Key Takeaways for Determining if an Air Purifier is Working
1. Check the Air Filters
One of the easiest ways to determine if your air purifier is working properly is to check the condition of the air filters. As air passes through the filters, particles and pollutants get trapped. Over time, this will cause the filters to become dirty or clogged.
If your filters look dirty, have debris buildup, or are discolored, it's a clear sign that they are trapping contaminants and your purifier is functioning.
Be sure to replace filters regularly as recommended by the manufacturer to maintain optimal performance. If you have recently replaced your filter and your purifier seems to not be working, double check that the filter is installed correctly.
2. Monitor Air Quality
Using an air quality monitor is one of the best ways to objectively measure the effectiveness of your air purifier. A monitor can sample the air to detect levels of common indoor pollutants like particulate matter, VOCs, carbon dioxide, and more.
Take readings when the purifier is on and off to see the impact it is having on your indoor air.
Consider getting a monitor with a digital display so you can track air quality over time. Some monitors may also connect to mobile apps so you can monitor from anywhere.
3. Conduct an Airflow Test
Most air purifiers use internal fans to draw air through the filters before circulating cleaned air back into the room. Test the strength of the airflow coming out of your purifier to determine if it is working optimally.
You can hold a piece of tissue near the air outlet to see if it blows in the breeze, or hold your hand in front of it to feel the air movement. Strong, consistent airflow is a sign your purifier is working correctly.
4. Listen for Fan Noise
Since air purifiers rely on internal fans, listening for the hum of the fan motor is a simple way to confirm the appliance is powered on and operating. If your purifier is completely silent, there may be an issue with the fan or motor.
However, some models intentionally operate very quietly. Check your user manual to understand the normal noise level for your specific purifier.
5. Notice Changes in Air Quality
With regular use, a functioning air purifier should reduce airborne allergens, odors, smoke, and other pollutants in your environment. After running your unit, take notice of how the air smells and feels.
The air should seem fresher and cleaner if your purifier is working effectively.
Consider keeping a log to track air quality over time. Take notes on air purity, odors, and your own physical symptoms when using your purifier compared to when it is off.
Maintaining Your Air Purifier
To ensure your air purifier continues functioning properly, be sure to perform regular maintenance according to the manufacturer's recommendations.
- Replace filters and pre-filters as needed
- Clean the exterior housing periodically
- Check for any air leaks, damage, or unusual noises
- Follow requirements for filter resetting after replacement
- Ensure proper airflow and ventilation around the unit
Well-maintained air purifiers will provide you with cleaner, healthier indoor air for years to come.
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