Have you recently bought an air purifier for your home? Air purifiers are great at keeping your indoor air clean and fresh.

But, you might not know the best way to use it. How long do you run it for? Does my air purifier have different settings? Should I leave it on all day? Can I?

Leave your air purifier on all day, if possible. It will remove dirt, allergens, smoke, and odors from your indoor air. The longer you can leave it on, the cleaner your air will be. There’s no clear downside to leaving your air purifier on 24/7. They are built to be left on all day and night.

Is it safe to leave an air purifier on all day?

Yes, it’s safe to leave your air purifier on all day. But, you need to make sure that you clean the filters about once a month. The filters trap heavy amounts of dust and allergens which can be harmful to sensitive groups if they’re not cleaned consistently.

Do air purifiers remove cooking smells?

Not all air purifiers remove cooking smells. They must have an activated carbon filter to neutralize odors from your kitchen air. A HEPA filter alone will remove dust and dirt. But it’s not effective at trapping smaller particles that produce a strong odor.

For more information about air purifiers and odors, check out this article.

When should I turn my air purifier off?

If possible, keep your air purifier on all the time. This will clean your air most efficiently. Most air purifiers have a low, medium, and high setting. So if you are bothered by noise, turn your air purifier to low while you sleep. Otherwise, you can run it during the day.

Should I sleep with my air purifier on?

Yes, sleep with your air purifier on if you want the cleanest, freshest air possible. If you turn your air purifier off, after a couple of hours the air starts to get dirty again. You spend a large chunk of your day sleeping, so keeping your air clean is a huge benefit to your health. 

How much electricity does an air purifier use?

Small air purifiers use under 50 watts of electricity, while medium air purifiers may use up to 100 watts or more.

It is quite cheap to run your air purifier. Most air purifiers will cost between $5 and $10 per month to run 24/7. Each state has a different rate for electricity, but you can find yours with a simple Google search.

Should my air purifier be on the floor?

Put your air purifier on a counter or your bedside for the best results. It will capture contaminants closer to the ceiling faster than an air purifier on the floor. You don’t have to put yours on a counter but it will be a little more efficient at cleaning your air.

How long should I leave my Dyson air purifier on?

Some Dyson air purifiers have an “Auto” setting. It detects the number of contaminants and dust in the air and turns on automatically when necessary. If yours doesn’t have an auto setting, you can run it between 12 and 24 hours. The more often you run your air purifier, the better it’ll do at cleaning your air.

Should you run an air purifier with the windows open?

You can run your air purifier with the windows open if you’d like. It’ll improve your indoor ventilation. Just don’t put the air purifier too close to your window. It may get overworked trying to filter contaminants from the outdoor air coming in. This’ll leave your indoor air dirtier. Not to mention your air purifier won’t last as long as it should.

I would crack open a window, put your air purifier on a counter, and run it on Auto. Run it for a few days and see if you notice any difference in your air. If not, try moving it to the floor or manually controlling the purifier.

If you want to open a window in addition to running your air purifier, be mindful of the outdoor air quality. If it’s unhealthy for sensitive groups or unhealthy, you’ll want to keep your windows shut.

To check the air quality in your area, take a look at this link. Check your air quality often if you:

• Live in an area with frequent fires
• Are next to a factory or power plant
• Live next to a big city

Learn more ways to improve your indoor air quality in this complete article.

How long does it take an air purifier to clean a room?

This mainly depends on the setting of the air purifier, your current air quality, and the size of your room. It can take your air purifier 30 minutes to clean air in a small room. For larger rooms, it can take up to 2 to 3 hours.

Invest in an air quality monitor to test your air quality. The worse it is, the longer you’ll want your air purifier running.

This doesn’t mean that you only need your air purifier on for two to three hours, though. New contaminants will continuously move into your room, so it’s important to keep your air purifier on.

Is it better to open windows or use an air purifier?

That depends primarily on your outdoor air quality. If you’re in the green (check here), opening windows is easiest. You don’t need to buy an air purifier and it doesn’t cost any money!

You can also open windows and use your air purifier. Just crack a window, set your air purifier on a counter, and turn it on. This will improve your indoor ventilation and clean your air.

If your air quality is orange or red, you want to use an air purifier. Opening windows will only bring the smoky air into your home and hurt your indoor air quality.

If you’re on a tighter budget, air purifying plants might be the way to go. Take a look at some great ones right here.

Can an air purifier dry out air?

No, an air purifier cannot dry out your air. It filters out dust, pollen, and other particles from your kitchen air. But it does not remove moisture.

If you are looking to remove moisture from your air, invest in a dehumidifier. These can be great in especially humid areas. Typically, 30% to 50% humidity is an acceptable level in homes.

So if you live in an area above 50% humidity, you may want to invest in a dehumidifier.

Do air purifiers make the room cold?

Air purifiers do not make your room cold. They do not have any cooling mechanism like an air conditioner. Air purifiers merely remove dust and particulate matter from your indoor air.

We hope our FAQ article on air purifiers helped you find one that you like. Thanks for reading!