![]() ![]() Portable Air Cleaner Sizing for Particle Removalįurnace or HVAC filter - Select a filter rated at least MERV 13 or as high as your system will accommodate.įurnace and HVAC filters for homes are usually designed to filter particles. Increasing the amount of time an air cleaner runs will also increase air filtration. More air will pass through the filter at higher fan speeds, so typically filtration will be greater at higher fan speeds. An air cleaner will filter less air if it is set at a lower speed. Generally speaking, higher fan speeds and longer run times will increase the amount of air filtered. Activated carbon filters can be effective, provided that there is a large amount of material used in the filter.Ī portable air cleaner with a high CADR and an activated carbon filter can filter both particles and gases. The CADR rating system is for particles only. Note that there are no widely used performance rating systems for portable air cleaners or filters designed to remove gases. To filter gases, choose a portable air cleaner with an activated carbon filter or other filter designed to remove gases. Portable air cleaners often achieve a high CADR by using a high-efficiency particulate air (HEPA) filter. Most air cleaner packaging will tell you the largest size area or room it should be used in. The higher the CADR, the more particles the air cleaner can filter and the larger the area it can serve. To filter particles, choose a portable air cleaner that has a clean air delivery rate (CADR) that is large enough for the size of the room or area in which you will use it. If a filter is dirty and overloaded, it won’t work well. Consult the specific product packaging or labeling for more information. ![]() In addition, some air cleaners or filters are targeted to specific types of gases or VOCs. Other air cleaners only have one filter, usually for particles. So in order to filter both particles and gases, many air cleaners contain two filters, one for particles and another for gases (in some cases including gases that have odors). Note that most filters are designed to filter either particles or gases. No air cleaner or filter will eliminate all of the air pollutants in your home.When selecting a portable air cleaner, furnace filter, or HVAC filter, keep in mind: Tips For Selecting a Portable Air Cleaner, Furnace Filter, or HVAC Filter Portable air cleaners and HVAC filters can reduce indoor air pollution however, they cannot remove all pollutants from the air. Central furnace or HVAC filters are designed to filter air throughout a home. Portable air cleaners, also known as air purifiers or air sanitizers, are designed to filter the air in a single room or area. Using a portable air cleaner and/or upgrading the air filter in your furnace or central heating, ventilation, and air-conditioning (HVAC) system can help to improve indoor air quality. In addition, research shows that filtration can be an effective supplement to source control and ventilation. The most effective ways to improve your indoor air are to reduce or remove the sources of pollutants and to ventilate with clean outdoor air. Since most people spend about 90% of their time indoors, mostly in their homes, much of their exposures to airborne pollutants will happen in the home. Indoor air quality will vary from home to home and over the course of a day within a home. Common contaminants that can be found indoors include particulate matter (including PM 2.5 and PM 10 ), formaldehyde, mold, and pollen. These indoor air pollutants can be particles or gases, including volatile organic compounds (VOCs). Some of these pollutants come from outdoors, and others come from indoor sources and activities, such as cooking, cleaning, secondhand smoke, building materials, consumer products, and home furnishings. Indoor air contains pollutants that can affect human health. Portable Air Cleaners and Furnace or HVAC Filters in the Home Air Cleaners, HVAC Filters, and Coronavirus (COVID-19).Q&A: Heating, Ventilation, and Air-Conditioning (HVAC) System Filters and Furnace Filters.Tips For Selecting a Portable Air Cleaner, Furnace Filter, or HVAC Filter.Portable Air Cleaners and Furnace or HVAC Filters in the Home.This guidance is also available as a PDF download. It includes tips for selecting a portable air cleaner, furnace filter, or HVAC filter. This short consumer guide covers portable air cleaners and furnace or HVAC filters used in a home. More downloads available at: Air Cleaners and Air Filters in the Home 2nd Edition: Portable Air Cleaners, Furnace and HVAC Filters Download the PDF Version of the Technical Guide to Residential Air Cleaners ![]()
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