What are Home Air Purifiers and How Do They Work?

Portable air purifiers, also known as air purifiers or air sanitizers, are designed to filter the air in an individual room or area. Central heating or HVAC filters are designed to filter the air throughout the home. Room air purifiers are designed to filter the air in a single room, not the entire house. A whole-house system is linked to a home's heating, ventilation, and air conditioning system.

Air purifiers usually consist of a filter, or several filters, and a fan that sucks in and circulates the air. As air moves through the filter, contaminants and particles are captured, and clean air is expelled into the living space. Filters are typically made of paper, fiber (often fiberglass), or mesh, and require regular replacement to maintain efficiency. There is a lot of misinformation about “whole house air purifiers”; some air purifiers are marketed as such, but in reality they are just large portable units. While they can filter relatively more air, larger portable filters don't clean all the air in your home.

A true whole-house air purifier is integrated into the HVAC system. It could be as simple as a filter where the air return enters the oven (which is primarily intended to protect oven components from debris, rather than purify the air), or it could be an electronic system integrated into the duct network. To truly be considered a whole-house air purifier, the filter must be placed in the airflow of the ducts of your HVAC system. An air purifier or air sanitizer is a device that removes pollutants from the air of a room to improve indoor air quality. These devices are commonly marketed as beneficial to allergy sufferers and asthmatics, and to reduce or eliminate secondhand smoke.

Some versions are made with filters to trap particles as the air passes through them, while others can neutralize other particles in the air without filtering them first. Some manufacturers are addressing the noise problem with so-called intelligent filters, which employ an optical sensor to assess if the air is relatively clean and then switch to a lower fan configuration. Do-It-Yourself (DIY) air filters are indoor air filters that can be assembled from box fans and square HVAC (or oven) filters. Some filters are reusable and washable, but require meticulous maintenance, so they are not usually found in the most effective air purifiers. In Auto (similar to medium; the air does not contain a particle counter to adjust to air conditions, but instead asks you to enter the approximate size of your room, after which the machine chooses a fan speed that Molekule deems appropriate), the air performed worse, reducing particles by 0.3 microns at only 18.0% (ambient) and 26.4% (clean).

IQAir Perfect 16: This purifier uses HEPA filters and must be professionally installed in the ducts, in the return air duct. HEPA stands for high-efficiency particulate air and refers to the fact that HEPA filters allow air to pass through with little resistance while quickly capturing almost all of the particles that the air carries. The best way to improve indoor air quality is to eliminate pollutant sources and ventilate with fresh, clean outdoor air. Choosing the best whole-house air purifier system depends on your willingness and ability to perform the necessary maintenance, as well as the specific pollutants you want to remove from the air. Air purifiers can work to a certain extent, but filtration is much more effective at removing mold in the air. If your home doesn't have air conditioning or central heating, portable air cleaners are the most practical option.

One possible reason the Air performed worse than the background reduction is that its fan agitated the air and prevented particles from settling. In conclusion, home air purifiers can be an effective way of improving indoor air quality. They come in various sizes and types depending on your needs and budget. Whole-house systems are more expensive but provide better coverage than portable units. DIY filters can be an economical option but require regular maintenance for optimal performance.