Portable air purifiers are a great way to keep your home air clean and free of pollutants. A purifier can help reduce or increase humidity levels, provide access to cleaner air, and generally keep your home environment healthier. While there is no    one-size-fits-all solution for everyone, selecting the right purifier for your needs is key for achieving the desired results.

When it comes to removing pollution from the air, there are certain tasks an air purifier might be able to do effectively—like removing dust particles, pet dander, allergens, some odours, and so on. However, many range in efficiency when it comes to retaining unpleasant smells or more dense particles like smoke particles. To get the most out of an air purifier you will need to consider how often you use it (as some may require more frequent filter changes), what type of filters are available in your budget, and whether pre-filters can be attached to increase performance. While they certainly have their limitations and cannot guarantee complete removal of any pollution source from your home atmosphere; with careful selection and proper maintenance a portable air purifier could prove to be helpful in reducing the levels of common goings-on pollutants indoors as well as providing a fresher air quality in the home.

Understanding Air Purifiers

An air purifier is a device designed to improve the quality of indoor air by filtering particles and gases from the atmosphere. Portable models are used in single rooms, while whole-house systems are connected to an HVAC system for larger spaces. Generally, these units contain several filters – one or more for particles, another for gas and chemical removal, and a final filter to remove odours when needed. The most effective purifiers use different filters in combination to clean the air of airborne pollutants.

In order for an air purifier to provide enhanced filtration for all possible contaminants in your living space it is important to understand the layers in which particles exist: particles larger than 0.3 microns—these often fall into the realm of visible particulates such as dust; 0.3 to 0.03 microns that are harder for most filter systems; and gases/odours/chemicals which cannot be seen but can still affect living conditions when present in rooms . With this knowledge, one can make a more informed decision when purchasing an air cleaner that has the features needed to address these varying pollutants.


Air purifiers are an important tool in combating air pollution. They can be used to remove a variety of pollutants from the air in homes, offices, and other indoor spaces. Air purifiers work by taking contaminated air and passing it through several stages of filtration or cleaning technology. Physical filters are designed to trap particles like dust and pollen on a material so that they don’t get released back into the air. Other types of filtration technologies such as activated carbon filters, electrostatic precipitators, and ultraviolet germicidal irradiation can be used for trapping smaller molecules or destroying pathogens. The various techniques used for purifying the air also depend on the type of pollutant being targeted with the device.

Air purifiers can be helpful in removing contaminants from indoor air and reducing the chances of them from having an adverse effect on human wellbeing. By regularly replacing filters or cleaning the device according to manufacturer recommendations, users can provide that their home is effectively eliminating airborne contaminants from their living environment and enjoy cleaner air indoors. With advances in technology continuing to bring about more efficient methods of air purification, investing in an air purifier is an increasingly effective way to help improve overall indoor air quality on a daily basis.

Mould and Spore Issues

Air purifiers have come a long way in recent years, offering an array of benefits beyond simply filtering the air. HEPA air purification systems are especially effective when it comes to combating issues related to allergens and smoke.

Dr Green explains that these devices can reduce mould and pollen spores, ideal for households where black mould is present. Additionally, running a HEPA air purifier continuously with the windows closed will help to clear the air of smoke. This is a huge benefit as residents won’t need to worry about exposing themselves to harmful PM 2.5 particles associated with cigarette smoke or other burning materials.

In many cases, these HEPA-certified appliances can make a substantial difference for people’s wellbeing when used in their home environment on a regular basis. It also provides peace of mind knowing that on top of removing various pollutants from the air, an indoor air purifier also significantly reduces homeowners’ exposure to potentially hazardous airborne contamination.

Types of Filtration provided by Air Purifiers

1. HEPA Filters:

High-Efficiency Particulate Air (HEPA) filters are the gold standard in air purification. These filters can capture particles as small as 0.3 microns with an efficiency of 99.97%. This makes them highly effective against common allergens and airborne particles.

2. Activated Carbon Filters:

These filters excel at trapping odours, gases, and volatile organic compounds (VOCs). Activated carbon has a large surface area that can absorb and neutralise various chemical impurities in the air.

3. UV-C Light Technology:

Ultraviolet (UV) light, specifically UV-C, is effective at neutralising certain bacteria and viruses. Air purifiers equipped with UV-C technology can sterilise the air by disrupting the DNA of certain microorganisms, rendering them harmless.

Addressing Common Concerns:

1. Size and Coverage:

One common misconception is that air purifiers are not effective in larger spaces. The efficiency of an air purifier depends on its Clean Air Delivery Rate (CADR), which indicates how much clean air the purifier can deliver per minute. Choosing a purifier with an appropriate CADR for the room size is important for optimal performance.

2. Noise Level:

Some individuals worry about the noise generated by air purifiers. However, many modern models are designed to operate quietly, making them suitable for bedrooms, offices, and other living spaces.

3. Maintenance:

Regular maintenance, including filter replacement, is essential for the continued effectiveness of an air purifier. Most manufacturers provide guidelines on when and how to replace filters, ensuring consistent performance.


Numerous scientific studies support the efficacy of air purifiers in reducing indoor air pollution. Research published in reputable journals has demonstrated the ability of HEPA filters to capture airborne particles, including allergens and particulate matter. Additionally, studies have highlighted the positive impact of UV-C light on eliminating certain bacteria and viruses.

Choosing the Right Air Purifier:

Selecting the right types of air purifiers involves considering individual needs, room size, and specific concerns. A purifier with a HEPA filter is important, while those dealing with odours or chemical sensitivities may prioritise activated carbon filtration. UV-C technology becomes essential when targeting certain bacteria and viruses.

The question of whether air purifiers really work can be answered with a resounding yes. Scientific evidence, coupled with real-life experiences, supports the effectiveness of these devices in improving indoor air quality. However, it is essential to choose the right type of air purifier based on individual needs and to understand the importance of proper maintenance for sustained results. Investing in a quality air purifier can contribute significantly to creating a healthier and more comfortable living environment.

Welcare PureAir Household Air Purifier

Welcare’s PureAir Household Air Purifier is a testament to the brand’s commitment to providing premium healthcare products. Designed for large areas up to 40-50m², this air purifier employs a comprehensive 6-stage purification system, including a Pre – Filter, HEPA (H13) filter, UV-C light, and photocatalyst technology. It effectively eliminates certain airborne viruses and bacteria, dust and pollutants, providing a fresh and healthy air environment. With features like pre-filter, activated carbon filter, and anion air ionizing filter, it filters out dust, pollen, smoke, and certain bacteria, while also removing odours. This model has been lab tested to kill 99.99% of Influenza Virus^ and is a reliable choice for families seeking a reliable and powerful air purification solution.



Welcare PureAir Ultraviolet Air Purifier

The Welcare PureAir Ultraviolet Air Purifier is a compact yet powerful solution suitable for areas up to 12m², such as bedrooms or offices. Harnessing the power of ultraviolet/deep UV-C LED light, it sterilises up to 99.95% of bacteria and viruses, including COVID-19, within 30 seconds*. The inclusion of a HEPA (H13) filter further enhances its purification capabilities. This model operates with low noise, offers an aromatherapy function, and effectively filters dust, pollen, smoke, and bacteria. It’s a versatile and efficient choice for smaller spaces, ensuring a clean and serene breathing environment.

Welcare PureAir Desktop Air Purifier

For those seeking a more compact solution, the Welcare PureAir Desktop Air Purifier is a perfect fit. With a 360-degree 3 IN 1 HEPA (H13) filter, it excels in comprehensive air purification, removing dust, bacteria, and other pollutants down to 0.21 microns at an impressive 99.95% efficiency. Suitable for desktops and small rooms up to 12.36m², it’s ideal for creating a fresh and healthy air environment. This model includes a pre-filter and activated carbon filter, ensuring it effectively removes odours. The added aromatherapy function enhances the overall experience, making it an excellent choice for personal spaces.

Moreover, the significance of Welcare’s air purifiers goes beyond their immediate health benefits. As we delve deeper into an era marked by increased environmental challenges, including air pollution and respiratory concerns, the role of reliable and efficient air purification becomes paramount. Welcare’s commitment to incorporating cutting-edge technologies like HEPA filtration and UV-C light not only addresses the current needs but also positions their products as proactive solutions for the future.

By fostering a home environment with clean, purified air, Welcare’s air purifiers contribute to long-term health resilience. Clean air is not just a commodity; it’s an investment in the well-being of individuals and families, ensuring a sanctuary where everyone can thrive. As we witness the evolving landscape of healthcare, Welcare’s forward-thinking approach to air purification aligns with the growing awareness of preventive health measures.

In summary, Welcare’s range of air purifiers reflects a dedication to quality, innovation, and meeting the diverse needs of consumers. The PureAir Household Air Purifier, PureAir Ultraviolet Air Purifier, and PureAir Desktop Air Purifier all showcase advanced purification technologies, thoughtful design, and a commitment to providing clean and healthy air for families. Whether it’s a larger living space, a compact room, or a personal desktop, Welcare’s range of air purifiers offer reliable solutions for improving indoor air quality and promoting overall wellbeing.

^Report KJ20180416

* Tested SARS-CoV-2 inactivation rate reaches 99.95% or more within 30 seconds.


Do air purifiers work? Everything you need to know according to experts | National Post

What air purifiers can do for sleep, allergies, smoke and COVID – ABC Everyday

Fact or Myth: Do Air Purifiers Work? | Money Reviews

Assessing effectiveness of air purifiers (HEPA) for controlling indoor particulate pollution – ScienceDirect

Assessing effectiveness of air purifiers (HEPA) for controlling indoor particulate pollution – ScienceDirect

Air Purifiers – Welcare