How to make an air purifier more effective?

Author: Earline Tremblay  |  Last update: Monday, September 1, 2025

By following the tips in this article, you can ensure you're getting the most out of your air purifier.
  1. Place the Air Purifier in the Right Location. ...
  2. Clean or Replace the Filters Regularly. ...
  3. Keep the Air Purifier Running Continuously. ...
  4. Keep Doors and Windows Closed. ...
  5. Replace Filters on Time. ...
  6. Perform Regular Maintenance.

How many hours a day should an air purifier be on?

It's advised to keep your air purifier turned on all day and night, even when you're sleeping or not at home. Many people think that switching it off during the night or when they're not present is a logical energy-saving measure, but it is recommended to keep it running constantly.

Should you elevate your air purifier?

Elevate the Air Purifier 3-5 Feet Off the Ground

Many people place their air purifiers on the floor in rooms like the bedroom or living room. While this isn't necessarily wrong, elevating the device 3-5 feet above the ground can improve its performance.

Where is the best place to put an air purifier?

It is generally recommended to place an air purifier in the center of the room or area that you want to purify, rather than in a corner or along a wall. This will allow the purifier to more effectively circulate the air and purify it from all directions.

Are you supposed to leave an air purifier on all night?

Leaving your air purifier turned on throughout the whole night is the best move. United States Environmental Protection Agency depicted that running an air purifier all day long removes certain respirable-size particles like tobacco smoke particles.

DIY cheap & quiet HEPA air cleaner

Do air purifiers run up your electric bill?

Regardless of where you live, the good news is, air purifiers do not use a lot of electricity to operate.

Is it healthy to sleep with an air purifier?

Air purifiers improve sleep by removing irritants and circulating the air in your room. They reduce dust and other particles that float in the air by capturing them and filtering them through HEPA filters and a deodorising filter absorbs unpleasant smells.

Can one air purifier clean an entire house?

When an efficient, effective, safe unit is selected, whole house air purifiers: Offer air purification without “boundaries” – they clean the air in your entire home. Eliminate the need for multiple air purifiers around the house. Provide air purification without taking up space in the living area of the house.

How do I get the most out of my air purifier?

By following the tips in this article, you can ensure you're getting the most out of your air purifier.
  1. Place the Air Purifier in the Right Location. ...
  2. Clean or Replace the Filters Regularly. ...
  3. Keep the Air Purifier Running Continuously. ...
  4. Keep Doors and Windows Closed. ...
  5. Replace Filters on Time. ...
  6. Perform Regular Maintenance.

Is it better to have two small air purifiers or one big one?

Air circulation: If your room has poor air circulation, or is a complex shape (such as an L shape or a long thin shape) then you may benefit from multiple smaller air purifiers to improve ventilation. Two air purifiers placed at different locations in your room may help improve air circulation.

What are the disadvantages of air purifier?

What are the downsides of air purifiers? There aren't a lot of downsides to having an air purifier in your home aside from the financial investment. Many ionizers, especially older models, can generate ozone when they are operating, which is known to exacerbate asthma.

Is it better to put air purifier on floor or table?

For this reason, the equipment can stand in the living room during the day, while in the bedroom at night. Do not forget about the height of the position of the purifier. Specialists recommend placing the device on the floor, because it is near the ground that there is a higher concentration of pollutants.

How do I know if my air purifier is effective?

To test a whole-home air purifier, you must make the space smell. Cook the smelliest food you can think of, let the wet dog indoors, or burn potent incense that produces a noticeable odor. Then, turn the HVAC system fan on and notice as the odor dissipates. That is proof the air purifier is working.

How long does it take to notice a difference with an air purifier?

In a typical home environment, an effective air purifier can start to reduce these pollutants within 30 to 60 minutes. Noticeable improvements in air quality are often observed within a few hours, with significant reductions occurring over 24 hours of continuous use.

Do air purifiers help with dust?

When used correctly, air purifiers with HEPA filters can effectively reduce dust and other allergens in the air. They may be particularly useful if you're allergic to dust mites or pollen or if allergens trigger your asthma.

Is it okay to run an air purifier with the windows open?

If you do not want further contaminants from an outside source entering the room while cleaning it with an air purifier, close both windows and doors for maximum effectiveness. But, if they do happen to be left open, the air purifier will clean the new pollutants that enter the room from a window or door, as well.

Where is the best place to put an air purifier in your house?

Keep your device away from moisture or areas with high humidity. Place your device at least 6 inches from walls, furniture, or other items while in use. Place your air purifier near the most likely source of indoor air pollution. Consider investing in an air purifier that shuts off automatically with a timer.

How long does a room stay clean after an air purifier?

When you have a large indoor space, you may need to run the air purifier longer. But after you run the air purifier on its highest setting for an hour or two, you may its lowest speed. This will help keep the air clean all day. As mentioned above, you may run the machine all night without any worries.

Can you overuse an air purifier?

Air purifiers help reduce allergens and pollutants, but improper use can have health risks. Overuse of ozone-producing purifiers can irritate the respiratory system. Additionally, if filters are not replaced regularly, purifiers may become less effective, leading to poor air quality.

Do air purifiers use a lot of electricity?

Room air cleaners are portable, electric appliances that remove fine particles, such as dust and pollen, from indoor air. A standard room air cleaner, operating continuously, uses approximately 450 kWh per year in electricity. This is more than the energy used by some new refrigerators!

What is the most important room for an air purifier?

Bedroom. The most important room to put an air purifier in is the bedroom — yours as well as the bedrooms of your children.

Is it better to run an air purifier at night or during the day?

This is why most manufacturers will recommend you to leave your air purifier running all day, especially if it comes equipped with an automatic setting. This setting allows your device to monitor the quality of your air in your home for you and to adjust its speed depending on the levels of pollutants that it detects.

Do air purifiers help with mold?

Mold is an obvious health risk in any home, but investing in an air purifier can help limit your exposure. The best among them will ideally offer HEPA-level filtration, with this level of filtration being able to trap up to 99.97% of airborne particles down to 0.3 microns in diameter.

What to avoid in an air purifier?

Avoid Ionizers, Ozone Generators, or Ineffective UV Purifiers. It's essential to avoid air purifiers that introduces more pollution as a byproduct. Ionizers and ozone generators pose health risks, including potential respiratory issues and environmental hazards – after all, ozone is a pollutant.

Previous article
Do rats mourn their dead?
Next article
Do baseboards have to be nailed into studs?