The True HEPA filter removes up to 99.97% of airborne particles as small as 0.3 microns including smoke, dust, pollen, pet hair and dander, mold spores and dust mite debris. Cleaning the air of these pollutants can allow better breathing leading to better sleep.
Air pollution does not stop when we sleep, so the simple answer is yes, if you want the full benefits of your air purifier it should be running in your bedroom when you sleep. We can explain this by looking at the two basic components of an air purifiers, a filter and a fan.
Yes. If you would like to enjoy improved air quality, then running your air purifier during the night is highly recommended. Pollutants and allergens are still around during the night time, so filtering them out of your air on a continuous basis is ideal.
Because they force air through their filters to clean it, leaving an air purifier on consistently is the only way to maintain the highest possible level of air quality in a room or home.
Headaches, sore throat, coughing, Asthma attacks, and difficulty breathing are a few of the symptoms that can be brought on by some air purifiers. Yes, that's right. Your air purifier may actually aggravate many of the health issues you hoped it would solve.
Won't remove every particle: Unfortunately, HEPA filters will not remove pollutants from the air that are smaller than 0.3 microns, including viruses, some bacteria, and volatile organic compounds (VOCs). VOCs are household items like hairspray and ammonia that are too small for a HEPA filter to eliminate.
Many ionizers, especially older models, can generate ozone when they are operating, which is known to exacerbate asthma. However, some manufactures have stated their newer models do not produce ozone or other reactive oxygen species.
HEPA filters are limited to particulates. There are harmful gases and fumes that may just pass through a HEPA filter. HEPA filters may cause air to become too dry. Finally, some HEPA filters may produce ozone, which is an unhealthy gas that can irritate the lungs.
Our verdict:
Air purifiers contribute less than 1% to household energy consumption. That's only about 12% of the energy harnessed to run a fridge. You can expect to pay around $22 annually to power an air purifier, with an average daily consumption of 15W.
When using an air purifier, it is generally recommended to keep the windows closed to ensure that the purifier can effectively filter the air in the room. This is because opening windows can allow pollutants, allergens, and other particles to enter the room and reduce the effectiveness of the air purifier.
The best place to put an air purifier is somewhere in your breathing zone. The closer the unit is to your head, the shorter distance clean air has to travel before it reaches you. In the bedroom, this usually translates to putting the air purifier on a nightstand or small table close to the bed.
If using an air purifier in a bedroom, it's recommended to place it between six (1,8m) to ten (3m) feet away from the head of the bed. It's best to face the air intake towards the bed so the air around the sleeping area is filtered first.
The device will work most efficiently if you place it in the central part of the room and at a close distance from windows, because it is through them that dirt mainly penetrates. If you want to use the device in the bedroom, it is best to place the air purifier between the window and the bed.
HEPA filters, while very effective, are thick and dense. These qualities can substantially interfere with the airflow process of your HVAC equipment.
Give your purifier room to breathe
Try to place the air purifier at least 18 inches from the wall and any furniture, ideally near the midpoint of the room you're using it in.
The air cleaner with the HEPA filter continuously removed the infectious SARS-CoV-2 from the air in a running-time-dependent manner, and the virus capture ratios were 85.38%, 96.03%, and >99.97% at 1, 2, and 7.1 ventilation volumes, respectively.
To be sure, there's a good argument for using air purifiers in every room. With several air purifiers spaced throughout your house, you'll have multiple units circulating air more rapidly. This, in turn, will promote cleaner air by giving you more air changes per hour (ACH).
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.
In many cases, one air purifier is sufficient for a single room, as long as it's rated to cover the square footage of that room. However, extremely large rooms, or rooms with ceilings higher than 8 ft.1, might require more than one air purifier due to their larger square (or cubic) footage.
HEPA Air Purifiers typically have an 87-99 percent first-pass efficiency rate, meaning HEPA Air Purifiers catch more particles faster. Electrostatic Air Purifiers have a 60-80 percent first-pass efficiency rate and require a longer amount of time to improve your indoor air quality.
ULPA filters trap more and smaller particulate matter than HEPA filters. ULPA filters are 99.999% effective at removing submicron particulate matter of 0.12-micron diameter or larger, while HEPA filters are 99.97% effective for eliminating particulate matter of 0.3-micron diameter or larger.
HEPA filters will not remove most viruses, because they are simply too small. HEPA filters will also not remove VOCs, or volatile organic compounds, as they are also too small. Still, HEPA filter technology can be combined with other technologies that will remove these things from your air too.
While an air purifier can work to remove some indoor pollutants, there is very little medical evidence that they will directly improve your health. However, allergy or asthma sufferers might find an air purifier with a HEPA filter is of use when it comes to removing fine airborne particles.
Air purifiers are devices designed to clean and sanitize the air in your home. They remove impurities in the air, including dust, smoke, odors, and other air pollutants. "Air purifiers (also called air cleaners) are designed to remove small particles from the air we breathe indoors," Mendez says.
True HEPA filters are effective at removing ultra fine particles (think: dust, dander, pollen, mold and other common allergens in the home). The industry standard is that the unit must be able to remove at least 99.97% of particulates measuring 0.3 micron diameter in a lab setting.