Air filter is a germ storage or 'Infectious Waste' as in the medical term

Air purifiers are among the devices that many households choose to clean the air in various ways, including filtering dust, airborne particles such as PM 2.5, pollen, as well as bacteria, viruses, and fungi. One important aspect to consider when using an air purifier is the filter, which acts as a container to trap unwanted substances present in the air. Upon closer examination, you will discover that the filter is highly effective to the extent that it is referred to as an “infectious waste” filter within the medical community. Let’s explore how air purifiers can be utilized to ensure maximum safety for users.


According to Ministerial regulations and guidelines set by the World Health Organization (Safe management of wastes from Health-care activities, 2014), infectious waste is defined as “solid waste contaminated with pathogens in a quantity or concentration that can potentially cause disease upon contact or close proximity,” and it also includes “waste suspected to be contaminated with pathogenic agents such as bacteria, viruses, parasites, and fungi in sufficient concentration or quantity to cause disease

How can an air filter become a germ storage or ‘infectious waste”?

Air purifiers work by drawing air through the filters inside the unit and releasing clean air back into the room. The air before passing through the filters contains dust, various particles, as well as bacteria, viruses, and fungi. When the air passes through the filters, these contaminants are trapped and retained either entirely or partially, depending on the quality and type of the filters. As a result, the air that flows through the filters becomes cleaner and purer.


Cleaning the filters in an air purifier involves replacing the old filters with new ones. Typically, the filters are recommended to be changed every 3-6 months, depending on the air quality of the specific location and the duration of the device’s usage. Therefore, disease-causing pathogens and dust are stored within the unit until it is time to replace the filters. It’s like having a “reservoir of accumulated contaminants” in our rooms all the time.


One potential risk for people in a closed space is if the process of replacing the old filters takes place without good ventilation. In such cases, the disease-causing pathogens may become airborne and can potentially enter the body of the person changing the filters, as well as into the air within the room.“reservoir of accumulated contaminants” in our rooms all the time.


Is an air purifier still needed?

  • The main feature of an air purifier is its ability to filter out dust, particles, and other foreign substances that float in the air, which can potentially trigger allergy symptoms. This is especially important in urban areas or places with burning grass, construction, and other sources of pollution. Air purifiers are also effective in removing pollen. Therefore, people living in heavily polluted areas still find air purifiers beneficial.

    However, if the goal is to specifically target the elimination of viruses, mold, and bacteria in the air, there are better alternatives available

    • Conventional air purifiers draw in air to trap various airborne particles, toxins, germs, and bacteria in the filter. However, they are unable to eliminate these pathogens on object surfaces, which are frequently touched and serve as important sources for pathogen transmission.

    • For more efficient germ elimination, there are alternative tools available that do not retain germs, can inactivate them (decomposing germ molecules), and leave no harmful residues after sterilization. One such tool is the Wellis Air machine, specifically designed for sterilization purposes.

What is Wellis Air?

Wellis Air effectively eliminates viruses, bacteria, and mold in both the air and on object surfaces, making it a safer and more efficient option compared to general air purifiers. 


1. This is achieved through the implementation of the hydroxyl charge firing principle, which utilizes the same ion naturally produced in the atmosphere to cleanse the air. By breaking down the molecules of viruses, bacteria, fungi, and chemicals in the air, Wellis Air covers the entire room and reaches various surfaces such as furniture, appliances, children’s toys, clothes, and even hard-to-reach areas like under tables or beds. The hydroxyl ions, being gaseous, have the ability to disperse and reach every nook and corner of the space. Additionally, Wellis Air is capable of killing numerous harmful strains, including SAR-COV 2 (the virus responsible for COVID-19), RSV (commonly causing respiratory infections in children), Rotavirus (which leads to diarrhea in young children), HFMD (Hand, Foot, and Mouth Disease caused by Coxsackie viruses), and various strains of influenza.

The image demonstrates a comparison of the performance between general air purifiers and the Wellis Air machine, which shows that the Wellis Air machine surpasses in various aspects. It is capable of killing germs in the air and on surfaces, ensuring safety for humans, pets, and the environment, without concerns about the accumulation of disease-causing pathogens within the device.

2. Wellis leaves no residue after sterilization, making it safe for small children, the elderly, pets, and the environment. It achieves this by utilizing the same type of charge found in nature to eliminate pathogens in the atmosphere.


3. One of the notable advantages of Wellis Air is its continuous germ-killing capability, functioning 24 hours a day, even when people gather in a shared space. Importantly, it does not pose any harm to individuals, pets, or the environment due to its natural charge-based mechanism.


4. There is no need for complex installation processes, such as drilling walls or reconfiguring rooms, making it hassle-free to set up. There are also no concerns about filter replacements or challenging maintenance tasks. The only requirement is to change the olefins oil cartridge every three months. In the event of device malfunction, a new unit can be readily provided for immediate use.


5. Wellis Air is designed for user convenience, and its ease of use extends to even the elderly. Simply plug it in, insert the olefins oil cartridge, and press the activate button to begin its operation.


Read more about Wellis Air here>>



If we summarize the sterilization efficiency between Wellis Air and general air purifiers, the details can be seen in the image below:

The image demonstrates a comparison of the performance between general air purifiers and the Wellis Air machine, which shows that the Wellis Air machine surpasses in various aspects. It is capable of killing germs in the air and on surfaces, ensuring safety for humans, pets, and the environment, without concerns about the accumulation of disease-causing pathogens within the device.

Use Wellis Air to enhance the air-cleaning effectiveness

Air purifiers are highly effective in eliminating dust and particles in the air, while Wellis Air excels at eliminating germs in the air and on object surfaces. Therefore, it is recommended to use Wellis Air in conjunction with an air purifier to ensure thorough cleaning of all areas.

In conclusion, 1. it is important to choose the right device for its intended purpose, as each device is designed to meet different needs. When selecting a disinfection solution, opting for a dedicated sterilizer like Wellis Air is advisable.


2. When changing the air filter, it is crucial to take precautions to minimize the risk of germ transmission. Wearing gloves and a hygienic mask is recommended, and the filter should be replaced outside the house in a well-ventilated open area. Additionally, Wellis Air should be used in conjunction with an air purifier, as air purifiers primarily filter dust and particles, while Wellis Air specifically targets and removes viruses, mold, and bacteria from the air and object surfaces. Order Wellis Air here>>



To minimize the risk of infection from contact with objects or between individuals, it is advisable to wear a face mask in crowded or poorly ventilated areas. Regularly washing hands with soap or using 70% alcohol gel is also important to prevent the spread of germs and infection. Additionally, maintaining a safe distance from others is crucial. The use of a Wellis Air sterilizer serves as an additional measure to reduce the presence of germs in the air and on surfaces.

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