Air Purifier Placement Guide – Where Should You Put Your Air Purifier?

HVAC Training Shop is reader-supported. As an Amazon Associate, I earn from qualifying purchases.

Do you use an air purifier in your home? Using an air purifier will have a positive effect on your home’s air quality. From bad smells to airborne particles, air purifiers will remove contaminants from your home’s air and help provide a comfortable living environment.

Figuring out where to place your air purifier in your home is the single biggest factor in how well it will perform. There are a few different things that you need to consider when selecting a location for your air purifier. No matter what, where you place your air purifier will have a huge impact on its efficiency. 

The best air purifier location for your home

No matter what type of air purifier you have, there are some general guidelines that you need to follow when selecting the best place for it:

Give your air purifier adequate ventilation

Giving your air purifier adequate ventilation is the most important factor in air purifier placement. Without proper ventilation, your air purifier simply won’t work.

Given that ventilation is so important, you would think that placing your purifier right in the middle of your room would be best. However, this is not the case.

Placing your purifier towards one side of the room is ideal due to the way particles diffuse in an area. Since the air purifier is cleaning the air, the air around the purifier will be clean. The vacuum created by the fan will suck in dirty air from the other side of the room.

Above all, you need to make sure that the air intake is free of obstructions. If the air intake is obstructed, the air purifier will work less efficiently.

The air vent also needs to be directed properly. Be sure that the discharge air stream is directed toward the middle of the room to provide maximum airflow.

Putting your purifier in the corner of a room is not ideal since there isn’t adequate clearance for airflow. The purifier needs adequate ventilation to purify air. 

Put your air purifier near air pollutants

When selecting a placement for your air purifier, intercepting pollutants at their point of entry is extremely effective. 

Outside air is the source of many particles that will reduce the air quality in your home. Place your air purifier near windows or doors. This is effective at filtering out pollutants before they get inside your home. 

It is also common to place an air purifier near sources of odors such as the kitchen. Cooking food, chopping onions, and the kitchen trash can are all sources of odors that can get into the rest of your home.

Keep your air purifier away from heat sources

Like any other machine, air purifiers get hot when operating. To prevent your air purifier from overheating, keep your air purifier away from sources of heat. 

Sunlight near windows or heat from furnace vents can damage an air purifier. Never leave your air purifier in direct sunlight for an extended period of time. 

Keep your air purifier away from moisture

While air purifiers are good at removing particles from the air, they don’t remove moisture from the air. In fact, excessive amounts of moisture can damage your air purifier.

If your air purifier’s filter absorbs too much moisture, it may lower the lifespan of the filter. 

Plus, it’s better to just keep your air purifier away from sources of moisture to prevent condensation damage.

Keep your air purifier away from electronics

Keeping your air purifier out of the vicinity of electronics is also sometimes necessary. Common household electronics are sometimes affected by air purifiers.

Air purifiers can sometimes cause interference on TVs and radios. They also can sometimes cause losses of WiFi signals if they are placed too close to your router.

Make sure your air purifier is at least 6 feet away from any other electronics. However, you may be able to get away with placing your air purifier closer to some electronics. 

Whether your air purifier affects your electronics depends on a multitude of factors. Sometimes it takes a bit of trial and error.

If you have an ionic air purifier, this is especially important because of the way that ionic air purifiers work. 

Placing an ionic air purifier near electronics is a bad move since ionic air purifiers create charged particles that bind to dirty air particles. As the charged particles attach to dirty air particles, the dirt particles fall out of the air and land on a nearby surface.

If an ionic air purifier is placed near electronics, dirt particles will accumulate on your electronics. 

Air purifier placement in living room

Using your air purifier in the living room is a good choice, especially if you spend a lot of time in that room. One of the best places to put an air purifier is near any source of air infiltration, such as a window or a door. 

Coway AP-1512HH HEPA Air Purifier

This air purifier comes equipped with a true HEPA filter. It is compact, extremely efficient, and has 3 fan speeds.

HVAC Training Shop is reader-supported. We earn from qualifying purchases.

As people enter and exit your home, dirty air from the outside has a chance to get inside your home. If you place your air purifier near the front door, it will have a chance to clean the dirty outside air before the air gets a chance to go deeper in your home.

When selecting an air purifier for your living room, be sure that it is large enough to clean all the air in your living room. Since the living room is often the largest room in a house, it is important that the air purifier’s cleaning capacity is large enough for that room.

Air purifier placement in bedroom

Placing your air purifier is your bedroom is a smart move because it is a room that you spend a lot of time in. As you sleep at night, dirty air particles can irritate your respiratory system and disrupt your rest.

One study found that air pollution can cause a reduction in sleep duration. There are a few different methods by which air pollution can affect sleep. So it is important to keep the air clean inside your bedroom.

If you place an air purifier in your bedroom, be sure that it is given sufficient clearance from walls and other objects. This may be tricky to do in a bedroom. The idea is to give your air purifier adequate space for ventilation. 

Secondly, keep your air purifier away from any heaters or vents. Ensure that there are no sources of heat near the air purifier to prevent overheating.

Levoit Core 300

This air purifier is very compact and budget-friendly. It also has a display-shutoff feature so your sleep won’t be disturbed by a bright screen.

HVAC Training Shop is reader-supported. We earn from qualifying purchases.

Air purifier placement in kitchen

The kitchen is a room that breeds all sorts of smells and spores. Placing your air purifier in the kitchen is a good way to intercept odors before they go to the rest of your home.

Mold, food particles, and byproducts of cooking such are all sources of air contaminants. Smoke is one of the worst offenders, and it can impact your kitchen’s air quality when cooking.

If your place your air purifier in your kitchen, a good place to put it is somewhere near the trash can. Be sure that the air purifier has clearance from other objects and sources of heat.

If you cook frequently, then you will need to change your air purifier’s filter more often. Oil, smoke, and food particles will accumulate in your air purifier’s filter quickly.

If you intend to use your air purifier to remove odors from your kitchen, be sure to use a carbon pre-filter. Carbon pre-filters will neutralize odor particles so they don’t cause any smells in your kitchen’s air.

How often should you change the filter in your air purifier?

Generally, you should change the HEPA filter in your air purifier every 6 months. Depending on how often you use your air purifier and how dirty the air in your home is, you may need to change the filter more or less often.

Changing the filter in your air purifier is necessary to maintain its the air purifiers effectiveness. If you don’t change the filter, it will reduce the airflow through the air purifier. Lower airflow means that it will take longer for the air purifier to remove particles from your room’s air.

Most air purifiers have HEPA filters that need to be replaced. HEPA filters are almost always disposable, so reusing them is not an option. This because HEPA filters have a microfine mesh weaving that is easily damaged.

Air purifier pre-filters

Using an air purifier pre-filter will prevent your main HEPA filter from getting clogged up with debris. A pre-filter will capture the majority of larger particles before they reach your HEPA filter. 

Using a pre-filter greatly extends the HEPA filter’s lifetime. This is important because HEPA filters tend to be pricey to replace, so extending their lifetime saves money in the long run. 

Most air purifiers come with their own built-in pre-filters. So you won’t need  an additional pre-filter. However, if your air purifier does not have a pre-filter, it is strongly recommended that you add one to the air intake.

Activated carbon pre-filters also provide odor control to your air purifier. Carbon pre-filters are able to eliminate odors from your room’s air. Many odor particles are able to go right through a HEPA filter, so having a carbon pre-filter helps to eliminate odors.