
Smog is one of the greatest environmental threats in Poland, especially during the autumn and winter seasons. High concentrations of suspended particulate matter and toxic compounds have a real impact on the health of Poles – especially children, seniors, and allergy sufferers. Therefore, it is becoming increasingly common air purifiers are becoming standard equipment in apartments and houses. Do they actually work? How do you choose an effective model?
What is smog and why is it dangerous?
Smog is a mixture of suspended particulate matter (PM10 and PM2.5) and harmful chemicals such as benzo[a]pyrene, nitrogen oxides, and heavy metals. It is most often caused by the combustion of solid fuels, vehicle traffic, and unfavorable weather conditions.
Exposure to smog can be hazardous to health. Prolonged exposure to smog can lead not only to poor concentration and sleep quality, and worsening allergy and asthma symptoms, but also to weakened immunity. Furthermore, inhaling polluted air is also a cause of respiratory and circulatory system diseases.
Therefore, limiting exposure to places with high levels of air pollution is crucial for health. Importantly, smog isn't just a threat outdoors. More and more people are asking whether smog enters their homes, even with closed windows? Unfortunately, it does. PM2.5 particulate matter, one of the components of smog, is so fine that it penetrates through microcracks, ventilation systems, and doors.
How do air purifiers work?
This is why air purifiers are increasingly being used indoors. These modern devices operate on a multi-stage filtration system that effectively removes pollutants from the air. This solution eliminates the vast majority of airborne contaminants—from allergens to suspended dust particles.
The most important elements of the purifier are:
- pre-filter – captures dust, hair and fur;
- HEPA filter – removes up to 99,97% of PM2.5 particles, bacteria and allergens;
- carbon filter – absorbs odors and harmful gases;
- air quality sensors – automatically adjust the operating mode.
This allows the purifier to significantly reduce indoor smog levels, improving breathing comfort. Furthermore, it ensures healthy, fresh, and odor-free air. This minimizes user concerns about illness, allergies, and weakened immunity.
Does an air purifier operate 24/7? Generally, these devices are designed to operate 24/7. Furthermore, in continuous operation, more advanced purifiers automatically regulate the air purification intensity.
Does an air purifier really help with smog?
Research and user experience clearly demonstrate that air purifiers effectively reduce indoor particulate matter levels by up to several dozen percent within minutes. The intensive and efficient operation of filtration systems allows for rapid air treatment, eliminating the need for the purifier to operate around the clock.
At the same time, it is worth remembering that the best results in eliminating pollutants are achieved when:
- the device is selected to suit the size of the room,
- filters are replaced regularly,
- the purifier operates in continuous mode,
- the rooms are periodically aired during hours of low smog concentration.
Our customers often ask if one air purifier is enough for an entire apartment? Unfortunately, it usually isn't. Air purifiers are like air conditioning—if a device is installed in one room, the others will feel its effects, but you can't count on a single purifier to handle the air in an entire apartment. For best results, it's best to place the device in the room where you spend the most time (e.g., bedroom, living room) or use multiple air purifiers.
How to choose an air purifier to fight smog?
An air purifier should be individually selected for each room. When choosing a device, it's worth considering:
- CADR performance adapted to the surface,
- presence of a HEPA filter class H13 or H14,
- effective carbon filter,
- noise level (especially for bedrooms),
- costs and availability of replacement filters.
If you want the most effective pollutant removal, check whether your chosen purifier has additional features that impact indoor air quality and functionality. Pay particular attention to ionization, night mode, and app-based control.
When buying a new appliance for your home, it's always worth checking its energy efficiency. So, does an air purifier use a lot of electricity? Probably not. Most appliances use as much energy as a small LED light bulb, especially in automatic mode.


