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"It is health that is the real wealth and not pieces of gold and silver" - Mahatma Gandhi

Well, the glitter in the statement and the value that it brings to life is truly immortal and has been proving its worth since the advent and shall go on forever.

We all have been running the cycles of maintaining health. Maintaining overall health is a concern, especially with our busy lives.

Yet, we have all realized with time that the different aspects of health can’t be ignored. We need to be informed about the food we eat, the products we use for our skin and most importantly about what is in the air that we breathe!

Even our homes are full of pollutants that can affect our health and well-being. Everyday activities can fill the air in our homes with pollutants and allergens.

There are many things that can wreak havoc on our lungs when airborne: smoke, mould, pet dander, dust, and pollen, to name a few. If we are exposed to allergens in a clean home or workspace, and especially if any of us suffer from asthma or other respiratory issues, then an air purifier can help make your life more pleasant.

However, we need to be informed while buying an air-purifier that fits all-important criteria.


Choosing the right air purifier can be confusing. There are huge numbers of charts, studies, and certifications found on air purifiers. Getting to the bottom of all the data and making a good decision is critical. Here is a step-by-step guide to choosing an air purifier.

When considering an air purifier, the suggestions on the steps you should take in the process are:

  • Calculate the size of the room in which the air purifier will be used

  • Choose an air purifier with a high enough CADR for the room

  • Choose the type of filtration you need paying particular attention to specific contaminants

  • Make sure you can live with the air purifier. Noise and ongoing costs are factors you need to consider

  • Avoid air purifiers that contribute to indoor air pollution. Ozone producing air purifiers should be avoided at all costs

1. Room Size Makes a Difference

Before going any further, we should decide what the goal is for an air purifier. Most portable stand-alone air purifiers will effectively filter the air in one room. We should make sure that the purifier we purchase is big enough to match the size of the room we want to filter. Air purifiers are classed by their clean air delivery rate (CADR).

About CADR – Why is it so Important?

Clean Air Delivery Rate (CADR) is a figure of merit that is the cubic feet per minute (CFM) of air that has had all the particles of a given size distribution removed.

The larger the CADR number listed on the air purifier, the more particulate matter the filter will remove from the air. Typically, the larger the room, the larger the CADR number we require.

Portable Air Cleaner Sizing for Particle Removal:

Specific Needs – Why do we need Air Purifiers:

  • Allergies: If one has allergies, one should choose an air purifier designed for allergy relief. They typically have multiple filters, including HEPA filters, to remove indoor allergens

  • Asthma: If one suffers from asthma or if symptoms are triggered by odour and chemical pollutants, one needs to consider an asthma air purifier or an odour and chemical air purifier. These air purifiers contain added odour and chemical filtration as well as HEPA filters for allergen particle removal

  • Smoke: Smoke air purifiers are specifically designed to remove smoke, fireplace soot, and other associated fumes that could aggravate existing respiratory conditions or cause unpleasant odours in your environment

  • Pets: Select air purifiers are designed specifically for handling pets--they remove pet dander, odours, and hair

  • Chemical Sensitivities: If you are extremely sensitive to chemicals, you might consider an air purifier for multiple chemical sensitivities (MCS). These models contain even more odour and chemical filtration and are often manufactured with materials that will not off-gas chemicals into the air and aggravate your symptoms.

2. What Size Air Purifier Do I Need?

To choose the right size air purifier for our needs, we need to consider the square footage of the room we want to purify.

If you have allergies or asthma and are looking for an air purifier to help manage symptoms, we should also consider an air purifier’s air change per hour (ACH) rate. ACH refers to the number of times an air purifier can filter the entire volume of air in the treatment space each hour.

Air purifiers that can clean the air in a space at least four times per hour are best for allergy- and asthma sufferers. A rate of four air changes per hour also ensures that the air purifier thoroughly cleans the air and filters out as many microscopic symptom-triggering allergens as possible to keep our breathing easy.

3. What Features Do I Need on My Air Purifier?

After choosing the type and size of air purifier, we need to consider whether or not we like any special features.

Features include:

  • To save money and conserve energy, look for air purifiers that are Energy Star-rated by the EPA

  • Air quality indicators give real-time updates on the quality of your air

  • Other features include: caster wheels, handles for easy mobility, remote controls, multiple fan speeds, and filter change indicators

4. And lastly, Where Should I Put My Air Purifier?

In most situations, it is recommended that we place our air purifier in our bedroom since that's where we spend most of our time.

Keep in mind that portable air purifiers are designed primarily to purify the air in one room only, so one may need to invest in additional units for other rooms.

Alternatively, you can choose a unit that includes caster wheels, handles, and other portability features to make it easier to move it from room to room.

Let us know, what you think? You are welcome in the comment section.

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