How To Buy Good Air Purifier

An excellent air purifier buying guide will help you identify which air cleanser is right for you. Some air purifiers are excellent to begin with yet not another. Some technologies work plus some usually do not. Our air cleaner buying guide can help you identify what things to watch out for and assist you in finding the best air cleaner for your needs.

FAQ about Air Cleaner:

  • Air purifier buying guide – what to consider
  • Air purifier buying guide – must haves
  • Air purifier buying guide – nice to own
  • Air cleanser buying guide – maybe
  • Air cleanser buying guide – usually do not touch
  • Air purifier buying guide – other factors to consider

Air cleanser buying guide – things to consider

The very first thing to consider before buying an air cleanser is really what you need to use the air cleaner for. Whether you need to lessen your allergy or asthma symptoms, remove tobacco smoke or dust through the air or simply just wish to create a more healthful indoor environment – a beneficial air cleanser is oftentimes the best/only proper solution for airborne contamination. Because of their capacity to take the broadest range of pollution from the air, air purifiers are an ever increasingly popular household item. Air purifier buying guide – Common concerns and symptoms:

  1. Asthma
  2. Dust Mite
  3. Removing Dust
  4. General Air Quality
  5. Traffic Pollution
  6. Hay-fever
  7. Mould
  8. Pet Dander
  9. Pollen
  10. MCS (Multiple Chemical Sensitivity)
  11. Tobacco Smoke

Air cleanser buying guide – must haves

HEPA Air Purifiers

  • Certain things are thought ‘must haves’ for a great air cleanser. A highly effective air cleaner has, as an example, the appropriate filters to get rid of or significantly lessen the types of pollution in your home that you will be worried about. The air cleaner may also have to be in a position to complete a suitable quantity of air changes inside the room you are planning to make use of it in. Unfortunately, an enormous majority of air purifier manufacturers are wilfully misleading in regards to the performance of the air purifiers. Things such as filtration efficiency, number of air flow, noise level and what kinds of pollution the air cleaner can cope with in many cases are obfuscated by many manufacturers – either because they do not know much about air purification or as they do not want you to know the truth concerning the performance of the product. What filtration efficiency, airflow and sound pressure you might need, or suits you, relies on your unique concern. We’re going to discuss each performance indicator when you look at the section below in more detail.

Air purifier buying guide – nice to have

Some popular features of an air cleanser are not absolutely necessary, but could be considered ‘nice to haves’. A filter life indicator is, for example, a really useful feature to own. The filter life indicator will notify you as soon as the filters have to be changed. Replacing the filters at the required time will make sure the air cleaner is performing because it should and protects the fan from being damaged.


  • Unfortunately, there’s no decent air cleaner this is certainly small adequate to fit in the palm of your hand and can be carried around easily. Why not? Well, there are limits to your physics of what exactly is possible. You would not expect a washing machine the size of a toaster in order to complete a suitable load of laundry. Similarly, you must not expect an air purifier how big is a toaster to be able to maneuver enough air to be able to correctly purify an averaged size room. Casters can help ensure it is significantly better to move your air purifier throughout the house, specially if you have a unit that will handle considerable amounts of air. Handles are also useful, since it enables you to easily lift the unit from 1 room to some other.

Remote Control

  • Allows you to easily control and alter the settings associated with air cleaner from a comfortable distance, increasing accessibility.

Filter Availability

  • Unfortunately, we see all of it the time that perhaps the big companies with household names make electronic home air cleaners without providing an assurance for just how long you are able to acquire replacement filters. After the unit is not selling well any longer, or they feel it is time to “upgrade” it and alter its looks and features, the model in addition to creation of the replacement filters for it are discontinued.

Timer Settings

  • Turning the system on / off during times of the day/week, lets you save energy and prolong the filter life.

Multiple Fan Speeds

  • Alter the speed setting to your preference, to suit your indoor pollution level or sound preference.

Air cleanser buying guide – maybe


  • Ionic electronic home air cleaners are marketed to be quiet and efficient; however, in addition they have a tendency to release ozone into any room, not making them perfect for everyone.

Air cleanser buying guide – do not touch

Ozone Generators

  • Be skeptical of air purifiers which can be straight up ozone generators. These units produce considerable amounts of ozone by design and form a serious threat to your quality of life.


  • Some air purifiers use a filter density known as Ultra-Low Particulate Air (ULPA), claiming this is certainly superior to HEPA (High Efficiency Particulate Air). These filters drastically reduce airflow so that as such limit the performance regarding the air cleanser.

Incineration and Combustion

  • This particular filter technology does not take pollution out from the air, but simply burns it. Burning dust as well as other pollution in the air does not directly result in cleaner air… also, whilst incineration will not allow you to move very much air quickly – a key dependence on any decent air cleaner.

Air cleanser buying guide – other factors to consider


  • Any air purifier you purchase in the UK should come with a 2 year warranty; some air cleaner manufacturers make an effort to sell you additional extended warranty or make an effort to get your contact details in substitution for additional warranty. Make sure to check what the warranty covers, such as motor/ fan, display, other electrical components and labour. Consumables, such as filters are typically not covered by an air purifier warranty. Also, make sure to check if customer action will void the warranty. Most warranties will for instance only connect with the initial purchaser associated with unit and will not transfer to subsequent owners.

Filtration Efficiency

  • As you can see from the table below, different concerns require different filtration efficiencies. The bigger filtration efficiencies are achieved by HEPA or HyperHEPA filtration (so long as it applies to your whole system filtration efficiency and not only a ‘theoretical’ filter efficiency) whilst lower filtration efficiencies are achieved from using filters with a lowered filtration efficiency such as for instance ‘HEPA-like’ or ‘HEPASilent’ filters. It’s very common that manufacturers usually do not display the particular filtration efficiency regarding the air cleaner all together, but only provide customers with a misleading theoretical filtration efficiency. If ionisation is used then it’s worthwhile to learn that the filtration efficiency will reduce steadily the more polluted the collection surface/filter gets. The performance of the unit can drastically decrease because of this. Furthermore, in the event that unit is not leakage free, the degree of leakage will increase because the filters become more loaded too, further decreasing efficiency. Thus, some ionisers may have a top filtration efficiency to start with but after some time the filtration efficiency will gradually decrease.


  • The noise level will be different depending on the speed setting the unit will be applied to. It is critical to think about your noise tolerance, and take into consideration where in fact the air cleaner is likely to be used. All proper home air cleaners will produce some standard of noise; with respect to the speed setting the system will be applied to. However, you shouldn’t compromise the cleaning performance of the unit for the comfort of reduced noise levels. A fan that is too small or this is certainly moving too slowly may not be pushing enough air to properly filter the atmosphere inside the room it is getting used in. A very important factor to be skeptical of is when manufacturers are not specifying the noise level on different speed settings regarding the air cleanser. It really is unfortunately quite common for many manufactures to market their air cleaner only on the noise standard of the quietest settings. With respect to the technology used, some air purifiers are quiet at first but become noisier the more used the filters are. If the filters are loaded, then the unit will emit more noise as the unit is working significantly harder, trying to pull air through the filters. To find out more about assessing the noise quantities of an air purifier visit our Blog post Quiet Air Purifier


  • Investigating online is a good idea; however, it is often hard to say how liable a source actually is. Some sites are not particularly knowledgeable about air purification. Some formerly independent review sites have been bought by air purifier manufacturers, and now attempting to promote their very own products whilst the best. Here is a summary of sites which do independent air cleanser testing:
  1. Consumer Search
  2. Consumer Reports
  3. Best Buy

To see overview of the best air cleaner testing sites, visit our air cleaner reviews on location: air purifier reviews

  • Regularly maintaining an air cleanser is essential to guarantee the unit is working effectively. To have maximum performance from the air cleanser it is important to replace the filters regularly. You need to find out the cost and average life time of each and every filter before purchase. However, remember that actual filter life will greatly be determined by usage and contamination levels. Be skeptical of electronic home air cleaners which require very frequent filter replacements. Also be aware of air purifiers which need you to clean/or wash the filters.

Manufacturer’s Reputation

  • The manufacturer’s reputation is an important deciding factor, since the connection with past customers deserves some consideration. Some manufacturers and products are highly respected in the air purifier industry for a reason, building their portfolio over time through products which work and providing great customer service. You may always find manufacturers who make various claims about their products or services but have quite little to guide these claims.