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Room Purifier FAQ

History of Room Purifiers

Room purifiers rose in usage in the 1970s. In an effort to conserve energy, homes were tightly sealed; unfortunately, this increased the number of allergens and pollutants in household air. Room purifiers helped cleanse the air of common allergens, making them a more standard home appliance.

Types of Pollutants

Some of the most common pollutants in the air include dust mites, mold, radon, carbon monoxide and volatile organic compounds, or VOCs. A VOC is a toxic organic chemical that is usually released into the air through paints and adhesives. Most modern wall paints contain low or no VOCs, but not all homes or structures have been updated with modern paints. Constant exposure to these pollutants can result in irritation to the throat, eyes or nose. In extreme cases, air pollution is linked to cancer. Most room purifiers eliminate pollutants from the air, which reduces allergic reactions and benefits overall health.

HEPA Filters

The most effective filter is a High-Efficiency Particulate Air filter. HEPA filters originally prevented radioactive particles from spreading. The HEPA filter also eliminates odors. The filter remove 95 to 99 percent of the dust and particulates in the air, depending on the type you buy. While often used in commerce, HEPA filters are also available as part of a standard air purifier for the home.

Coverage and Cost

Review the size of the room when choosing an air purifier. Some room purifiers only cover rooms that are 100 square feet, while others can cover much larger areas of up to 900 square feet. Depending on the amount of space a room purifier covers and the types of pollutants the machine is able to eliminate, the cost for a room purifier can range from $100 to well over $1,000.


You can also work to naturally purify the air in your home. Clean fabrics and vacuum regularly, smoke outside the home and properly ventilate the kitchen, bathroom and basement. Pet dander and hair can also cause allergies. As a result, limit your pets' access to furniture.

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