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Portable Electrostatic Air Purifier MESP KJ300

Portable Electrostatic Air Purifier MESP KJ300


Do you know that there is a cheaper and more effective way to eliminate harmful bacteria & viruses in your room? With our latest proven technology, certified by an independent US lab, you can destroy bacteria and viruses from the space without constantly changing UVC lamps and expensive HEPA filters for years!! In addition, unlike conventional UVC+ HEPA filter purifiers, our system does not produce harmful Ozone, and there is no need to replace costly HEPA and UVC lamps every few months.

There is nothing to replace and nothing to throw. Our revolutionary Micro Electrostatic Precipitator Filter can be washed every few months without affecting its efficacy for a whopping 100 times or about (16 yrs if you wash it 6 times a year)!


M 5 years warranty.


Save Energy, save buying and throwing lamps and filters.  Save our environment for our kids.



• Efficiently remove PM2.5, coronavirus, bacteria, pollen, allergen, and other particulate  pollutants

• Kill 99.99%+ viruses and 99.96% bacteria, remove 99%+ airborne particulates

• No material consumption with our patented Washable filter up to 100 washes (thus cost-efficient and environment-friendly)

• 10 times the dust-removal capacity than traditional ESP purifiers

• Immediately usable without waiting washed filter to dry.

• Additional M8 methanol filter efficiently absorbs and decomposes methanol and other harmful chemical gases

• Release negative ions to make the air fresher and healthier

• "Surface design" of front panel expands air volume at the bottom and effectively purifies sedimentary pollutants at the bottom

• Low noise, no arc, and spark (34dB in silent mode, <20dB in sleep mode)

• Built-in particle sensor  with an indicator light that displays air quality & automatically regulates airspeed, and  intelligently prompts the user to clean

• Low energy consumption, similar to a light bulb.

• Low-pressure drop thus energy efficient

• High Tolerance (humidity up to 95% and temperature from-15℃ to 48℃ )

• Safe without any harmful byproducts


    We have a 14-day return policy, which means you have 14 days after receiving your item to request a return.

    Your item must be in the same condition that you have received it to be eligible for a return. It must be unworn or unused, with tags, and in its original packaging intact. You’ll also need the receipt or proof of purchase.

    To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label and instructions on how and where to send your package. Items sent back to us without first requesting a return of goods will not be accepted.

    You can always contact us for any return questions at

    Damages and issues
    Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you received the wrong thing so that we can evaluate the issue and make it right.

    Exceptions / non-returnable items
    Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). In addition, we do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

    Unfortunately, we cannot accept returns on sale items or gift cards.

    The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

    We will notify you once we’ve received and inspected your returned goods and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. However, please remember that it can take some time for your bank or credit card company to process and post the refund. In addition, you will have to bear the shipment cost from your address to our address in Singapore.


    Product Model

    Power Supply (V/Hz) 110~240/50~60
    Rated power(W) 55
    Rated air volume(m³/h) 420
    Clean air volume (CADR particulate matter)(m³/h) 300
    Clean air volume (CADR formaldehyde)(m³/h) 100(Optional)
    Accumulated Particulate Purification Energy Efficiency (CCM Particulate Matter) P1
    Purification Energy Efficiency (Particulate Matter)(m³/(W·h)) 5.4(High efficiency)
    Purification efficiency (formaldehyde (m³ / (w · h))) 1.7(High efficiency)(Optional)
    Area of use(㎡) 20-25
    Noise(sound power level)dB(A) 60(High-speed mode);34(Sleep mode)
    Weight(kg) 7.5
    Anion content(PCs./cm³) 10x10^5
    Ozone concentration <0.003mg/m³
    Disinfection method and certification



    Bactericidal killing rate(%)




    Size: 57H x 34W x 22D cm

  • Warranty

    The KJ Series Air purifiers come with a special 5-year warranty.

    The defective set will be replaced with a new set provided it is returned within 2 weeks from the date of purchase. 

    The customer has to return them to our service center for repair.

    Damaged due to knocks, drops & water spilling into the air purifier will not be covered under the warranty

Excluding Tax |
Out of Stock
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