Air Purifiers Buying Guide

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Written By Ava Bennett
Air Purifiers Buying Guide

Breathing clean air has become more of a privilege than a basic right because the environment we live in may not have as clean an air as it was fifty years ago. Especially if you live in a dense city or a busy street where cars are constantly passing by, you know that air quality is compromised. When you have air that is contaminated, you become concerned for your respiratory health. The question is, how do you battle invisible enemies such as air contaminants? 

Take the bad and filter it out and let the good continue to flow. Air purifiers do exactly that job.

Air Purifier For Homes

Though air purification contraptions go back as far as 1830, residential air purifiers made their first rise in the 1960s in Germany. Today our air purification technology has become far more refined as consumers dictate their needs for air purification. In a highly industrialized society such devices promoting clean air have become even more relevant.

New to the idea of air purifiers? Then let us break down the air filter category to guide you towards the best air filters in the market.

Filter-Free or True Filter Purifiers?

For most part of this air purifier buying guide we are going to discuss and cover on the air purifiers with actual filters that play the significant role of keeping your room air clean. However, if you do further research on your own you will encounter products that claim filter-free air purification capabilities.

These filter-free air purifiers do work on oxidizing and ionizing purifying methods similar to purifiers with physical filters. They also boast UV-light disinfection to deal with microbial organisms or bacteria.

However, most household appliance experts would insist that the most effective air purification devices should carry at least a True Hepa filter in it.

What is a True HEPA Filter?

True HEPA filters or High Efficiency Particulate Air are scientifically proven and tested filters that can capture 99.7 percent of particles and microbes of sizes as small as 0.3 microns.  If you are not familiar with what 0.3 micron is, then the size list below can help you visualize what the filters are blocking out:

True HEPA Filter
  • Spores: 3 – 40 microns
  • Mold: 3 – 12 microns
  • Bacteria: 0.3 – 60 microns
  • Emissions from Cars: 1 – 150 microns
  • Oxygen (02): 0.0005 microns

The use of the specific label of “true-HEPA filter” must be taken into account when searching for good air purifiers. There will be products out there that will claim “hyper-HEPA filter”, “HEPA-type”, or even “HEPA filter” are not as efficient as True HEPA filters which are certified to do the 99.7% particule capture and 0.3 micron size of filtration.

What To Watch Out For In Purifiers

It really is not as simple as choosing one air purifier that does the job better than any other purifier in the market. Some brands can carry several variations of the product that specialises on filtering certain contaminants.

So where do you begin in your search for the air purifier for your home?

Room Size

Estimate the size of the room you wish to use your air purifier in. Product specifications of air purifiers will tell you the area that it can cover but it is best to treat these numbers with a conservative approach. For example, an air purifier would have specifications that will cover a room that is 300sqft. However these are industry tests done in a completely empty room that may not have similar conditions to your room. The best bet would be made on air purifiers with larger capacities than the room you wish to use it in.

Filter Selections

Best air purifiers are not dependent solely on a single purification method or filter. Choose a device that offers filters that particularly targets your problem particles. We can go through these filters so you know which filters are highly effective solutions to your air problem.

  • Pre-filter
    Pre-filters are something you definitely would want to see in your air purifier. They help in the initial filtering process and will visibly catch large particles such as dust or even hair. Not only do they help in filtering, they also protect the next layers of filters so you do not have to frequently replace these finer layers. If your air purifier comes with a washable pre-filter this is highly recommended. Pre-filters usually need replacement after three months. But if you get the washable type, you can extend the use of a pre-filter. Just remember to clean it off every now and then.
True HEPA Filter
  • True HEPA filter
    We have discussed above the importance of a True HEPA filter so you need to be on a lookout for air purifiers certified to have this kind of filter. Battling allergens and other particulate matter that may trigger your respiratory system, True HEPA filters are your tried and tested shield.
  • Activated Carbon filter
    This kind of filter is interesting because it is not just used in household air purifiers but also in military-grade masks. It filters out gases and VOCs or volatile organic compounds. If you have this in your air purifier, it helps to make your air clean and pet-friendly. Some pets, like birds, are very sensitive to household chemicals. Take for example teflon from your frying pans may be toxic to your pets but not as fatal for you. Activated carbon absorbs that. They also help in absorbing unpleasant odors so it works great as well for rooms where you have your pet living in or where a stubborn smell seems to linger. 
  • Ionic Air Filter
    Aside from just physically blocking out particulate matter, the ionic filter utilises different charges of ions so that it attracts these particles to the filter.

Some air purifiers may promise a UV light disinfection process on top of their existing air purifiers so that may be a consideration. However it is not necessary that the UV light works on killing the bacteria mid-air. UV light exposure requires a certain length of time to kill bacteria.

Pricing Range For Air Purifiers

You could find some air purifiers priced at around 500 dollars and this could go all the way up to 1000 dollars depending on the CADR or Clean Air Delivery Rate. Of course if you are aiming to filter a rather large room then you will end up buying a more expensive air purifier. Or you could opt to buy two smaller ones but place them on opposite ends of the room.

Final Reminder On How Air Purifiers Work

There comes a point that you will be set on buying an air purifier for yourself because of the promise of clean air in a certain square feet area of your house. However something that might not be mentioned on product brochures is the limitation of air purifiers.

True HEPA Filter

First off, air purifiers are not vacuum cleaners. There are a great deal of contaminants that quickly settle down on surfaces such as your furniture or the floor. Air purifiers only capture these particles that are suspended in air so they do not in fact replace the actual cleaning of your room. They help lessen dust accumulation by actively filtering the ones in the air.

Should you decide that the air filter is what you need for your allergens or for your pet, then this guide is on the way to helping you make the right choice.

Our team has considered all the factors outlined in this buying guide, along with their expertise and knowledge in Air Purifiers, to recommend the top choice for you. You can shop being confident that someone has considered all relevant information and you will get the best Air Purifiers to meet your needs. Happy shopping!