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5 Things to avoid when buying an Air Purifier

Here are ALL the common mistakes people make when buying an air purifier

#1 Recommened Air Purifier in 2026
Mistake 1

Buying the Wrong Size Is a Waste of Money

Even the best air purifier won't work if it's too small for your room. Always compare the CADR (Clean Air Delivery Rate) and aim for a system capable of around 4 air changes per hour (ACH) for the space you're trying to clean.

Mistake 2

If It Can't Capture the Smallest Particles, Don't Buy It

Sub-Micron Particles Are Often the Most Dangerous

Look for filtration that captures at least 99.97% of particles down to 0.3 microns, along with activated carbon to help reduce odours, smoke and VOCs.

Mistake 3

No Independent Testing? Dont Walk. Run

Anyone can make performance claims. Reputable brands back them up with independent third-party laboratory testing that verifies filtration efficiency, airflow and real-world performance not just marketing promises.

Mistake 4

Replacement Filters Cost More Than The Purifier Itself

The purchase price is only part of the cost. Most air purifiers require replacement filters every 6–12 months, which can add hundreds or even thousands of dollars over the life of the unit.

Consider the total cost of ownership before making your decision.

Mistake 5

Will You Still Be Able to Buy Filters in Five Years?

Many brands discontinue older models, making replacement filters difficult or not possible to find.

Choose a company with a proven track record, local customer & phone support and a long-term commitment to keeping your purifier running for years to come.

The air purifier that ticks all the boxes.

Try AIR REPAIR Purifier
  • ✓ $0 filter replacement. Ever.
  • ✓ Captures what others miss. 99.97%
  • ✓ Full-time local support team

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The only Air Purifier that ticks all the boxes

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Built to last with washable filters. $0 spent on replacements, year after year.