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PuroAir 400 Air Purifier: The Future of Large Room 2,145 Sq Ft Air Purification Today

The PuroAir 400 Air Purifier is an innovative device that redefines air quality standards in homes and offices. In this blog post, we delve into the distinguishing features of this remarkable product, its comparison with other models in the market, and why it stands out as a superior choice for air purification. Whether you’re grappling with respiratory conditions or simply seeking to improve your indoor air quality, this comprehensive review will provide beneficial insights into the game-changing technology that brings.

Air purification is a process that improves indoor air quality by reducing the presence of pollutants such as dust, pollen, mold spores, pet dander, and bacteria. This is done through air purifiers, which use technologies like HEPA filters, activated carbon, or UV sterilization to cleanse the air. Having an air purifier at home is essential for several reasons. First, it helps reduce the risk of health issues related to poor air quality, such as allergies and asthma. Second, it traps airborne pathogens, potentially reducing the spread of illnesses. Finally, it helps to eliminate unpleasant odors, providing a fresher and more pleasant living environment.

PuroAir 400 Air Purifier First Impression

Upon unboxing the PuroAir 400 Air Purifier, one is immediately struck by its sleek and modern design. Its compact frame, measuring 17.5 x 10.6 x 12.5 inches, makes it an unobtrusive addition to any room. The device is comfortably lightweight, weighing only 16 pounds, so it can quickly move from room to room as needed. The packaging is sturdy and secure, ensuring the device arrives without any damage, and includes a detailed user manual that provides clear instructions for setup.

The build quality is distinctly high-end. The exterior casing feels robust and durable, while the touch control method provides a sense of modern sophistication. The HEPA filter, the device’s heart, is well-constructed and designed for optimal performance. From a first impression standpoint, it’s clear that it does not compromise on quality — every feature and function has been meticulously crafted to provide users with superior air purification.

PuroAir 400 Review

The PuroAir 400 Air Purifier boasts several impressive features that set it apart from its competitors. One of the most notable is its HEPA 14 filter. This medical-grade filter can remove up to 99.99% of delicate particulate matter down to 0.1 microns in size, including dust, pet dander, odors, and smoke. This makes it 10x more powerful than a HEPA 13-grade filter. Additionally, it can clean the air in large rooms up to 2,145 sq ft in just 60 minutes, which is ideal for larger homes and offices.

In terms of user interface, the PuroAir 400 is user-friendly and intuitive. It includes a smart particle sensor that automatically adjusts power based on air quality and a touch control method for easy operation. The device has a timer, fan speed control, sleep mode, filter replacement indicator, and child lock for convenience and safety. It is CARB, ETL, ISO, UL, and Energy Star certified, giving users confidence in its safety and efficacy. The PuroAir 400 Air Purifier is an excellent investment for those seeking a healthier indoor environment.

PuroAir 400 Features

  1. CLEANER AIR IN MINUTES: The PuroAir 400 takes the value proposition of air purifiers to an entirely new level by offering cleaner air in minutes. This superior device can purify large rooms up to 2,145 sq ft within an astonishingly quick time of 60 minutes. This makes it an ideal solution for homes and offices requiring frequent and comprehensive air filtration. The filtered air is clean, crisp, and refreshing, leading to an immediate improvement in the overall air quality. This is a significant boon for individuals with respiratory ailments or allergies, as the PuroAir 400 removes common allergens.
  2. WORLD’S FIRST HEPA 14 FILTER: Its unique feature, the world’s first HEPA 14 filter, offers unprecedented benefits. This medical-grade filter can remove up to 99.99% of delicate particulate matter as small as 0.1 microns. This means it effortlessly captures and eliminates common household pollutants like dust, pet dander, odors, and smoke. It is ten times more powerful than a standard HEPA 13-grade filter, ensuring a more thorough filtration process. A HEPA 14 filter contributes to a healthier and safer living environment, particularly for those with respiratory conditions, allergies, or sensitivity to air pollutants.
  3. SCIENTIFICALLY PROVEN PERFORMANCE: The PuroAir 400 Air Purifier doesn’t just rely on marketing hype; its performance is backed by rigorous scientific evidence. Renowned scientists and virologists from prestigious institutions like Harvard, MIT, Johns Hopkins, and Oxford University developed the air purifier. Their extensive research and technological expertise have been harnessed to create a device that delivers on its promises. With this caliber of scientific backing, users can be confident that they’re investing in an air purifier that’s not only effective but also reliable and safe. It is an assurance of quality that few competitors can match.
  4. CLEANS AIR AUTOMATICALLY: One of the standout features is its ability to clean the air automatically. It is equipped with a smart particle sensor that continually monitors the air quality in the room. Whenever the sensor detects a drop in air quality, the device automatically adjusts its power to ensure optimal air filtration. This autonomous function eliminates manual adjustments, making it especially convenient for users. More importantly, it ensures your indoor air remains clean and healthy, even when you cannot monitor it. This feature underscores the commitment to providing a seamless and efficient air purification solution.
  5. Breathe easier: This air purifier doesn’t just clean the air; it makes breathing easier. For individuals with respiratory conditions like asthma or allergies, air quality is not just a matter of comfort but health. Removing fine particulate matter down to 0.1 microns and common allergens reduces the risk of triggering these conditions. Even for those without pre-existing respiratory issues, the clean, crisp air produced by the PuroAir can enhance respiratory health and well-being. The assurance of breathing cleaner air can provide significant peace of mind, particularly in seasons where pollen or air pollution levels are high.


  • Color: Black
  • Item model number: PA400
  • Product Dimensions: 17.5 x 10.6 x 12.5 inches
  • Weight: 16 Pounds
  • Floor Area: 2145 Square Feet
  • Specification Met: CARB Certified
  • Control Method: Touch
  • Filter Type: HEPA 14

Comparison: PuroAir 400 Air Purifier vs Other Models

  • PuroAir 400 vs. AirOasis 1000G3
    Compared to the AirOasis 1000G3, the PuroAir 400 offers a larger room coverage of up to 2,145 sq ft, significantly higher than the 1,000 sq ft range of the AirOasis model. While the 1000G3 uses a germicidal UVC Lamp for air purification, the PuroAir 400 boasts a medical-grade HEPA 14 filter, offering superior filtration ability. The PuroAir 400 is higher in price, reflecting its advanced features and performance.
  • PuroAir 400 vs. Blueair Blue Pure 211+
    The Blueair Blue Pure 211+ also offers excellent air purification but has a smaller room coverage of up to 540 sq ft. The PuroAir 400’s HEPA 14 filter outperforms Blueair’s mechanical filtration and electrostatic charge combination. As for price, both air purifiers are comparable, with the PuroAir 400 being a slightly more significant investment due to its higher performance.
  • PuroAir 400 vs. Levoit LV-H132
    The Levoit LV-H132 has a smaller footprint and is more budget-friendly. However, it only covers up to 129 sq ft, making the PuroAir 400 a better option for larger spaces. While the LV-H132 uses a 3-stage filtration system, including a HEPA filter, it does not match the PuroAir 400’s HEPA 14 filter in terms of effectiveness at removing ultrafine particles.


The PuroAir 400 Air Purifier is a worthy investment for those prioritizing air quality and health. This superior device covers vast spaces up to 2,145 sq ft and purifies the air quickly, making it ideal for both homes and offices. The PuroAir 400’s world-first HEPA 14 filter has its star feature, which removes up to 99.99% of fine particulate matter and common allergens and provides an unparalleled safeguard against air pollutants. Backed by scientific evidence and developed by world-renowned scientists, it assures reliability, efficacy, and safety. Its automatic air-cleaning function adds to its convenience, while its promise of cleaner, healthier air makes it an essential tool for those with respiratory conditions or sensitivity to air pollutants. Compared to other models on the market, it consistently outperforms, covering larger areas and offering superior filtration, making it a sound and beneficial investment.