The history of air filtration is extensive. In ancient times, people used simple techniques like linen and straw to sift away dust and other particles from their living spaces. It worked astonishingly well for its time; it was like air filtration in the Stone Age. The modern air filter was invented in the 1940s. Fiberglass filters appeared out of nowhere, as if someone had waved a magic wand. These modest filters marked a significant turning point in the history of indoor air quality.Ā 

Today we have many options when it comes to choosing air filters that go into our homes, and  every filter type has a distinct personality and peculiarities of its own. Fiberglass filters are inexpensive and easily accessible. While fiberglass filters excel in affordability and airflow, they might not catch the tiniest particles. Additionally, they need more frequent replacements compared to some other filter types. 


Cost-effective: Ideal for homes on a budget.

Minimal HVAC stress: The air is comfortably flowing.

Pleated filters are dependable companions in your quest for better air quality. They function admirably while being affordable.


They have a higher surface area for capturing particles, which improves filtration.

Longer lifespan: These filters are dependable and last a long time.

They cost a little more than fiberglass filters, but they’re still worth it. Verify that your HVAC system can withstand the added force.

HEPA Filters

When allergies strike, you can count on HEPA (High Efficiency Particulate Air) filters as your savior for clean air.


 Exceptional filtration: They are like air ninjas, capturing particles as small as 0.3 microns.

 Allergy relief is ideal for those who need relief from allergens in the air.

 Extremely clean air: They eliminate some viruses, dust, and mold spores.

The mysterious filters are electrostatic ones, which use static energy to attract particles to their trap.


 Impressive particle capture: They catch the little things like magicians in the air.

  Reusable: You can save money by washing and reusing some items.

They do need to be cleaned frequently, or else their strength will decrease. Verify that your HVAC system is operational.

The Dangers of Subpar Filters and Carelessness

A word of warning before we come to a close on this epic filter odyssey. It could seem like a good deal to use the lowest filters you can find, but watch out for fake filters. Low-grade filters won’t be able to capture enough particles, which will result in poor indoor air quality and overworked HVAC systems.

Regular filter replacement and cleaning can improve airflow, increase HVAC efficiency, and potentially save on expensive repairs. Keep in mind that if left in the dark, even the most valiant filters won’t be able to save the day.

Schedule a consultation with our professionals at Koala Cooling if you’re unsure of which filter is your air’s shining savior. We’ll assist you in selecting the ideal filter and give your HVAC a maintenance check to ensure you are running smoothly.