16x20x1 Air Filters

16x20x1 air filters for small spaces & compact HVAC systems

Not all spaces are large and require ample filter sizes. In fact, one popular compact size for smaller spaces is the 16x20x1 filter. These size air filters are commonly used in smaller residential spaces, such as small homes, apartments and townhouses. This air filter size is uniquely designed to achieve a desired balance between airflow and effective filtration. This size is widely available and more affordable than some custom sizes, making it a popular choice for some smaller residential spaces when this size is needed for proper filtration or to trap particles.

If you are wondering if your system will work with this size filter, you will be happy to know that many HVAC systems use 16x20x1 filters. This includes air conditioners, heat pumps, furnaces and HVAC systems, which basically covers any type of air conditioning or heating system you might have. The standard 1-inch thickness provides easy replacement, meaning you can keep your air cleaner by changing it regularly or as outlined by the manufacturer.

This size of air filter is uniquely suited to small spaces and is especially effective at ensuring a proper fit for effective filtration. A good fit is imperative because when a filter is too large, it fits improperly and can allow unfiltered air to bypass the filtration system and can, in essence, not perform the job for which it's designed. Having an improperly fitted filter can also lead to system damage by causing dust buildup on the internal components. Therefore, you want to ensure that you select the right filter for your system in order to get the most out of your unit. After all, your conditioning and heating unit was likely a substantial investment. You want to protect this investment in as many ways as possible, and a big part of this is proper filter use.

Common HVAC systems that use 16x20x1 air filters for a perfect fit

There are several common brands that call for the 16x20x1 filter size. This includes Carrier, Trane, Lennox, Goodman, Rheem, York, American Standard, Bryant, and more. Therefore, if you have any of these common brands or even some that aren't listed, this size is common! It's also worth noting that this size filter is not associated with just one brand or specific model, and instead is determined by the slot size of the filter slot and the equipment manual for the system. If you aren't sure what size your system calls for, remove the old air filter and see what size has been used already. The numbers 16x20x1 indicate an air filter's nominal size or width, depth and length. This is a common size overall, though, and it is called for by a variety of brands.

In addition, the return vent configurations also vary for this size filter. Common configurations include a fixed hinged return, which is when the grille face is attached with a hinge. This means you can swing it open and easily replace your filter and easily change out your air filter. There are also removable door or face options where the grille face can be detached from the frame. This type of configuration usually uses clips or latches to secure the door and is often found on ceilings or in walls. If you get to choose, be sure to ask for an easy configuration to allow you easy, hassle-free access to your filter, so you can stay on top on air filter changes. Helpful Tip: Set yourself a reminder on your phone for regular air filter changes!

What you should know about the performance characteristics of 16x20x1 filters

In addition to the return configuration and the types of systems and brands that use the 16x20x1, you also should know about the performance characteristics of this air filter size. The optimal filtration will provide good filtration while preventing any sort of damage from constricted airflow. The following are some noteworthy characteristics that will showcase why you might choose this size filter for your system:

• Surface area: Surface area and filtration capacity for this compact dimension is around 144 inches squared, with a face of 2.22 square feet. The surface level expands with the pleating to increase the filtration capacity or the amount it can capture. For example, a MERV 11 can filter a much larger surface area of around 4.9 feet.
• Airflow and pleating: It's important to note that smaller 1-inch air filters, like this one, require special attention to the airflow. This is because the higher efficiency filters in this smaller surface area can restrict airflow. Understanding MERV, along with pleat count, is key to keeping this an optimal balance.(Below, you will find a helpful breakdown of the MERV count and what it means in more detail.)
• Lifespan: A thinner 1-inch air filter, such as the 16x20x1, has a shorter lifespan when compared to a 4-5-inch air filter simply because it has less surface space to capture or trap air particles. This means it will clog with dirt and debris sooner than thicker air filters.

MERV ratings breakdown

The next aspect of this air filter is the all-important MERV rating. MERV ratings are the value given to a filter based on a test method developed by the American Society of Heating, Refrigerating, and Air Conditioning Engineers. Each number means something different in terms of filtration and overall performance. The following is a more in-depth look at the common MERV ratings and the way it is used in various spaces and with different systems, along with some information on system capacity considerations. Read on for more information (all of these MERV ratings are options for the 16x20x1):

• MERV 8: This size air filter is the most optimal airflow choice for compact systems. It is ideally suited for residential spaces and even some offices. It can filter airborne particles like dust particles, pollen, dust mites, pet dander and bacteria. It is rated to filter 90% of common particles.
• MERV 11: This next rating offers enhanced protection without restriction. It is ideally suited for those who suffer with allergens for allergy relief. It also filters all the particles mentioned above but also works to reduce smoke and smog from air particles. It is rated to filter out 95% of common particles.
• MERV 13: This is the maximum filtration that you can choose feasibly for the 16x20x1 size filters. If you move upwards of this, you run the risk of reducing air flow too much. This rating is ideally suited for sensitive environments and effectively filters out pollen and dust, mold, dust mites, bacteria, allergens, cooking smells, odor, smog, smoke and captures pet dander. This rating effectively filters out 98% of common airborne particles.
• MERV 8 Carbon (Odor Eliminator): This version of the MERV 8 rating for the 16x20x1 air filter size adds a specialized odor eliminator aspect for noticeable improvement. It is ideally suited for your home if you have several dogs or want to focus on odor elimination. This rating and specification means it will effectively filter out between 75% and 80% of all particles, even as small as 1-3 microns.

It's important to remember that this compact size is not applicable for all systems. If a unit calls for a larger size, it's not a good idea to install a 16x20x1 in hopes of getting more filtration. This might seem a way to clear more particles, but it doesn't work like that. In reality, to keep the air clear, it's important for you get the correct size on a new filter and a MERV rating that does what you need it to do but doesn't put excessive wear on your system due to airflow restrictions.

Situations you might use a 16x20x1 air filter: Common applications

After learning of the systems that this filter will work with, along with the optional MERV ratings to choose from and other information, it's helpful to consider the common applications of this sized air filter. It is a slightly smaller size than is called for in larger residential or office settings or a store. However, this size offers many benefits and noticeable improvement in air quality when in specific settings. They are as follows:

Small or starter homes: The National Association of Home Builders classifies homes between 400 and 1,000 square feet as small. Some other experts, though, expand this number up to 1,500 square feet, making this size fit into the small home category as well. This sized home is a great example of the type of space that would benefit from a 16x20x1 air filter size. If your home is around this size, your house is a good example of a place suited to this size air filter.

Small condos and apartments: Another common application for this size of air filter is within small condos or apartments. Many Americans now live in condos or apartments instead of single-dwelling homes. Some 44 million Americans are renter according to Self. So, this is yet another example of a beneficial use for these more compact air filters, small condos, and apartments.

Manufactured homes and mobile homes: More and more Americans are now purchasing mobile homes or manufactured homes, with numbers of over 20 million Americans according to HUD. They are great examples of spaces that generally do well with a 16x20x1 sized air filter. If you have a mobile home or manufactured home, there is a good chance your space would benefit from this size air filter.

Compact HVAC installations: Another use of the 16x20x1 air filter is found alongside compact HVAC installations. These are small systems designed for small spaces and can include ductless systems of mini-splits or even those that are designed to condition zones or single rooms.

Guest houses and in-law suites: Because guest houses and in-law suites are usually small spaces set slightly apart from a larger residence, they are ideally suited for this size air filter. Many of these spaces have their own dedicated heating and cooling systems that allow the residents to alter temperature and more based on preference.

Which 16x20x1 air filter to choose for individual cases

Now that you have determined that a 16x20x1 air filter is a good idea for your space, the next step in the process it determine what type of MERV level and specific design of air filter you want to use within your space. Your lifestyle habits, how many people reside in your home and the presence of pets can have a bit impact on this decision. Read on to learn more:

• Standard residential usage: When choosing an air filter for standard residential purposes, ideally, your choice will be between a MERV8 and a MERV 11 as these offer the most broad benefits and optimized airflow.
• Pet owners: If you own several dogs or animals, then the enhanced filtration filters are likely a good bet. Of course, you also need to pair this with more frequent filter changes to get the most benefit.
• Allergy sufferers: No one wants to deal with allergies, especially in the comfort of your own home. Thankfully, the MERV 13 rating is perfectly suited to removing allergens and also provides adequate air flow for this size.
• Odor elimination: When odor removal is key, look for the carbon filter performance option to remove more of that odor from the air. Honestly, how your space smells can instantly impact the overall ambiance of your space, so you want to make sure there are no odors.
• Small spaces: Choose the optimal rating for your compact system to protect your unit as well as get the most filtration out of your filter.

Replacement considerations for 16x20x1: What's a good schedule?

Now that you have looked at why this filter size might be right for you and the rating or specific type that would work best, it's good to note how often these filters have to be replaced. They aren't a set in place and forget it kind of thing, although some do last longer than others. The typical lifespan for this size air filter is 30-90 days. There are factors that affect longevity, like the number of people or pets living in a space, the outdoor air quality, humidity and climate and your lifestyle habits. The amount of time your system will also impact the longevity of your filter. The longer your system and the more often it cuts on and off, the more air is being filtered, which will lead the filter to accumulating more dust and debris, quicker.

Generally, this small size might need more frequent changes because the surface area is smaller and will require new filters more often. The following are some signs to review that indicate your 16x20x1 filter needs changing:

• Visible dust and debris on filter: The filter will look dirty visually and might appear darker than when new. Review it to look for these signs.
• Reduced airflow: You might notice the air coming out of your vents is weaker. This could be because the filtration is reducing too much airflow because of being dirty.
• More dust accumulation: You see more dust around your home settling on surfaces, indicating it is not getting filtered out.
• Unusual odors: Another indication that your filter might need replacing is the presence of odors from mold or debris.
• System problems: Your unit might cycle off more frequently or even start overheating if the air filter is clogged.

As mentioned above, setting an alarm on your phone to remind you to change your air filter is a better idea than waiting for these signs.

Installation tips for installing these filters

The most common locations to find these filters are either on the ceiling or on a wall. When installing these filters, it's key to discover this location and then remove the existing filter. Ensure proper fit in 16x20x1 slots by checking around the edges. It should be a snug fit, slide into place, but not bend the filter itself. Make sure to verify the correct airflow direction. There is an arrow on the side of the filter that indicates what direction it should be placed. Obviously, you might not be able to change the location of these filters, but learning where they are is important and key to keeping a good eye on their condition.

Analyzing the cost of replacement filters

Cost is always important. However, although the purchase price of each individual filter is a key factor and does matter, it is not the only aspect you should analyze. For example, per-air filter cost might be lower, but the filter not as good quality, so you find yourself replacing it more frequently. Ideally, you want to aim for bulk purchasing and subscription benefits for the most savings on high-quality filters and regular delivery, allowing you to store up filters for future use. You will also need to consider the MERV type and determine how often that particular filter will need to be changed. Each type will vary on how frequently they will typically need to be changed for clean air.

Why Filter King air filters deliver superior value

Now that you have learned why this filter is a great size for many spaces and determined other characteristics that go along with this size air filter, it's time to consider what brand to buy. We at Filter King offer MERV value certifications and accuracy while ensuring optimal construction standards on our 16x20x1 compact air filters. We also offer precise 16x20x1 dimensions guarantee, along with optimized pleat count for this size air filter, and regular stock of this filter size. Overall, this means you are getting a cheaper, more convenient way to maintain the health of your heating and cooling unit and to create optimal airflow in your home.

Quick decision guide: How to choose the right filter

When making your filter decisions, you want to consider the following basic points:

• System compatibility verification: This means that the filter is compatible with your unit.
• Household needs assessment: How many people reside in the space, how often are you running your unit?
• MERV selection for compact systems: Choose the right MERV value for your compact unit.
• Budget considerations for monthly replacement: Determine your budget and ensure affordability for each option.
• When a higher MERV is worth the investment: Realize that sometimes it's cheaper in the long run to pay more up front for a higher MERV air filter that will continue to filter air for longer and require less frequent changes.