
Choosing the right air conditioner filter for your home can be overwhelming with so many options available. There are four main types of air conditioner filters: fiberglass, pleated, HEPA, and electronic.
Fiberglass filters are the most basic and inexpensive option. They're a good choice for homes with mild allergy sufferers, but they're not effective against larger particles like dust and pollen.
Pleated filters are a step up from fiberglass and can capture smaller particles. They're a good option for homes with moderate allergy sufferers.
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Types of Air Conditioner Filters
There are several types of air conditioner filters, each designed to capture different types of pollutants from the air.
HEPA filters are known for their high efficiency, removing at least 99.97% of airborne particles as small as 0.3 microns. They are commonly used in hospitals and homes of people with severe allergies or respiratory issues.
Electrostatic filters use static electricity to attract and capture particles, don't restrict airflow as much as other high-MERV filters, and can be washed and reused for long periods of time.
Carbon filters contain activated carbon or charcoal that helps remove odors, gases, and larger airborne particles. They are often combined with particle filters to improve indoor air quality.
Pleated filters increase the surface area available for particle capture, reduce airflow resistance, and can remove pollen, dust mites, mold spores, lint, and pet dander.
Here's a breakdown of the MERV rating scale:
Types of AC
HEPA filters are made of dense mats of fine fiberglass fibers and can remove at least 99.97% of airborne particles as small as 0.3 microns. They have very high MERV ratings, typically between 17 and 20.
HEPA filters are commonly used in hospitals and homes of people with severe allergies or respiratory issues. However, they can significantly restrict airflow if not properly sized for the HVAC system.
Electrostatic filters use static electricity to attract and capture particles from the airstream. They don't restrict airflow as much as other high-MERV filters.
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Some electrostatic filters are washable and can be reused for long periods of time. They can effectively remove pollen, dust, smoke, and smog particles when properly maintained.
Pleated filters increase the surface area available for particle capture and allow higher MERV ratings for residential use, typically between 7 and 13. They can remove pollen, dust mites, mold spores, lint, and pet dander.
Here are some common types of AC filters and their MERV ratings:
Carbon filters contain activated carbon or charcoal that helps remove odors, gases, and larger airborne particles. They have relatively low MERV ratings, around 4-8.
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What Are AC?
AC filters are used in cooling or air conditioning applications to trap particles in the air before they enter the AC system.
An AC filter catches dust, pollen, mold spores, and pet dander so they don't circulate through the house. It also protects the air conditioning coil and other cooling components from a build-up of dirt, grime, and other airborne particles.
AC filters can be made of various materials, including fiberglass mesh in a cardboard frame and pleated synthetic fabric in a beverage board frame.
HVAC
HVAC systems are a crucial part of keeping our homes comfortable, but they require regular maintenance to function properly. Dirty, unchanged filters can make your furnace or AC system fail completely, which can end up costing you a pretty penny.
A traditional HVAC system combines a central air conditioner and a furnace, sharing the same ductwork and often the same air returns. This means both units may use shared filters, which can be convenient and cost-effective.
The MERV rating system measures a filter's ability to capture large particles, with higher ratings indicating better pollutant removal. Most homes are best served by a filter with a MERV rating of 8 to 13, but it's essential to refer to your system's user manual for guidance.
The direction of airflow is also crucial when changing the filter. If your filter has an arrow printed on the frame, it should face the direction the air is flowing, typically pointing toward the furnace and away from the return duct.
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Here's a breakdown of the MERV rating and the pollutants it can remove:
Importance of Air Conditioner Filters
Air conditioner filters play a crucial role in maintaining a clean and healthy indoor environment. Americans spend around 90% of their time indoors, where air can be 2-5 times more polluted than outdoor air, according to the EPA.
Changing your air filter regularly can have a significant impact on indoor air quality. An air filter traps dust, pollen, pet dander, mold spores, and other airborne particles, resulting in cleaner air. By changing the filter, you allow it to trap particles more effectively.
Here are the five practical benefits of changing filters according to manufacturer specifications:
- Improve the Air Quality in Your Home
- Get Higher Efficiency from Your System
- Extend the Life of Your System
- You Pay for Fewer Repairs
- You Achieve More Temperature Control
A MERV 8 air filter is a good starting point for most homeowners, but if you have pets or allergies, a MERV 11 or MERV 13 filter may be more suitable. These higher-rated filters can capture even smaller dust particles, dirt, pollen, mold spores, pet dander, and more from your home's air.
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Importance of MERV
MERV ratings are a crucial factor to consider when choosing the right air filter for your home. MERV 8 is the most basic air filter a homeowner will need, but it's not effective for families with pets, allergies, or smokers.
A MERV 8 filter can trap larger particles, but it won't capture smaller dust particles, dirt, pollen, mold spores, pet dander, and other pollutants. Families with pets and/or light allergies would greatly benefit from a more advanced filtration level called a MERV 11.
A MERV 11 filter reduces pet dander, dust, pollen, and other particles present in your home. However, if you have regular allergies and own multiple pets, a MERV 13 filter is the best option. It captures even smaller dust particles, dirt, pollen, mold spores, pet dander, and more.
Here's a quick reference guide to MERV ratings:
- MERV 8: Good for families without pets, allergies, or smokers.
- MERV 11: Suitable for families with pets and/or light allergies.
- MERV 13: Ideal for families with regular allergies and multiple pets.
The Importance of Change
Changing your air conditioner filter is a simple yet crucial step in maintaining a clean and healthy home environment. Americans spend around 90% of their time indoors, where air can be 2-5 times more polluted than outdoor air, according to the EPA.
Regularly changing your air filter can save you 5-15% of energy consumption and utility bills, as stated by the Department of Energy. This is because a clean filter allows the air to flow more smoothly, reducing the workload on your system.
A dirty air filter can reduce the life of your system, with most air conditioners and furnaces lasting ten to 15 years. Changing the filter regularly can help extend its lifespan and prevent you from voiding your warranty.
You should replace your air filter every three months, or more frequently if you have pets or occupants with allergies. A telltale sign that your air filter needs replacing is when you can no longer see through it.
In average situations, it's recommended to change your air filter with the turn of the seasons, or approximately every four months. However, if you have a pet, you might want to change the filter more often, such as every two months with a single dog or cat.
Choosing the Right Air Conditioner Filter
Choosing the right air conditioner filter can be a bit overwhelming, but don't worry, I've got you covered. The MERV rating is an industry standard that rates a filter's efficacy, but it can be confusing for consumers. We've developed a simple application naming system to make it easier to choose the right filter for your needs.
To ensure your filter fits properly in your air conditioner, you need to consider its thickness, length, and width. Most standard air filters are 1-2 inches thick, while media filters are typically 3-5 inches thick. You can measure your current filter or check the dimensions printed on the frame to find the right size.
A MERV 8 filter is a good starting point for most homeowners, but if you have pets or light allergies, you may need a more advanced filtration level like a MERV 11 or 13. Here's a quick guide to help you choose the right MERV rating for your needs:
Remember to replace your air filter often to keep your air conditioner running smoothly and efficiently. A clogged filter can reduce airflow and increase energy bills, so it's essential to choose the right filter for your needs and change it regularly.
Better Temperature Control
Changing your air filter can make a big difference in your home's temperature control.
By improving your home heating efficiency, you'll also see an improvement in cooling.
Dirty or clogged air filters force your HVAC system to work harder, making it consume more energy.
This increased energy consumption can be avoided by simply replacing your air filter.
Changing your air filter will help your system maintain an even and comfortable internal home temperature.
Your system will be better able to cool, and you'll enjoy a more comfortable living space.
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How to Choose Correctly
Choosing the right air conditioner filter can be a bit overwhelming, but it doesn't have to be. The key is to understand what you need and what options are available. MERV ratings are a great place to start, but they can be confusing. That's why Discount Filters developed a simple application naming system to make it easier.
A MERV 8 filter is the most basic air filter a homeowner will need, offering excellent air filtration for homes without pets, smokers, or severe allergies. This filter is a good starting point for most families.
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If you have pets and light allergies, you'll want to consider a MERV 11 filter, which reduces pet dander, dust, pollen, and other particles in your home. This filter is a good choice for people who want a bit more protection.
For those with regular allergies and multiple pets, a MERV 13 filter is the way to go. These filters capture even smaller dust particles, dirt, pollen, mold spores, pet dander, and more. They're a bit more expensive, but the high-quality filtration is well worth it.
Here's a quick reference guide to help you choose the right filter:
What Are Merv Ratings?
MERV ratings are a crucial aspect of choosing the right air conditioner filter for your home. A MERV rating speaks to the filter's ability to capture large particles, with higher ratings indicating better filtration.
There are 16 levels of MERV ratings, ranging from 1 to 16. Most homes are best served by a filter with a MERV rating of 8 to 13. This range captures a wide range of pollutants, including pollen, dust, clothing and carpet fibers, hair, mold spores, and pet dander.
A MERV 8 filter is a good starting point for families without pets, allergies, or smokers. It's a basic air filter that offers excellent filtration for most homes. However, if you have pets or light allergies, a MERV 11 filter is a better option, as it reduces pet dander, dust, pollen, and other particles.
For families with regular allergies or multiple pets, a MERV 13 filter is the way to go. It captures even smaller dust particles, dirt, pollen, mold spores, pet dander, and more. However, keep in mind that a MERV 13 filter is typically more expensive and may put more strain on your HVAC system.
Here's a breakdown of what different MERV ratings can capture:
Remember to always refer to your system's user manual or consult with a Trane employee to determine the best MERV rating for your specific HVAC system.
Right Thickness Matters
The right thickness of your air conditioner filter matters. Most standard air filters are 1-2 inches in thickness, while media filters are typically 3-5 inches thick.
You'll want to ensure your filter fits properly in your furnace or AC system. To do this, measure your current filter directly with a measuring tape or check the dimensions printed on the frame.
A 1-inch-thick filter is a good starting point, as it's a common size. The Filtrete MPR 1900, for example, is a 1-inch-thick air filter that's effective at removing dust, pollen, and smoke from the air, especially at high fan speeds.
However, the effectiveness of a 1-inch filter can vary depending on the fan speed. The Filtrete MPR 1900, for instance, is only average at removing airborne particles at low fan speeds.
Replacing your air filter regularly can also extend the life of your HVAC unit. Working harder to push air through a clogged filter is inefficient and adds to the wear and tear on the system.
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Check for a Second
Larger homes often have more than one air filter, so don't forget to check for a second one at your return vent. The return vent will have a filter that's much larger than your normal vents, typically with a rectangular or square shape and located in the wall.
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In some cases, you might even find an air filter in a ceiling or floor return vent. This is a common setup in bigger homes, so be sure to check all possible locations.
By checking for a second air filter, you'll ensure that your entire HVAC system is running efficiently and effectively. This can save you money on energy costs and improve the overall quality of the air in your home.
Trane Comfort Performance
The Trane Comfort Performance Filter is a great option for improving your home's air quality. It removes dust, lint, pet dander, and other pollutants, so you can breathe easier knowing your indoor air quality is better.
This filter is compatible with Trane systems or any standard HVAC system, making it a versatile choice. It's available from Trane Dealers in select locations.
Regularly changing your air filter is essential for maintaining good air quality and extending the life of your HVAC unit. A clogged filter can cause your system to work harder, leading to wear and tear.
By using the Trane Comfort Performance Filter, you can enjoy better temperature control and improved home air quality.
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Replacing Air Conditioner Filters
Replacing air conditioner filters is a crucial maintenance task that can make a big difference in your home's air quality and energy efficiency.
You should change your air conditioner filter every three months, or more often if you have pets or family members with allergies.
Dirty, unchanged filters can make your air conditioner system fail completely, which can be costly to repair.
Regularly changing your air filter can save you 5-15% of energy consumption and utility bills.
An air filter traps dust, pollen, pet dander, mold spores, and other airborne particles, resulting in cleaner air.
To locate your air filter, look for a one to four-inch slot on your air handler, which is usually installed in a basement, attic, or utility closet.
You'll want to remove the old filter and replace it with a fresh one, making sure the arrows on the new filter are pointing in the direction of the unit.
Replacing your air filter can also extend the life of your system, preventing wear and tear on moving parts.
If you have a pet, you might need to change the filter more often, with a single dog or cat requiring a change every two months.
For a vacation home or a structure with only one person and no pets, you might be able to change your air filter twice a year or even once a year.
Purchasing and Installing Air Conditioner Filters
To purchase the right air conditioner filter for your home, start by checking the dimensions, which are usually printed on the side of the filter frame. The "nominal size" is the size you see printed on the filter, but it's actually rounded up from the actual size to the nearest whole inch.
You'll need to find an air filter that matches the dimensions of your existing filter, or the one recommended by your air conditioner's manufacturer. The nominal size is not always an exact match, so make sure to double-check the actual size before making a purchase.
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Measure the space where the filter will be installed to ensure you buy a filter that fits snugly. This will help prevent air leaks and ensure efficient airflow.
The dimensions of the air filter are crucial, as they determine how well it will fit in your air conditioner. Make sure to check the dimensions carefully to avoid any issues.
Maintenance and Upkeep of Air Conditioner Filters
Replacing your air conditioner filter is a crucial part of maintaining your home's comfort and efficiency. It's a good idea to replace your air filter every three months, but if you have pets or occupants with allergies, you may need to change them more frequently.
Dirty air filters can make your air conditioner work harder, leading to increased energy bills and potentially even system failure. A telltale sign that your air filter needs replacing is when you can no longer see through it.
To keep your heating and cooling system operating at peak efficiency, it's essential to change your air filter regularly. There are general guidelines for filter change intervals: Replace 1" fiberglass/polyester filters every 30 days, 1" and 2" pleated filters every 90 days, and 4"-5" filters every 6 months.
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If you have a traditional HVAC system, it's likely that your air conditioner and furnace share the same filter. This can be convenient, as it means you only need to worry about replacing one filter instead of two. Shared filters also offer more bundle options and savings when shopping for replacement filters.
A clean air filter can extend the life of your HVAC unit by reducing wear and tear on the system. Working harder to push air through a clogged filter can lead to premature system failure, so it's essential to replace your filter regularly.
To ensure your air filter is installed correctly, check for an arrow printed on the frame. The arrow indicates the direction the filter must face, which is usually towards the furnace and away from the return duct.
Here's a quick reference guide to help you keep track of your air filter replacement schedule:
Recommendations and Options
For most homes, a filter with a MERV rating of 8 to 13 is best, but it's always a good idea to check your system's user manual or consult with a Trane employee.
A MERV rating of 9-12 is best for pet owners, as it removes pet dander and other pollutants from the air. The Aprilaire Healthy Home 313 MERV 13 filter is a great option for pet owners, as it's excellent at removing dust, smoke, and pollen.
The Filtrete MPR 1550 filter is another good choice, as it capably removes dust, pollen, and smoke with the HVAC system running on both its highest and lowest fan speeds, earning very good ratings.
Here are some general guidelines for choosing the right air filter for your home:
Best HVAC Options
The best HVAC options for your home depend on several factors, including the size of your space, the type of pollutants you're trying to remove, and your budget.
A MERV rating of 8 to 13 is suitable for most homes, but it's essential to refer to your system's user manual or consult with a Trane employee to determine the best filter for your specific system.
The MERV scale rates filters from 1 to 16, with higher ratings indicating better pollutant removal. However, a higher MERV rating may not be the best choice for your system.
Here's a breakdown of the pollutants removed by different MERV ratings:
Replacing your air filter often can also extend the life of your HVAC unit. A new, clean air filter keeps your system running smoother and running longer, which can save you money in the long run.
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Recently Tested
The Filtrete MPR 1900 is a great option for removing dust, pollen, and smoke from the air, especially at its highest fan speed.
You can expect to pay around $20 per filter, which translates to an annual cost of $80 when replaced four times a year.
Airflow through this filter remains strong in both its highest and lowest fan speed settings.
The Filtrete Smart MPR 2200 does a fine job of removing airborne particles at its highest fan speed, but its performance drops slightly at its lowest speed.
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This filter is recommended to be replaced every four months, which adds up to an annual cost of about $120.
Replacing the Filtrete Ultra Allergen Reduction 1500 MPR filter four times a year will cost you around $68 per year.
Airflow through this filter is strong in both its highest and lowest fan speed settings, making it a reliable option.
The Filtrete MPR 1550 Filter is another option to consider, but its performance is not as well-documented as some of the other filters mentioned.
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Frequently Asked Questions
Where is my AC filter in my house?
Check near the thermostat or AC system's air handler, typically where the return duct enters the air handler, for your AC filter's location
What happens if I don't change my air conditioner filter?
If you don't change your air conditioner filter, it can lead to overheating and mechanical failure of your HVAC system. Regular filter replacements are crucial to prevent costly repairs and ensure your system runs efficiently.
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