Recommended Placement for an Air Purifier in a Bedroom

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Air purifiers in the bedroom help you get a good night's sleep.

Air purifiers clean the air you breathe by filtering out particles, pathogens and toxins floating undetected through the air. While it's a good idea for everyone to have an air purifier, they are especially helpful for babies and small children, people with asthma and allergies, individuals with a compromised immune system and the elderly. Air purifiers are most effective in the bedroom because you breathe deepest in your sleep. Some models need to be in the center of the room; others can function on or near the wall. Read the directions carefully to determine the best place for your air purifier.


Air purifiers are used to filter and clean polluted air inside homes. According to Achoo Allergy and Air Products, many people spend around 90 percent of their time indoors, and the air inside can be 5 to 10 percent dirtier than the air outside. Air purifiers engage in "air exchange"; a fan built into the purifier sucks in air from the room, sends it through a filtering process inside the machine and then releases clean air back into the room. The machines are made to purify a one-room environment. If you want to purify the air in multiple bedrooms throughout your home, you'll need more than one air purifier.


Air purifiers protect individuals against bedroom allergens, including dust mites, mildew and mold spores, pet dander, airborne bacteria, household odors and gases and volatile organic compounds found in common household products such as disinfectants, cleaning supplies, paints, adhesives and varnishes. Because many people spend most of their time at home in the bedroom, having an air purifier in the space protects them against asthma, allergies and contamination from pollutants in the air.


According to Achoo Allergy, bedroom air purifiers should be placed about 6 to 10 feet from the head of your bed, with the directional registers pointed toward you. Any closer and you might feel a draft; any further away and you might not receive the full benefit of breathing filtered air. The unit should be placed squarely on the floor. Some are required to be placed in the middle of the room for maximum filtration; if this is a problem, look for machines that have 360-degree filtration and can be placed 6 inches to a foot away from the wall. Some machines can be placed right up against the wall with no problem.


When searching for an air purifier for your bedroom, choose one with a "sealed system." Sealed systems keep clean air and dirty air separate. Keep your air purifier on 24 hours a day; the highest setting is recommended, but it can be quite loud. Turn the machine all the way up when you're not in the room, and turn it down to a lower setting when you're in the room. Before purchasing the unit, check the warranty, the type of filters it uses and how often the filters need to be changed. It is recommended that you buy replacement filters at the same time that you purchase your machine so there is no break in air filtration when your filters expire. Write down the expiration date of your filter in a prominent location so you won't forget to change it when the time comes.


Oubria Tronshaw

Oubria Tronshaw specializes in topics related to parenting and business. She received a Bachelor of Arts in creative writing from the Santa Fe University of Art and Design, and a Master of Fine Arts in creative writing from Chicago State University. She currently teaches English at Harper Community College in the Chicago area.