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Do You Know The Negative Side Effects Of Air Purifiers?

By Elysia
Elysia is a seasoned content enthusiast who has been steering the creative ship at Bebest since 2022.

In the pursuit of cleaner and healthier indoor air, air purifiers have emerged as popular solutions. These devices promise to alleviate allergies, reduce pollutants, and create a fresher atmosphere within our living spaces. However, as with any technology, there’s a flip side that deserves our attention: the negative side effects of air purifiers. Are you curious about what these negative sides are? This article will help you answer that question.

10 Negative Side Effects of Air Purifiers

In this part, we will help you to explore 10 negative side effects of air purifiers. Let’s get started!

1. Ozone production

One of the adverse outcomes linked to air purifiers involves the emission of ozone, a gas generated during the operation of specific air purifying technologies like electrostatic precipitators or ionizers. Despite the beneficial role ozone plays in the upper atmosphere by shielding the Earth from harmful UV rays, ground-level ozone can pose health risks when inhaled in substantial amounts.

Ozone production
Ozone production

Symptoms such as chest discomfort, coughing, breathing difficulties, and throat irritation can arise due to ozone exposure. Moreover, its impact extends to exacerbating conditions like asthma and other respiratory ailments. Extended periods of ozone exposure hold the potential to cause irreversible lung damage and enduring health complications.

Notably, not all air purifiers produce ozone. Some models, like those with HEPA filters, do not release ozone as a byproduct. If you’re considering getting an air purifier, research the filtration technology used and ensure it doesn’t emit ozone.

2. Increased electricity bill

The other negative side effect of air purifiers is increasing electricity bills. Air purifiers necessitate electrical power to operate and can utilize a considerable quantity of energy, contingent on the specific model and the room’s dimensions.

This escalated energy usage not only amplifies your electricity charges but also imposes an adverse influence on the ecosystem, adding to the discharge of greenhouse gases and the alteration of the climate.

To diminish the electricity consumed by an air purifier, selecting an energy-efficient variant and its prudent usage become pivotal.

Increased Electricity Bill
Increased Electricity Bill

3. Incomplete filtration

Another adverse outcome seen in certain air purifiers is inadequate filtration. Some air purifiers might not effectively capture pollutants, permitting them to remain airborne. This situation can arise if the air purifier lacks a top-tier filter or if the filter isn’t replaced on a regular basis.

Incomplete filtration bears risks, as unfiltered pollutants can exacerbate pre-existing health conditions or even initiate new ones. For instance, fine particulate matter (PM2.5) has been associated with respiratory ailments, cardiovascular issues, and various health concerns.

To ensure thorough filtration, you should opt for an air purifier incorporating a high-quality filter tailored to the specific pollutants you’re addressing. HEPA (High-Efficiency Particulate Air) filters are widely regarded as the benchmark for air purifiers. It has a 99.97% efficiency in capturing particles as minute as 0.3 micrometers.

Incomplete filtration
Incomplete filtration

4. Dryness and irritation

Air purifiers also can result in dryness and irritation in the eyes, throat, and skin. This is attributed to the potential reduction of humidity levels by air purifiers, particularly in regions with initially low humidity.

Dry air has the potential to trigger a range of health issues, encompassing dry skin, parched eyes, and a sore throat. It can even exacerbate pre-existing respiratory conditions like allergies or asthma. Furthermore, the lack of moisture in the air can inflict damage on household belongings, including furniture and wooden floors.

To avert the discomfort arising from air purifiers, maintaining optimal humidity levels within your residence is paramount. An effective strategy is to use a humidifier alongside the air purifier to infuse moisture into the air.

Alternatively, you could consider selecting an air purifier equipped with an integrated humidifier. Such units blend the advantages of air purification and humidity enhancement, furnishing both purified and moistened air.

Dryness and irritation
Dryness and irritation

5. Noise pollution

Air purifiers can lead to noise pollution, with some models generating significant noise, especially at higher settings. Consistent exposure to noise can induce stress, irritability, and reduced focus. Sleep disturbances and subsequent health issues can also ensue.

To mitigate air purifier noise, you should opt for models advertised as “quiet” or “ultra-quiet” and check their decibel levels before purchasing. You also ought to employ lower settings or limit usage during noise-sensitive periods. Additionally, prevent noise from vibrations by placing the purifier on a stable surface and securing all components.

Noise pollution
Noise pollution

6. Useless for smoking

Just like tackling potent cooking odors, swiftly eliminating smoke smells isn’t a simple task. Particularly in cases of residences with a smoking background, the persistent scent is a challenge that air purifiers may struggle to promptly eliminate.

The texture of cigarette and tobacco smoke typically contains a clingy residue, causing it to adhere to furniture, curtains, walls, and floors.

For such circumstances, ozone generators are commonly employed. Air purifiers can not completely reduce the smoke because the filter can not reject them clearly.

7. Ineffective for immediate smells

While several air purifier brands are effective at eliminating odors, the reality is that air purifiers are mainly ineffective in swiftly dispelling immediate odors. By “immediate,” we refer to recent kitchen odors, chemical scents, or even abrupt bathroom odors.

Indeed, leaving an air purifier with a carbon filter in your home can eventually produce a more pleasant aroma upon your return. However, attempting to rapidly eliminate potent odors is a challenging endeavor with an air purifier.

8. Air purifiers have the potential to worsen allergies

Air purifiers could worsen allergies if they draw airborne allergens in the room towards themselves. This can lead to the accumulation of highly concentrated allergens near the purifier’s filter.

Air purifiers have the potential to worsen allergies
Air purifiers have the potential to worsen allergies

9. Focus on microbes and parasites

Air purifiers typically function akin to reverse fans, aiming to draw allergens from the air and into a filter. Consequently, the region around the air purifier can become more concentrated with airborne particles as the airflow is directed toward the device. This dynamic contributes to the recommendation against sleeping next to an air purifier. Require regular upkeep

To keep an air purifier working effectively, it’s important to regularly clean and replace the filters. This also applies to UV lights and modules, as they may lose their effectiveness over time and require replacement.

10. The cost of air purifiers is high

Air purifiers stand as some of the pricier household devices on the market. The cost associated with numerous air purifiers prompts contemplation on the factors contributing to such a steep price for a filtration apparatus. Price range of air purifiers varies extensively based on a multitude of elements. Firstly, the technology embedded within the purifier plays a pivotal role. More advanced systems equipped with HEPA filters, activated carbon, or UV-C sanitation tend to come at a higher cost due to the intricate mechanisms involved in efficiently capturing and neutralizing pollutants.

Moreover, the capacity of the purifier, indicated by the area it can cover or the volume of air it can process per hour, significantly influences the pricing. Units designed for larger spaces necessitate more robust motors and larger filter sizes, boosting the overall manufacturing cost. Additionally, the brand reputation and associated research and development costs can also contribute to the final price point. Brands with a longstanding presence in the air purification industry might price their products higher to reflect their expertise and investment in refining their technology.

The cost of air purifiers is high
The cost of air purifiers is high

Tips For Reducing Negative Side Effects Of Air Purifiers

Let’s check some tips for reducing the negative side effects of air purifiers.

  • Choose ozone-free models: This minimizes the risk of ozone emissions, which can have adverse effects on health.
  • Select the right size: An oversized unit may consume more energy than necessary, while an undersized one might not effectively clean the air.
  • Use certified filters: When replacing filters, use those recommended by the manufacturer. Certified filters maintain optimal performance and reduce the chance of producing harmful byproducts.
  • Follow manufacturer guidelines: You should adhere to the manufacturer’s instructions for usage, maintenance, and filter replacement. This helps maintain the air purifier’s efficiency and prolong its lifespan.
  • Proper ventilation: It is important to keep the room well-ventilated while using the air purifier to prevent a buildup of ozone or other pollutants. Open windows periodically to let in fresh air.
  • Limit continuous use: While air purifiers can be run all day, consider using them strategically during times of higher pollution or when indoors for extended periods.
  • Noise levels: Select an air purifier with acceptable noise levels, especially if using it in sleeping areas. Excessive noise can disrupt sleep and cause discomfort.
  • Regular cleaning: Clean the air purifier’s exterior and interior components as recommended in the manual. Dust and dirt accumulation can impact its effectiveness.
  • Combine with natural ventilation: While air purifiers are effective, they work best in conjunction with natural ventilation. Open windows when outdoor air quality is good to improve indoor air circulation.

Negative Side Effects Of Air Purifiers: FAQs

Negative Side Effects Of Air Purifiers: FAQs
Negative Side Effects Of Air Purifiers: FAQs

Is it OK to sleep in a room with an air purifier?

Sleeping in a room with an air purifier is generally safe and can even offer benefits. Suppose the air purifier is designed for continuous operation and emits minimal noise. In that case, it can improve the air quality in your sleeping environment, potentially leading to better sleep and reduced allergy symptoms. However, it’s important to choose a model with appropriate noise levels for your comfort. 

Is it bad to run an air purifier all day?

Running an air purifier all day can have both advantages and disadvantages. On the positive side, continuous operation ensures consistent air quality improvements, particularly in spaces with high levels of pollutants. However, there are potential downsides to consider. Continuous use can lead to higher energy consumption, resulting in increased electricity bills. Moreover, prolonged operation might accelerate wear and tear on the device, potentially shortening its lifespan.

How do I know if my air purifier produces ozone?

To determine if your air purifier emits ozone, carefully review the product specifications and user manual provided by the manufacturer. Look for mentions of technologies like electrostatic precipitators or ionizers, which are more likely to generate ozone. Models equipped with HEPA filters are generally ozone-free. Additionally, you can research the specific model online or reach out to the manufacturer’s customer support for clarification


Even though air purifiers can greatly enhance indoor air quality, it’s essential to acknowledge the possible adverse outcomes. Issues such as ozone emission, elevated energy consumption, inadequate filtration, dryness and irritation, and noise pollution can arise from their usage.
Nonetheless, these negative side effects of air purifiers can be mitigated through responsible practices. Opt for an air purifier that aligns with your requirements and inclinations, and seek guidance from a medical expert if you harbor worries about potential health repercussions stemming from air purifier usage. By exercising caution and proper care, these concerns can be effectively addressed.

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