The 5 Best Inexpensive Air Purifiers Under $100 (2025)
Tayyabah Zahoor
March 26, 2025
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Are you wondering if it’s okay to keep your air purifier running 24/7? The short answer is yes, and in this blog, we’ll explore why continuous operation is generally recommended by experts. We’ll dive into the benefits, address common concerns, and provide tips for optimal use.
Running your air purifier all the time makes sense for several reasons:
Air purifiers work best when they operate continuously, as it takes time to clean the air in a room.
Once an air purifier cleans the air, contaminants start to accumulate again if the device is turned off.
Residential air purifier systems are built for 24/7 use, engineered to run safely even when you’re not at home or asleep.
Continuous operation ensures a constant level of air purification, especially beneficial for those with respiratory conditions or allergies.
Many air purifiers are designed to operate quietly, making them suitable for bedroom use and potentially improving sleep quality.
Many people worry about the energy usage of running an air purifier all the time. Here’s why those concerns might be less significant than you think:
Modern air purifiers are designed to consume minimal energy, often comparable to a standard light bulb.
Some models, like those with DC motors, are particularly energy-efficient and can be run continuously without significant cost concerns.
Reality: While an air purifier significantly reduces dust, pet dander, and airborne particles, it won’t completely eliminate the need for dusting. However, you’ll likely find yourself dusting less often.
Reality: High-quality air purifiers are designed to run continuously, even at higher speeds. Many models use premium-grade fans that are engineered for durability and efficiency.
Reality: Not all “HEPA” filters meet the same standards. Certified HEPA filters must capture at least 99.95% of airborne particles. Look for filters certified to ISO Standard 29463 or EN Standard 1822 for the best performance.
Reality: Air purifiers do not make you sick. This is a common misconception that has been debunked by experts.
Reality: While some air purifiers can produce ozone, mechanical purifiers with HEPA filters do not have this issue.
Select an air purifier rated for the size of your room or space.
After a few hours of operation, you can switch to a lower setting to save energy while maintaining air quality.
Some air purifiers can monitor air quality and adjust their settings automatically for optimal performance.
Clean or replace filters as recommended by the manufacturer to ensure the unit operates efficiently.
Position your air purifier in high-traffic areas or spaces where pollutants are most likely to accumulate.
This maximizes the efficiency of your air purifier.
If you only have one air purifier, consider placing it in the bedroom where you spend a significant portion of your time.
For office spaces, point the clean air flow towards your breathing zone for maximum benefit.
Continuous air purification helps reduce allergens, pet dander, and irritants.
Persistent odors from cooking, pets, or smoking are better managed with constant air cleaning.
Clean air can contribute to better sleep quality, particularly for individuals with respiratory issues or sensitivities.
Running your air purifier all the time is generally recommended by experts. The benefits of continuous clean air far outweigh the minimal energy costs associated with operation. Modern, energy-efficient models make it easier than ever to maintain a healthier indoor environment without worrying about excessive electricity usage or wear and tear on the device.
By keeping your air purifier running 24/7, you ensure consistent air quality, reduce allergens and pollutants, and potentially improve your overall health and well-being. The small investment in energy costs is offset by the significant benefits to your indoor air quality and health.
Follow the manufacturer's recommendations, which typically range from 3 to 12 months depending on usage and air quality.
Yes, running it continuously helps maintain clean air and prevents pollutant buildup.
No, most modern air purifiers are energy-efficient and have minimal impact on electricity costs.
Tayyabah Zahoor is an expert writer with a Bachelor's degree in Physics. She specializes in creating content for affiliate websites, particularly about air purifiers. Using her scientific knowledge, she compares different air purifiers by analyzing their features and effectiveness. This helps her provide clear and helpful information to consumers looking for the best options.