HomeNewsCan Air Purifiers be used 24X7 at homes?

Can Air Purifiers be used 24X7 at homes?

Should you keep the air purifiers on 24X7 at homes? We tell you whether leaving your air purifier on all the times is good or bad.

Air purifiers have become a necessity these days for everyone as a result of increasing pollution everywhere. With the increase in air pollutants, dust, and dirt, no doubt an air purifier has become every household need now. In addition, one should consider getting an air purifier if you are allergic to dust or suffer from asthma.

Even if you don’t have any allergies, you should still be open to going for an air purifier because you don’t want to breathe the polluted air. Notably, many people buy them but still don’t keep their purifiers on all the time. So now the question is should you keep the air purifiers on 24X7 at homes?

In this article, we will let’s take a closer look and discover whether leaving your air purifier on all the times is good or bad.

How do the air purifiers work?

To keep your home’s atmosphere healthy, the purifiers remove contaminants from the air in a room. This improves indoor air quality. They consist of a filter or multiple filters and a fan to pull the air in your home. When the air moves through the filter, pollutants and particles are captured. Finally, the clean air is pushed back out to your room. These purifiers are incredibly beneficial for allergy sufferers. Persons who suffer from breathing issues should also go for an air purifier. After continued use, it is said that you might experience fewer allergic reactions and asthma symptoms.

What happens when you turn off your purifier?

The air in a room continuously changes as pollutants enter your home every time you open a window or enter your house. It is to be noted that air purifiers can take some time to purify the air inside of a room, and once you turn off the purifier, pollutants begin to accumulate again. And when you switch on it again, it has to start from the beginning and will purifier will take time to remove pollutants.

Can You keep on Air Purifier on continuously?

Yes, you can leave the air purifier on continuously. This will allow the purifier to remove the new contaminants when they are introduced in the room. When the air purifier is ON, make sure to keep the windows and doors closed. Otherwise, an indefinite time will be taken by your purifier to clean the air in your room. Also, air purifiers work best in an enclosed space.

Of course, ventilation is necessary for healthy indoor air. You can not keep all doors and windows of your home closed 24×7. So it is advised that you can open the windows occasionally to bring the fresh air into the room. However, make sure that you close the doors and windows when you use the air purifier.

It is recommended not to switch off your air purifier at any time of the day or night, even when you’re sleeping so that you can breathe clean air. Many people think to switch off the purifier during the night or when they’re not present in the day. They believe this would help them save energy. But in reality, you shouldn’t turn it off anytime. Instead, to save money and conserve energy, look for the air purifiers that hold Energy Star-rating.

Can You Leave the Purifier ON 24X7

The air quality in a room keeps changing, so you should switch on the appliance 24/7. It is recommended that when you run it 24/7, just run at lower speeds. Many air purifiers have an auto mode feature that regulates the fan speeds. If your air purifier doesn’t have an auto mode, leave it ON at the lowest fan speeds for 24 hours.

And it is a myth that continuous usage of air purifiers will increase the energy bill by consuming more energy. For 24/7 operation, you can opt for an energy-efficient model of the purifier. 

Use case Scenario: If you take an air purifier consuming an average 50W power, it will use 1.2KWH of electricity in 24 hours. This roughly translates to Rs 250 as the monthly energy bill assuming a tariff rate of 7 Rs per unit. So, leaving your air purifier on all the time won’t shoot up your bills much.

For the cleanest air, we recommend you run your device for 24 hours a day. If you do so, your purifier will eliminate contaminants such as smoke, bacteria, viruses present and pet dander in the air. If you switch it off in between, it will stop filtering the air. Just consider the brand name if you plan to run it 24/7 when choosing a home air purifier.

Can You Leave An Air Purifier On All Night?

Yes, in the night also you can leave an air purifier. They have been manufactured so that running it all day and night use won’t cause any safety hazards. Additionally, there are many air purifiers on the market that emit low noise so that you can sleep peacefully. The best air purifier should have noise levels between 20-40dB at the lowest speed available for the fan and 50-70dB for the loudest ones available. If it is anything more than this, you should probably avoid getting it.

Disadvantages Of Leaving An Air Purifier On 24X7

It’s believed that air purifiers consume a ton of electricity. But this is a myth now. In reality, they do not consume a huge amount of power. Even if you are they will cost you a bomb, many air purifiers are made to be energy efficient. In fact, these are now like other home appliances like a refrigerator which can be switched on for a full day.

However, it is worth keeping in mind that running the air purifier all day and night will mean replacing the filters more frequently. Therefore, when the filters get dirty, it would affect the performance of the air purifier, and one should change the filters before they get too dirty for optimal performance.


It is very safe to leave your air purifier running all night and all day. If you leave your air purifier on all the time, the air will be filtered continuously, and new contaminants will be removed as they are introduced.

In fact, leaving it running for a longer time will give you far better results than merely running it for a few hours. And these machines are designed to work continuously. So the longer they run, the cleaner the air will be.

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