H13) tested to remove 99.4% at 0.02 microns (20 nanometers) and 0.10 microns.  COVID is around 0.125 microns where the removal rate  is 99.6% with each air pass.
  • The single mod filter consists of a mesh pre-filter, real HEPA filter media, and activated carbon filter layer.
  • Quiet with high air flow ability to clean larger rooms- 1,250 sq ft with 2 air changes per hour.
  • The mod real HEPA air purifier qualifies for CMP grant funding for COVID in-person nursing home visitation aid. The mod cleans an impressive 1,250 square feet area two times per hour to ensure the healthiest air in extra-large spaces.
  • See our guide for use in a classroom or dental office.
  • What's included: Air purifier with filters installed, User's Manual
  • Remove air filter inside unit from plastic wrap before operating. See video of set-up.
  • Find the Mod Replacement Filter.
  • View Technical Specs >

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Meet The mod HEPA Air Purifier

meet mod HEPA air Purifier

With a smooth, low-profile exterior and cylindrical shape that easily fits anywhere in a room.

Mod quietly brings the powerful air cleaning ability to remove 99.6% of virus sized particles and airborne particulates from a 1,250 square foot room two times per hour.

Smart design - from the glass user interface to the cylindrical shape with an orange carry handle and filter handle - rest assured the dirty filter will never be touched.

Simple to use, low cost to operate and quieter than other true HEPA air cleaners in this price range.

Note: To power off, press and hold the power button until it powers down. It may take a few seconds so it's less stressful on the motor.

Where To Use

Where To Use

Best for: Bedroom, Office, Living Room, Basement

Coverage Area

Coverage Area

Up to 1,250 sq. ft.

Effective For

Effective For

Dust, Pollen, Mold, Pet Dander, Allergies, Bacteria, Smoke Particles, Light Odors only

Play Video


No air by-pass so all the air is filtered. This is a huge feature and is one reason we have superior air filtration performance.



Effective for fine particles, smoke and gases (methane gas, sulfur gases, and many others.)



Latest Japanese engineered EC motor is quieter and uses up to 90% less energy. Allow the motor a few seconds to reach the set speed. The reasons why are explained in the EC motor section below.

Easy To Use

Easy To Use

Control by touch - simply slide a finger along the fan speed arc to set the precise air flow. Compact and lightweight - at just 23 lbs, Mod is easy to move between rooms and it’s only 14 inches wide and deep by 25 inches high - fitting almost any space.

Product Details
Room Coverage Most sized rooms - up to 1,250 sq ft (2 air changes per hour)
CADR Rating Smoke: 338, Dust: 337, Pollen: 412
Fan Speeds Variable (97-338 CFM)
Power 77 watts, 120V, 60Hz
Filter One Filter (Pre-filter, real HEPA, Activated carbon)
Filter Life 6-12 months
Nano-Particle Removal 99.4% at 0.1 microns, 99.4% at 0.02 microns (20 nm)
VOC (Formaldehyde) Removal: 76% (in 1 hour test)
Noise Level 20-60 dBA
Dimensions 14" x 25" x 14" (W x H x D)
Weight 23 lbs
Controls Glass user interface. Slide finger to set precise fan speed
Where Made Designed in USA, Assembled in China
Warranty 10 years
Certification Energy Star, CE, ETL, RoHS, California Air Resources Board (Model Number: MD01, EO#: G-20-224)
Technical Specs

Easy To Use

  • Simple, intuitive controls with easy filter access. Slide your finger along fan speed arc to set the precise air flow.
  • Room air purifier ready to use out of the box (remove air from plastic bag before use).
  • Don't need a manual to operate the air purifier.


  • Best Filters – Rated #1 air purifier in independent study by Clemson University.
  • Latest Japanese enginered motor is quiet and uses up to 90% less energy.

Best Reliability And Quality

  • Proudly designed and tested in the USA.
  • MERV 17 HEPA filter. And it's super quiet while providing a strong air flow for medium to larger sized rooms.
  • Motor protection - motor will slow down intermittently if run continuously at high speed to extend the life of the motor.


  • Certified Ozone Safe by the State of California Air Resources Board.
  • ETL certified safe.
  • Energy Star.
Included in your purchase

1 Mod HEPA Air Purifier Air Filter

User's Manual
What's Included

The Best Filters


With the mod we combined three filters into one – a mesh pre-filter, real HEPA filter and a layer of activated carbon. This cylindrical filter has a convenient carry handle so you never have to touch the dust that has accumulated on the filter. The mod air filter also has seals on both ends to ensure no air bypasses the filter so you can breathe the cleanest air.

The carbon layer will adsorb VOC's. In a 2 hour test, the mod removed 88% of formaldehyde.

Note: Dust will accumulate on the outer mesh screen of the filter. This can be vacuumed or wiped with a cloth to clean.

Filter Efficiency
Filter Efficiency By Particle Size

Effective for fine particles, smoke and gases (methane gas, sulfur gases, and many others.)

Performance For Nano-Sized Particles
Performance For Nano-Sized Particles

0.02 microns = 20 nanometers

The Best Motor & Fan

mod (like our EJ and Erik series) has the best, latest EC motor and fan so it provides higher air flow while being quieter and using much less power. The EC motor is a much-improved technology over the traditional AC motor that nearly every other air purifier uses.

AC motors use technology that was developed in the 1800’s and use more energy, can have an annoying hum, and are not as reliable. They are common because they are very inexpensive to produce.

Placement - we suggest placing the air purifier in the room where you spend most of your time. For most this is a bedroom where the unit stays plugged in and runs 24/7 or whenever you are in the room.

Best Motors and Fan

EC Motor Advantages

EC (Electrically Commutated) motors use electronics to convert the AC voltage to DC to run the motor. EC is the latest technology innovation whereas AC motors use technology from nearly 200 years ago. With an AC motor from China, chances are that the copper was wound by hand and the ball bearings are of low quality making it unreliable.

  • EC motors are DC so they are more efficient and use up to 90% less power and in the long term can provide significant cost savings.
  • Runs cooler so greater reliability.
  • More compact
  • Has a proven track record in the telecom and computer industry.
  • No motor hum that you get with an AC motor.

Why does the motor/fan start and stop more slowly than an AC motor? EC motors have a soft start programmed into the motor to limit the start-up current the motor draws (there are electronics built into the motor).
The ramp down after power is removed is only a function of the inertia of the fan and the friction of the bearing system. A high quality bearing system will take longer to slow down and stop since the friction is minimized (alignment is better, lubricant is better, etc.).

Room Size

Room size

Up to 1,250 sq ft with 2 air changes per hour.

Perfect for large home living areas, offices, healthcare facilities, nursing homes, and any other small to large square footage space that requires portable air cleaning.

The mod is super quiet - in fact the quietest air purifier on the market for the given air flow. And on the lowest fan speeds we could not detect any sound in the sound chamber testing.

CADR Test Results
CADR Test Results

CADR (Clean Air Delivery Rate) is the industry standard for ability to reduce smoke, dust, and pollen particles in the 0.10 to 11 micron (μm) particle size range and basis for assessing room size coverage.

CADR Test Standard
CADR Test Standard

Tested per ANSI/AHAM AC-1 by Intertek ETL

How To Unbox And Prepare For Use

How To Replace A Filter

Important: Remove the air filter from the plastic wrap inside the air purifier before use.

Note: To turn off you will need to press and hold the power button for 3 seconds

Brands Using Oransi

Oransi air purifiers are used by some of the leading companies, medical centers, government organizations and universities. We are delighted to be able to provide clean air to so many quality organizations.

American red cross

mod HEPA Air Purifier

Cleans 1,250 sq ft (2 times per hour)


+ Free Shipping

Reviews & Questions

Still Have Questions?

The mod Air Purifier is a high-performing product that is the result of over 1,000 engineering hours. Naturally, you may have some questions for us. Luckily, we have the answers.