Frequently Asked Questions About Air Cleanser


  • What Exactly Are Home Air Cleaners?
  • How Come You Need An Air Cleanser?
  • Cost Considerations
  • Selecting the most appropriate Size Air Purifier
  • What Kind of Features Do You Need?
  • Think About Noise Level?
  • Maintenance

In accordance with research conducted by the U.S. Environmental Protection Agency’s (EPA) Office of Air and Radiation, our air quality indoors could be a surprising 2 to 5 times more polluted than the air outside. This is the result of multiple factors including:

  1. Poor ventilation
  2. Indoor pollutant sources like combustion by-products, pesticide sprays, air fresheners, cleaning products, and building material emissions
  3. Allergens and other impurities that migrate indoors and into your home’s air

The EPA recommends using an air purifier to generate healthier air by filtering out allergens, odors, and other impurities from your space. But with the wide range of air purifiers available on the market, figuring out which model is better for your needs may turn out to be a challenge. The following guide shall help you select the right air cleanser for your requirements.

What Exactly Are Air Purifiers?

  • Air purifiers work with an amount of ways.
  • Electronic home air cleaners with filters would be the most frequent. During operation, these models pull air inside the machine and pass it through a series of fabric filters and/or absorbent carbon filters using the power of a circulating fan. As air moves through each filter, airborne particles and pollutants are filtered out and locked away within the filter. Clean air will be circulated back to your space. This technique continues for as long as you keep the air purifier switched on. Filter air purifiers are popular choices if you are in search of HEPA-level filtration (High Efficiency Particulate Air filtration) in your indoor environment—a must when you have allergies. Read more about HEPA filters in our All About Air Purifier Filters article.
  • Ultraviolet or UV electronic home air cleaners use ultraviolet (UV) germicidal light to kill allergens and germs on contact as air passes through the machine. With one of these models, UV light is generally used alongside another kind of filtration like filters for probably the most effectiveness.
  • UV home air cleaners are thought completely safe because ultraviolet light is just used inside the unit and won’t escape to harm your skin or eyes. However, recent studies have shown why these units may possibly not be as potent as some manufacturers claim. UV light needs a particular timeframe – a few momemts at least – to kill allergens and germs. Because air so rapidly passes through a UV air cleanser, the light shines just for a matter of seconds with every pass. This is usually not adequate to neutralize all allergens and germs. With these odds, we think you need to only rely on UV light as a supplemental as a type of air filtration. In other words, look for an air purifier that uses filters, for instance, as its primary filtration system and UV light filtration as a bonus feature.
  • Air sterilizers are relatively new forms of air cleaners that use heat to disinfect air as it passes through each unit. This technique has been shown to kill at the very least 99% of airborne germs, bacteria, and allergens. Air is gone back to room temperature prior to it being released back in your space.

How Come You Want An Air Purifier?

As you look for an air cleaner, it’s a good idea to take into account the problem you’re attempting to solve. Think about your symptoms. Are you currently dealing with allergies? Asthma flare-ups? Perchance you’re irritated by certain allergens or fumes in the air. Let your need guide your choice. Here are a few example conditions and airborne pollutants you may target.
Seasonal Allergies

  • seasonal allergiesAllergy home air cleaners are superb solutions for helping relieve spring, fall, or year-round allergies, including allergies to pollen and dust. Models that feature HEPA filter technology trap nearly 100% of allergens smaller compared to the human eye is able to see (the ones that aggravate your symptoms the most). With one of these irritants from the air, your incidences of itchy eyes, sneezing, coughing, and runny nose may be reduced as well as your indoor air will likely to be healthier day after day. Learn more about how air purifiers can be used to treat your allergic reactions in our article Air Purifiers and Allergies


  • Home air cleaners will also help reduce asthma flare-ups. HEPA home air cleaners are excellent for removing asthma triggers, which can be the same microscopic allergens that trigger your allergy symptoms. Alongside this, you may consider using an air purifier with odor-absorbent filtration to get rid of triggers like perfumes, household chemical odors, and smoke. These kinds of indoor pollutants can exacerbate asthma symptoms and result in an asthma attack. Read our articles Dealing with Asthma and Children and Asthma for more information on using an air purifier as part of your asthma treatment strategy.

Pet Allergies

  • pet allergiesIf you’ve got a pet or multiple pets and you or someone at home is allergic to them, an air cleaner might help. Most people are not allergic to cat and dog fur. They’re allergic to the dander of dogs and cats. Pet dander particles would be the skin cells that cats and dogs shed. Dander is tiny and may remain in the air for a very long time. These particles also have a tendency to go where your pet goes and hang in there after your pet has left the region. Home air cleaners clean these particles from the air, trapping the dander when you look at the filters or on electrostatic plates. These models also help to lessen the number of pet fur floating during your air, which keeps your home cleaner. Air cleaner odor filters add another level of protection too. Activated carbon odor filters absorb pet odors and promote fresh-smelling, healthy air through your home.

Multiple Chemical Sensitivities

  • Multiple chemical sensitivity (MCS) is a condition in which an individual is sensitive to a single chemical fume or multiple chemical fumes they might encounter within their environment. These might include odors from perfumes/colognes, air fresheners, or certain cleaning products. Triggers might additionally be fumes off-gassed from materials used in newly constructed homes, new carpeting or hard flooring, if not new furniture. Not in the home, you could encounter MCS triggers in salons, manufacturing areas, hospitals, or just about any other places where chemicals are employed regularly.
  • Home air cleaners that have extensive odor filtration system because of the key ingredient of activated carbon are best for helping treat an MCS condition. These models have either cloth or pelletized activated carbon filters that may measure within the pounds. They’re also designed with materials made to be free from off-gassing chemicals like certain glues, solvents, and plastic housing components, therefore the actual unit will not play a role in your symptoms. To learn more about MCS and just how air purifiers can really help, read our article Living with Multiple Chemical Sensitivities.

Dust Mites

  • Dust mites are tiny cream-colored organisms that live off organic material such as dead skin flakes or dust. Our homes would be the perfect environment for dust mites for which to live and breed. Because of their tiny size (about 0.03 to 35 microns in length) and quick crawling dust mitescapability, these little organisms move easily through the atmosphere in the slightest of air currents like those created if you’re changing your sheets, sweeping floors, opening curtains, or dusting furniture. Dust mites can cause respiratory problems and aggravate your allergic reactions. Home air cleaners help eliminate these little parasites by pulling them from the air and trapping them within the filter, and leaving behind clean healthy air. Find out about just how to fight dust mite allergens within our article Dust Mites and Allergies.


  • Smoke from your fireplace, stove, cigarettes, as well as a wildfire near your property may cause a wide range of quality of air issues in your indoor environment. Some individuals might not such as the smell as well as others can experience heightened allergy and asthma symptoms because of this. Smoke electronic home air cleaners remove smoke particles and absorb fumes using a mixture of HEPA and activated carbon filtration. You’re left with cleaner, fresher-smelling air that won’t trigger your symptoms.

Airborne Bacteria and Viruses

  • Certain forms of electronic home air cleaners also can combat illness-causing airborne bacteria and viruses, creating an even healthier environment during flu season or any moment of year. Ultraviolet home air cleaners use UV germicidal light to kill airborne pathogens on contact while filtering the air. Other electronic home air cleaners might use filters coated with a particular antibacterial coating to kill airborne germs as air passes through the filter. But still, air sterilizers use disinfecting heat to kill harmful germs and microbes. Research varies regarding the effectiveness of the models, so make sure to do your research. For more information on using an air purifier to battle germs and viruses, read our article Germicidal Air Purifiers May Boost Your Health.

Improving Your Indoor Quality Of Air generally speaking

  • Home air cleaners aren’t just ideal solutions when you have allergies or sensitivity to a certain pollutant. They may be easily one of the better ways you can enhance your indoor quality of air and create a healthier living space for you personally as well as your family. Use an air purifier in your bedroom or perhaps in the area you spend the most amount of time in. Daily air filtration helps remove potentially harmful impurities from your air, if the pollutants are introduced during cleaning, brought in through the outdoors, or simply stirred up with day-to-day life. There are additionally many types of electronic home air cleaners to select from, from tower units and tabletop electronic home air cleaners to models that hold on a wall and ones that sit on the floor. With a little shopping, you will without doubt find a model that is effective and in addition looks great in your space. Plus, these appliances are naturally efficient and consume minimal energy. The majority of today’s air cleaners also qualify beneath the Energy Star program.

Cost Considerations

  • The price of an air cleaner can vary from under $100 to more than $1,000. Although these systems generally operate in identical way—air is pulled within the filtration system, cleaned, and then released back out to your space—the logistics of how this might be accomplished, the inner design associated with the air cleanser, plus the quality and amount of clean air exiting the system varies with every model. As you shop, keep in mind that electronic home air cleaners with more advanced filtration systems, models which cover larger spaces, and ones that are filled with high-tech features have a tendency to cost significantly more than others.
  • As a rule of thumb, let your unique need for an air purifier guide your option in model and then determine your financial allowance. You will find many choices in multiple price ranges, from excellent budget air purifiers to best-in-class units.

Selecting the most appropriate Size Air Cleaner

Naturally, after considering your preferences and budget, it is additionally vital to think about the size of air cleaner that will be right for you.
Choosing Size Predicated On Square Footage and Air Changes Each Hour

  • The simplest way to get this done is always to calculate the square footage of this room or space you plan to utilize the air purifier in and compare by using a unit’s recommended coverage area. This process is easy. Just multiply the length of your space in feet because of the width of this space in feet. The effect is the coverage area you’ll seek out as your search for a model. On, you can find these details close to “Manufacturer-Suggested Room Size” on the Specifications tab of every air cleanser product page.
  • When you yourself have allergies or asthma, we recommend you are going a step beyond solely considering the sq ft coverage area and also think about the quantity of air changes per hour, or ACH, a unit will produce. ACH indicates what amount of times an air purifier processes the entire amount of air in a targeted space each hour. Easily put, just how many times will your air purifier clean all of the air in your bedroom in 60 minutes? The greater air changes each hour an air purifier produces, the cleaner your air. Allergy- and asthma-sufferers – and those planning to produce the cleanest indoor air possible – should try to find home air cleaners that can produce at the very least 4 air changes each hour.
  • If you should be searching for an air purifier on, we ensure it is easy to find an air purifier that fits your ACH preferences. Try to find the “Room Size centered on 4 ACH” specification listed on the Specifications tab of each and every air cleaner product page. This piece of information notes the most measurements of space (in square feet) you need to use the air purifier in to achieve 4 complete air changes per hour. This number could often be not as much as the manufacturer-suggested room size, nonetheless it provides you with a more accurate expectation for how well an air purifier will clean your air and help relieve your symptoms.

Whole Home Home Air Cleaners

  • Remember that electronic home air cleaners work best in the room they have been placed in. Portable air purifiers will likely not effectively clean the atmosphere in your complete house while sitting in one spot. If you are enthusiastic about an entire home solution, consider a whole house air cleaner. Whole house air cleaners work with your existing HVAC system to purify the air as you heat, cool, or ventilate all of the rooms at home. These models tend to be a larger investment in advance because they are much bigger systems and require professional installation by an HVAC professional. However, within the long-term, they have a tendency to function as the more economical and much more effective solution when it comes to improving quality of air throughout your home. Plus, with a complete house air cleaner, you may not need certainly to replace filters as often as you would with a portable air purifier and you should appreciate simple set-it-and-forget-it operation.

What sort of Features Do You Want?

air purifier buttons a lot of home air cleaners currently available have many different special features that enhance air-cleaning, make the air purifier much easier to use, and save energy. These features add convenience to your daily life and optimize operation to best suit your needs. As you shop, consider your significance of these features. Will they be useful? Are they ‘must-haves’ or ‘nice-to-haves’ as it pertains to your requirements? Listed here is a list of common added features home air cleaners frequently have.

  • Electronic/Digital Controls — permit you to more accurately select your operation settings.
  • Remote Control — Allows you to easily control operation from an appropriate distance.
  • Multiple Fan Speeds — Have the selection of multiple purification speeds to suit your indoor pollution level or sound preference.
  • Filter Replacement Indicator — Typically in the form of lights, these indicators alert you when it’s time to replace your filters.
  • Programmable Timer — Program operation to turn off and on at peak times through the day to help save energy.
  • Carrying Handle — Handles assist you to easily maneuver the atmosphere purifier if you intend to move it from space to space.
  • Casters — Along with handles, casters can really help allow it to be significantly more straightforward to move your air cleanser.
  • Germicidal Protection — Fight airborne bacteria and viruses in addition to allergens with an air purifier equipped to fight germs.
  • Ionizer — Help promote the capture of small and large particles as they are considered to help enhance your mood.
  • Air Quality Monitor — Some air purifiers can sense the level of pollution in your environment and automatically adjust purification settings into the level had a need to take away the pollutants.
  • Wi-Fi Capabilities — The innovations are continuing for electronic home air cleaners. Many new models can be set up through an app to possess total control of the room’s air from your own phone. Not only are you able to adjust your settings from anywhere, many apps permit you to receive real-time air quality information as well. BlueAir models are known for their updated technology and Wi-Fi capabilities.

Think About Noise Level?

It’s very rare you will come across a totally silent air cleanser. Most models use internal fans and will emit some level of noise, with respect to the purification speed you decide on. With this specific, it’s important to consider carefully your noise preference and take into consideration for which you want to make use of the air cleaner. Think about these questions to help guide the selection of model and adjust your expectations.

Will the atmosphere purifier be within my bedroom?

  • This is the most frequent area to make use of an air purifier therefore the most recommended. It is also the top area where people find high amounts of sound to end up being the most disturbing. If you’re someone who cannot tolerate any noise while falling asleep, using an air purifier with a programmable timer that can be set to turn the system on once you are deeply asleep is a great solution.
  • On the flip side, many individuals take pleasure in the “white noise” developed by an air cleanser because it can help create a calming effect in the room. In either case, it’s important to understand that most electronic home air cleaners will make noise. It’s just a matter of choosing the standard of sound you are more comfortable with.

What is the decibel rating of the air cleanser and how does this match up against other common sounds?

  • Many air purifier manufacturers list a decibel (dB) rating for each fan speed. It is possible to compare these ratings to your sounds made by other indoor appliances, including the noise emitted by a normal box fan or the “hum” sound that a refrigerator makes. This may give you a spot of reference when creating your decision. Utilize the comparison chart below to get a concept when it comes to level of sound an air purifier will make according to its decibel measurement.
  • Remember, noise levels will vary for every single individual. Even decibel results can often be misleading since numerous things can affect the sound level, like the position of this air cleaner, whether carpeting is present, the quantity of furniture in the room, the exact distance an individual is through the air cleaner while it is running, plus the chosen fan speed, among others. You will find, however, activities to do to lessen the effect for the noise an air purifier makes.


  • Regular maintenance is an essential part of maintaining your air cleanser working effectively for the long-term. Not surprisingly, there is certainly a lot of cost and effort required. Certainly, home air cleaners is useful for a period as a “set it up and forget it” appliance. However, to obtain the most from the investment you’ll need to replace the filters at the manufacturer’s recommended time intervals or as needed (if you should be using a filter air cleaner) or more frequently depending on the level of pollution in your indoor environment. Of course you decide to purchase an air sterilizer, you truly must be committed to performing recommended maintenance periodically to keep it running just like new.