Do Air Purifiers Improve Indoor Air Quality?

Portable air purifiers, also known as air sanitizers, are designed to filter the air in an individual room or area.


was associated with a 9.4% increase (95% confidence interval, 0.9-18%) in the reactive hyperemia index and a 32.6% (4.4-60.9%) decrease in C-reactive protein, according to two studies by Brauner et al. and Allen et al. Indoor air pollution can have a detrimental effect on the heart, respiratory and even neurological systems. Chemicals and gases from common household products can accumulate in the lungs, and airborne particles are so small that they can penetrate the blood-brain barrier, affecting the brain and cognitive functions. Source and ventilation control are important measures for improving air quality, but they cannot solve all air quality problems.

Air purifiers can fill the gaps left by other air quality improvement techniques, and they can also represent an integral measure of indoor air quality control. Air purifiers can help eliminate or reduce contaminants by using a combination of physical filters, devices, chemicals and techniques. By doing so, air purifiers can improve your home's indoor air quality, help relieve allergy and asthma symptoms, and remove toxins from the air. The best air purifiers will be able to capture most of these and help improve indoor air quality. To avoid sleep interruptions caused by allergens, it's best to use HEPA air purifiers because they filter out most allergens from the room.

The fan (or sometimes an internal fan system) draws in air and that air passes through the internal filters. Many experts say that using an air purifier is an effective way to reduce exposure to wildfire smoke inside your home. If you're interested in buying an air purifier that uses ionizers, make sure it doesn't produce dangerous levels of ozone (a gas composed of three oxygen atoms that is often marketed to help break down pollutants), as ozone could irritate the lungs and further aggravate asthmatic conditions. Some air purifiers produce ozone, either as a by-product of the filtration process or by directly generating ozone to clean the air. This device has been proven to be 99% effective at killing germs, bacteria and viruses on surfaces and in the air throughout the home. The ACH rating refers to the number of times per hour the entire volume of air in the room is filtered. Before you invest money in an air purifier, you should consider running an air quality test at home first to see if you need it.

In order to extract 420 liters of oxygen, which is crucial for human survival and functioning, a total of 10,000 liters of air enter the lungs every day. HEPA filters are a fibrous pleated air filter found in many vacuums and air purifiers on the market. They theoretically remove at least 99.97% of dust, pollen, mold, bacteria and any other particles in the air with a size of 0.3 microns or larger. For a full range of contaminant removal, an air cleaner must be able to trap both harmful particles and gases. Air purifiers usually consist of a filter, or several filters, and a fan that sucks in and circulates the air. Some air purifiers can only trap one or the other, although other air purifiers have a combination of filters that can remove both from the air.