HVAC Experts Say This Simple Air Purifier Placement Rule Will Dramatically Improve Performance For Good

The height at which you place your air purifier is the key to permanently improved efficiency and results

A bright and colorful living room with striped chairs, a patterned rug, blue corner sofa, rattan side table, black wood burner, and red lamps. The walls are white, with a large window to the left.
(Image credit: Future / JONATHAN BOND)

As I've found out, if you suffer from seasonal allergies, an air purifier is an absolute essential for the spring and summer months.

But, HVAC experts advise, the placement of your purifier is far more important than you may think, and the height at which you place it can make a drastic difference in its performance.

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Ian Palmer-Smith, appliance repair expert at Domestic & General, shares, 'As a general rule of thumb, you should place the air purifier five or six feet above the floor to ensure the correct airflow all around the purifier for optimum performance. Putting it on the floor would restrict the airflow and reduce performance.'

In my bedroom, where I use my best air purifier most often − the IKEA UPPÅTVIND Air Purifier − I place it on a chair at night, away from the walls. Now, I know that placing it on an even higher shelf will allow it to work even better.

Jordan Benjamin, owner and president of Done Rite Services, agrees. 'Dust, allergens, and other contaminants tend to circulate most around head level, so placing your air purifier around five to six feet above the floor allows it to pull air from an active air region and do its job in the most efficient way possible,' he advises. 'If you place an air purifier on the floor, you’re forcing the unit to deal with restricted air flow due to furniture, carpets, et cetera.'

As for where you should place an air purifier in a bedroom, in a kitchen, or anywhere else, Ian adds that there isn't a 'one size fits all' answer.

'But,' he emphasizes, 'they should be in an area with no obstructions and no sufficient flow of air, as well as always at least six inches away from any furniture or walls.'

And, Jordan adds, while many people use their air purifier around areas that tend to produce strong odors, like in or near a kitchen, bathroom, or cat litter box, it's important to remember that air purifiers are designed to do more than simply reduce odor.

'Their main purpose is to clean the air and improve indoor air quality, so don’t limit their placement to smelly areas,' he says. 'Whatever room you spend a lot of time in is a great candidate for an air purifier.'

What to Shop

Below, you can shop from a selection of our tried, tested, and recommended air purifiers for use all around the home.

All prices were correct at the time of publication.

Meet the Expert

Jordan Benjamin
Jordan Benjamin

Jordan is the owner and president of Done Rite Services, an Arizona company specializing in HVAC, plumbing, and electrical services. Arizona is dusty by nature, so addressing indoor air quality concerns for clients is something his team often does.


If you're wondering how to choose the right air purifier for your home, our expert guide includes everything you need to know.

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Ottilie Blackhall
Sleep Editor

Ottilie joined Homes & Gardens in 2024 as the News Writer on Solved, after finishing a Master's in Magazine Journalism at City, University of London. Now, as the Sleep Editor, she spends her days hunting deals and producing content on all things sleep – from mattresses and sheets to protectors and pillows, all of which she tests in her own home. She also has particular expertise in home fragrance, covering everything from candles to reed diffusers.

Previously, she has written for Livingetc and Motorsport Magazine, and also has a Master's degree in English Literature and History of Art from the University of Edinburgh, where she developed a love for inspiring interiors and architecture.