Big Air Filter Vs Small

There are pros and cons to both big and small air filters. The size of the filter will determine the amount of airflow it can provide. A big air filter will have more surface area, which means it can capture more airborne particles.

However, a smaller air filter will have less surface area and will need to be replaced more often.

Do you know the difference between a big air filter and a small one? It may seem like a no-brainer, but there are actually some key differences that can make a big impact on your indoor air quality. Here’s a look at the pros and cons of each so you can decide which is right for your home:

Big Air Filter Pros: 1. Can trap more airborne contaminants: A larger surface area means that more particles can be captured by the filter, making it more effective at improving indoor air quality. 2. More efficient: A bigger air filter doesn’t have to work as hard to do its job, which means it will last longer and be more energy-efficient in the long run.

3. Better for allergies and asthma sufferers: If you or someone in your family suffers from allergies or asthma, a bigger air filter can make a big difference in reducing symptoms. 4. Greater peace of mind: Knowing that your air filter is working overtime to keep your family safe from harmful airborne contaminants can give you peace of mind – something that’s priceless!

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Is a Bigger Or Smaller Air Filter Better?

As you know, one of the most important components of your HVAC system is the air filter. It helps to remove contaminants from the air and improve indoor air quality. But what is the best size for an air filter?

Is a bigger or smaller air filter better? The answer to this question depends on a few factors, including the type of HVAC system you have and the level of contamination in your home. For example, if you live in an area with a lot of dust or other airborne particles, you may need a larger air filter to trap all of those particles.

On the other hand, if your home is relatively clean, you may be able to get away with a smaller air filter. Another factor to consider is the type of HVAC system you have. Some systems are designed to work with specific sizes of air filters.

So, if you have a strange-sized opening for your air filter, it’s best to consult your HVAC contractor before buying an off-the-shelf model that might not fit correctly. In general, though, most homeowners can get by with a standard-sized furnace filter. The MERV rating (which stands for Minimum Efficiency Reporting Value) is a good way to compare different models and find one that will work well for your needs.

A higher MERV rating means that the air filter will trap more particles; however, it can also restrict airflow more than a lower MERV-rated filter.

Does Air Filter Size Make a Difference?

It’s a common question we get here at FilterBuy: “Does air filter size make a difference?” The answer is, unfortunately, not as simple as a yes or no. In order to understand why let’s first take a look at how furnace and central AC systems work.

Both types of systems have an evaporator coil that sits inside the unit (your furnace if it’s a gas furnace; your condenser if it’s an air conditioner). This coil contains refrigerant, which changes from a liquid to a gas as it absorbs heat from the air passing over the coil. The blower motor in both furnaces and central ACs then forces this newly-gassed refrigerant through the system’s ductwork and into each room of your house via supply vents.

As the refrigerant passes through your ductwork on its way to each room, it picks up dirt and other airborne particles. These particles can come from many sources inside your home, such as cooking smoke, pet dander, dust mites, fabric fibers shed by clothing and upholstery, human skin cells (yes – we constantly shed them!), cleaning chemicals used inside the home, pollen carried in on shoes and clothes from outdoors…and the list goes on. In short: there are countless tiny particles floating around in your indoor air at any given time!

And when these particles pass through your HVAC system’s evaporator coil and condenser coils (where heat is exchanged), they can cause those coils to become dirty much more quickly than if there were no particles present in the airflow. A clogged or dirty evaporator coil can cause all sorts of problems for your HVAC system – decreased efficiency leading to higher energy bills, ice buildup on the coils (in an AC), reduced capacity leading to hotter/colder rooms than others in your home…and ultimately complete system failure requiring expensive repairs or replacement. So now that we know all that…does air filter size make a difference?

It can! A properly-sized air filter will do two things: 1) trap airborne particles before they have a chance to enter your HVAC system.

2) allow proper airflow through the filter so that trapped particulates don’t restrict airflow and cause bigger problems down the line.

Can an Air Filter Be Too Big?

An air filter can be too big if it doesn’t fit properly in the housing unit. If the filter is too large, it can block airflow and reduce efficiency. It’s important to choose the right size air filter for your specific needs.

What Happens If You Put a Bigger Air Filter in Your Car?

If you put a bigger air filter in your car, it will allow more air to flow into the engine. This can lead to increased power and performance, as well as better fuel economy. However, it is important to note that a bigger air filter may also cause your engine to run hotter, so be sure to keep an eye on your engine temperature gauge.

Does a Bigger Air Filter Mean More Power

If you’re looking for more power from your air filter, you might be tempted to go with a bigger size. But does a bigger air filter mean more power? The answer is yes… and no.

A bigger air filter will flow more air, but only if it’s not restricted in any way. If the larger air filter is restricted by a smaller opening, then it won’t flow as much air and won’t provide as much power. So if you’re looking for more power from your air filter, make sure it’s not restricted in any way.

Otherwise, you might be better off sticking with a smaller size.


There’s a debate raging on the internet about whether big air filters or small ones are better. The argument for big filters is that they can cover more area and therefore keep your home or office cleaner. The argument for small filters is that they’re less expensive and easier to change.

So, which is the right choice?

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