Choosing the Best Air Purifiers Under $400- Which Air Purifier Should I Buy?

Air Purifier that cost $400

Some air purifiers seem to be more expensive than others, but you don't have to worry about being ripped off. Here are a few things to think about when looking for a new air purifier and how they compare with the average $400 cost."

An Air Purifier that costs $400 is like a TV that costs $400. This comparison can be an interesting one, but in the end it's all just a number.


Some air purifiers seem to be more expensive than others and some manufacturers have even been accused of selling their products for more than the market can bear.

What if this company was offering you something very special for your money and you thought it was worth every penny?

You'll find out soon enough--since many of them do, after all--but first let's think about what you are comparing air purifiers with these days.

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Air Purifier: Things To Look For

Finding a good air purifier that's within your budget is never difficult. But, how do you make sure you get the best suited product for you? Here are some things to consider while shopping for an air purifier.

Ease of Use:

Is the air purifier easy to use? How long does it take you to set everything up and to get a result? How much time do you spend cleaning the filter and learning how to care for it?

What kind of features will you be getting with your product? Are there any extras included (like a remote control) or is everything self-contained? Is it an energy saver or does it use a lot of electricity for its operation? What sensors are included (like carbon fiber bellows)? Is there a way to customize your air purifier's performance? Aspects like these can vary wildly.

Power settings:

Power levels are very important. Some air purifiers have several built-in settings, while others have just one setting. The best air purifiers give you a variety of power levels because everyone's needs vary depending on the time of year, weather conditions, and other factors.

A good air purifier can be run at its highest setting to treat illnesses or allergies without completely destroying the quality of your space. For example, an HEPA filter needs to be run at higher power settings in order to work properly; but for day-to-day use, they should be set at a lower level that doesn't allow particles and allergens through while still filtering out other particles that could affect the quality of the air in your home.

Air Cleaner (Fan):

Most air purifiers use an air cleaner, or fan, to draw in and expel the air. Air cleaners are usually made from pleated cotton or felt and have magnets embedded in them to help make a cleaner air path. The magnets can either be permanent (found on older models) or removable (most modern models).

Some purifiers also have a tower that pulls the air across the filtering media before the cleaning process takes place.


An important aspect of an air purifier is its filtration capability; however, there are some types of filter media that are better than others for heavy particulate removal. Most air purifiers have filters that are HEPA (High Efficiency Particulate Air) filters.

Some also have both HEPA and carbon filters. You should consider the size of your home and how much air is flowing through it to determine which type of filter your purifier will need.

Remote Control:

While most air purifiers have a remote control, it's not necessary for this feature to be incorporated on every model. Some are better suited for those who want more control over their purifiers than others. If you have a specific allergy or environmental condition that affects you, sometimes trying through trial and error helps you find the right fit for you.


Air purifiers can help you breathe easier, but the mechanism used to do so can sometimes be annoying. Some air purifiers have fans that are near their filters and therefore draw in and cover the filter with most of the air flow.

Others use a push mechanism to move air from your home into its filter. It's important to consider whether you prefer a fan on your purge/clean cycle or not. Also, consider whether or not you'll like the noise level of your air purifier.

Types of Air Purifier For $400

The filter on an Air Purifier is the most important aspect of the machine because it's what catches your dust, allergens, and pollutants. It is also the most expensive component to replace. The manufacture of an air purifier will add their own signature filtration material, and some companies boast that theirs is better than the rest.

To know if that's true, you'll have to run several tests on a new air purifier and a competitor's version. You can't always trust what a manufacturer has to say about its product because they might be trying to sell you something more expensive than you actually need.

True HEPA filters

True HEPA filters are just that: High Efficiency Particulate Air filters. These filters are in most air purifiers, and they remove 99% of all particles that are .3 microns or larger. A particle this size can be compared to a grain of sand. It's the smallest particle you might inhale and it can leave your body with more difficulty than anything else. If an air purifier doesn't have a true HEPA filter, it won't be nearly as effective.

Carbon filtration

A carbon filter is another type of material that helps clean the air as it goes through your air purifier. A filter like this is more commonly found in a good air purifier that claims to remove formaldehyde.

A carbon filter is usually made of activated carbon, which filters out the pollutants that can often be found in your home and workplace. This is a very cheap item to replace, but not all carbon filters are created equal. Some types are better than others at removing certain types of pollutants like formaldehyde from the air.

It's also important to note that good HEPA filters will scrub out any airborne bacteria and viruses as well, which may help you avoid getting sick when using an air purifier.


An ionizer is a type of air purification system that adds ions to the air. These ions help remove odors caused by VOCs (Volatile Organic Compounds). VOCs are chemicals found in some cleaning agents, paints and even some deodorants. Some of these items can cause headaches and breathing difficulties for some people. If you suffer from allergies or sensitive respiratory problems, ionizers may be just the item you need to get a clean, odorless air supply.

Ultraviolet (UV) light :

UV light is a type of air purifier which uses a low energy ultraviolet source to kill bacteria and germs on in the air. These types of machines are typically used for rooms where there is an issue with odor related to bacteria. They are not as effective as HEPA filters when it comes to filtering out Volatile Organic Compounds and other pollutants, but they are very good at killing bacteria, mold spores, and yeast. They are also less expensive than HEPA filters.

Considerable effort has gone into developing the finest filters for the specific needs of various applications in the HVAC industry. As such filtering technology has advanced to levels approaching that of what might be considered 'magical.

Electrostatic air purifiers :

An electrostatic air purifier uses an electrical charge to attract dust and other particulates. The particles are attracted to the unit and then the filter catches them as they’re pulled through. These types of machines are often used for filtering large areas, like a factory, or for contractors working on a construction site.

Electrostatic air purifiers are inexpensive and don't require regular replacement of filters, but they aren't good at getting the smallest particulates out of the air. They also have issues with collecting dust after any type of drywall work has been done in your home or office because they can pull particles through their filters and build up inside the machine.

Ozone generators:

Ozone generators are used in air purifiers because they can remove particles and odor. They are usually used on a smaller scale, for a home or business office. They're commonly used in larger HVAC systems as well. Ozone generators often come with warnings that they should be ventilated out of the room quickly because your lungs can't process the ozone that well, which is why it's not common to find these machines available for home use.

Most air purifiers for sale have HEPA filters as their main feature. A HEPA filter removes 99% of all particles that are .3 microns or larger from the air around you and into your new machine.

Type of Pathogen In An Air Purifier

If you spend $400 on an air purifier, you want it to be able to get the smallest particles in your home, which means that it should be specifically effective on eliminating viruses and bacteria. These are thing you can get rid of with an Air Purifier


Allergens are one of the most commonly found pollutants in an indoor environment. Allergens can be found in various substances like dust and pollen. The air you breathe is full of allergens, which may trigger or exacerbate allergies and asthma. These can be a problematic health issue if not dealt with effectively. Allergens can also be on your skin, which may cause problems like pimples.


Bacteria is another common problem in the environment. Bacteria can cause illnesses such as colds, respiratory issues, and even food poisoning. Bacteria is found in animals, plants, dirt, and even the air we breathe. Bacteria can be found in your home or office and it’s pretty noticeable sometimes when you turn on the lights in our rooms or offices because of the smell it emits or some other issue you may experience with the air quality.


This is another particle that cleans out of your air filtration system. Dust and particulates can cause major issues for you if they aren’t dealt with properly. Particulates from dust can get into your lungs and cause a lot of problems for you. They may also lead to things like asthma and allergies. Particulates can be found in all sorts of places, especially outdoors where the air is much more pure than it is inside your home or office, so take care when going outside.


Pollen is another particle that can make you sick if you aren’t careful. Pollen is found all over the place also, so cleaning it out of your environment is essential to keep yourself healthy. This may lead to things like hay fever and other seasonal symptoms.


VOCs are a type of pollutant that is found in many cleaning agents, oils, paints, aerosols and other surface fluids. VOCs are very damaging to health in many ways. They can contribute to asthma attacks and other respiratory issues as well as irritation of the eyes and skin when they collect on windows or walls or in your carpet.

Dust mites.

Dust mites may be one of the most common pollutants found in your home. Dust mites are tiny insects that live in most dry environments, including houses. Their feces and other waste build up on furniture where they live and multiply rapidly. This can lead to allergic reactions, bronchitis, asthma and other respiratory issues.


Mold is found in most environments and is typically found on damp surfaces that produce large amounts of spores. Mold can grow anywhere, but it produces a variety of toxins which are highly toxic to humans. It’s important to take care of mold in your home or office environment because it can cause many health issues.

Fungal spores.

Fungal spores are found in any environment with a large amount of moisture. You’ll find fungal spores in places like bathrooms, basements and kitchens. Fungal spores can produce allergens which lead to all kinds of health problems. Fungal spores are also known to cause more serious respiratory issues and other diseases that can be very dangerous.


Smoke is a very hot topic in the world of indoor air quality because it is hard to control, especially when you’re located outside. Smoky environments are associated with much higher rates of asthma and respiratory issues. Smoke can also be a problem when it comes to cleaning and ventilation systems. Air filters may be damaged by smoke, increasing the amount of particulates that make their way into your home.

Cigarette smoke.

Cigarette smoke can be very dangerous for anyone in a room that is smoking. Cigarettes produce a variety of toxic substances which are harmful to our health. They can lead to things like respiratory issues and various other illnesses as well as deal with indoor air quality problems all on their own.


Odors are very common in the home and office environment. Odors are usually associated with cooking odors or other odors that may make their way indoors, which can pose risks to your health. It’s important to have an odor eliminator in your home or office to get rid of these odors and keep your indoor environment safe.

Better Overall Health With An Air Purifier For $400

With an air purifier for $400 you can eliminate most of the harmful particles that are found in the air. These particles can come from all areas of your environment, which adds up to a very toxic environment that is very unhealthy for you. This kind of pollution is often brought on by things like smoking and cooking odors as well as rooms with less ventilation or poor airflow.

Another thing to consider with your new air purifier is that you’re investing in your health for many years to come. Most air purifiers are able to last a long time, so you’ll have great coverage even when you move or remodel your home.


There are many different air purifiers that are on the market right now. It’s important to have an air unit that is capable of removing the most common issues in your home or office. This can give you a safer work environment and healthier home if you make good investments in your indoor environment like an air purifier for $400.

We hope this article helped you decide which one was the right fit for you, and hopefully it’s going to make you feel better all around when it comes to your indoor environment.

  • 6-FAN AIRFLOW: Six high-speed micro-fans work together to evenly distribute airflow across the filter.
  • ULTRA-FAST MEETS ULTRA-QUIET: With multiple smaller fans, you get a remarkably quiet clean, and an incredibly fast clean air delivery rate.
  • TRACKS & ADJUSTS AUTOMATICALLY: Clean Sense IQ tracks air quality and auto-adjusts power to constantly maintain clean air in your home. The easy-to-use control panel displays data in real time.
  • ANTI-ALLERGEN HEPA MULTI-FILTER: Shark’s Anti-Allergen Multi-Filter captures 99.98% of dust, dander, allergens, smoke, and household odors. Based on HEPA filtration standards of 99.98% filtration, down to 0.3 microns.
  • HEIGHTENED ODOR PROTECTION: An advanced odor guard on the filter protects against household odors from cooking, cleaning products, and more.
  • ALL-DAY CLEAN AIR CONFIDENCE: An intuitive display panel gives you real-time air quality reports, to give you clarity & confidence in the air you breathe.
  • XL CLEANING AREA: 6 fans working together generate the power to purify up to 1,200 square feet. Based on one air change per hour.
  • REMOTE CONTROL INCLUDED: An easy-to-use remote gives you complete control from anywhere in a room.
  • WHAT'S INCLUDED: Shark Air Purifier 6 & Remote Control.
  • LIVING ROOM & LARGE ROOM SMART FILTER: Our 5-in-1 filter system targets pollen, dust, pet dander, VOC’s, smoke, and odors - the H11 HEPA filter captures 99.9% of particles down to 0.3 microns. Our lightweight device is portable, allowing you to improve air quality wherever you need it. Our smart air quality sensor & touch-screen display makes the purifier easy to use & adjust your settings, & also shows air quality information
  • EXCEPTIONALLY SILENT: Designed for quiet operation, making it perfect for use in bedrooms and living rooms. The purifier's efficiency in capturing dust and particles - see just how much our air purifiers for home can assist and support the body’s natural response
  • EASY TO USE & INSTALLATION: Built to easily identify, access, and change your filters - our purifier comes with multiple fan speed options, enabling you to set the pace of air filtration to suit your needs. Included is a remote to easily adjust the speed to your preference and turn the light on & off when needed - with the auto mode as well to facilitate real-time adjustments based on your room's air quality, & ITS QUIET!
  • REMOVE ODORS, SMOKE, & VOC'S: Both an air cleaner & odor eliminator, our air purifier features a unique honeycomb activated-carbon filter that absorbs odors, smoke, and VOC’s. With a state-of-the-art fan and motor, enjoy clean air delivered quietly and efficiently in your home, bedroom, office, kitchen, basement, dorm, apartment, or living room.
  • FIND RELIEF: Our purifiers come with a 2-year warranty, award-winning customer support 7 days a week, and the peace of mind with a brand you can trust. You can also find our replacement filters to ensure you have fresh air all year around!
  • Every Purchase Saves Pets. Bissell proudly supports Bissell Pet Foundation and its mission to help save homeless pets
  • 3 Stage Filtration. Includes a Pre-Filter, an Activated Carbon Filter and a HEPA Filter which captures 99.97% of 0.3 micron particles and smaller including pollen, dust, smoke, hair, and pet dander
  • Honeycomb Structure Filter. Activated Carbon Filter has a unique honeycomb design filled with carbon pellets to better effectively gasses and VOCs as well as odors from cooking, pets, smoke, and more
  • Automated CirQulate System. Utilizes a PM 2.5 sensor to monitor, report and respond to changes in your indoor air quality by adjusting fan speed as necessary
  • Filters Included. Comes with one HEPA Filter + Pre-Filter and one Carbon Filter
  • Accommodating size. Tested to the AHAM standard to have a Smoke CADR of 279 for rooms up to 432 sq. ft., making it great for bedrooms, living areas, basements, and dining rooms.
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Nick Le Page

 An air purifier is a device designed to remove dust, pollen, smoke, soot, mold spores, smog, and other airborne pollutants from the air.

If you want to keep your home clean and free of contaminants—and save money on heating and air conditioning bills—quality air purifiers are a powerful first step.

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