There are a lot of air purifiers on the market that acts just like a dust filter. They often are not effective. These models have some controls, a filter, and a fan. They can only filter basic elements and reduce some of your home’s allergens. Dangerous pollutants like gas, bacteria, or viruses are too much for these basic models’ capacity.
There are units that have higher prices in this class with special technologies that range from electrostatic to HEPA filters. Just because a unit can filter out some particles does not necessarily mean it will purify your air. They often have a thin mesh of carbon fibers instead of the solid carbon filters found in quality air purifiers.
Filters that are electrostatic only remove larger particles in the air. They are not as efficient on their own. HEPA filters come in a variety of ratings and abilities. Many HEPA filters in cheaper models are low grade and cannot purify the air properly. You must consider the filter’s rating when buying an air purifier.
Buy What You Need
Decide what you expect from your air purifier. You may want less dust in the house that makes you sneeze. You may want to reduce odors or relieve asthma problems. There may be problems in your house with mold, fungus, and other airborne particles that can cause illnesses. You may want to eliminate toxic gasses and compounds that can lead to cancer.
If these are some of your goals for an air purifier, you will need one with a complex system. Most air purifiers remove pollen and dust from the air; however, you may want one that does more. There are some air purifiers that can do all of this with convection heat or ultraviolet light. They may reduce dangerous things such as VOCs, toxic gas, and hydrocarbons. Remember that the most expensive unit is not always the best one.