Washable HVAC Air Fliter
Both Purify and Sterilize

MESP® Air Conditioning Sterilizing Purifier

- Washable HVAC air filter that both purify and sterilize -

Air Conditioning Sterilization Purification refers to purification of indoor air by central treatment and systematic airflow organization instead of independent discrete sterilizing purification. MESP® Air Conditioning Sterilization Purification System purifies the indoor air by various air purification equipment and automatically work with HVAC system to effectively remove particulate matters, pollen, allergen and other pollutants as well as kill bacteria and viruses for perfect air quality. AirQualty Technology provides a full range of MESP® Air Conditioning Sterilizing Purifiers adapting to air handling units(AHU), fan coil units(FCU), and air ducts, etc. They can be easily used in any new construction or retrofit projects.


  • Kill 99.99% of viruses(including COVID-19) and 99.96% of bacteria
  • High-efficiently remove airborne particles
  • 10 years washable filter
  • Auto on/off work with HVAC system
  • No space occupation
  • Low pressure drop thus energy efficient
  • Ultha-low ozone, no arc and spark
  • Releasing negative ion which is beneficial to the health
  • High usability with wide temperature and humidity range
  • High flame retardant
  • Easy to install and maintain
  • Certications & test reports

    99.99% H1N1 Virus Disinfection Efficacy

    The test report from SGS shows 99.99% of H1N1 virus has been killed by KJ MESP portable air purifiers.

    99.99% COVID-19 Virus Disinfection Efficacy

    Through the course of the three air flow passes conducted and average of 99.99% of SARS-COV-2 (the virus that causes COVID-19) reduction was observed.

    Learn More

    ALl MESP HVAC Models

    FAH: AHU MESP Air Sterilizing Purifier
    FFC: FCU MESP Air Sterilizing Purifier
    FFC-A3: FCU Ultra-thin MESP Air Sterilizing Purifier
    FSA: Ceiling Mounted MESP Air Sterilizing Purifier
    FAD: Air Duct MESP Sterilizing Purifier
    FFA: MESP Fresh Air Sterilizing Purifier
    Amigo 1.3 PM2.5 Monitor

    Amigo 4 Indoor Air Quality Monitor

    MESP Demo Instrument

    About MESP® Technology

    MESP® stands for Micro-electrostatic Precipitator, a new generation indoor air clean technology, which is a high-efficiency air purification and sterilization solution through insulated filter with strong electric field.

    Kill Viruses & Bacteria

    MESP® can efficiently kill 99.99% of viruses and 99.96% of bacteria with its strong electric field.

    MESP To Fight COVID-19

    High Efficiency

    Differing from traditional media filters, the pressure drop is low with MESP filters because there is no need to force air through a matrix of small air passages. The physics makes its higher efficiency.

    Washable Filter

    The unique nano PP made filter is permanently washable and designed for more than 10 years lifespan. The total running cost should be much lower than traditional media-filter products.

    Safe and Healthy

    MESP filter works with about 1 µA of current at 6-10 kV, which can prevent from electric shock. Almost no ozone and any harmful byproducts. It releases negative ions beneficial to health while working.

    High Usability

    No worry about extreme change of humidity (up to 100%) and temperature (-15℃ to 50℃), our products will work properly all the time. MESP also has very good flame retardant properties.

    Energy Saving

    Low air pressure drop makes our products working with low power supply. Compared with the use of HEPA filters, the energy consumption of fans using MESP purifiers is 50% to 60%.