If you’re looking for where to buy an air filter, you are in luck. Various places specialize in selling tons of air filters. 

Our top pick is FilterBuy. It offers not only subscription services but also one-time purchases services offering. While it does have a few downsides, it offers free shipping and a streamlined shopping experience. Other places also offer convenient shopping experiences and various filter options. 

The best way to improve your home’s air quality is to buy an air filter. Luckily, there are so many places where you can buy air filters. However, narrowing down the best sites might be challenging.

In this article, we’ve come up with the best options to help you determine where to buy an air filter. Many of the places we’ve mentioned below offer subscriptions and one-time purchases. So you can choose based on your preferences.

Brand Why They’re Great Where to Buy
Filti 📦 Great subscription service

👍 Nanofiber technology

🇺🇸 Made in the USA

[insert link/button to buy]
Second Nature 💨 Free delivery

📏 Lots of sizes

[insert link/button to buy]
Air Filters Delivered ️ Carries multiple brands [insert link/button to buy]

 

where to buy an air filter

 

Our Top Picks for Where to Buy an Air Filter

You need to remember one of the few things, especially when buying an air filter. Choose one that best suits your home. Here are a few of our top picks for where to buy an air filter.

1. Filti

Why choose Filti

Filti is an excellent choice for where to buy an air filter. Filti uses our patented nanofiber technology to give you the cleanest air every day at home. We offer highly efficient products with bacteria and virus protection so you can save money on your energy bill while you breathe better. Plus, we are committed to providing the best quality products by sourcing and manufacturing our filters in the USA.

How to Buy an Air Filter at Filti 

It’s super easy to buy an air filter at Filti. Simply add one of our air filters to your cart on our website or customize your very own Filti subscription. We’ll deliver your air filter on time every time. 

2. Second Nature 

Why choose them

Second Nature has excellent air filter subscription services. They offer free delivery for all their air filter products. What’s more, if you sign up for subscription services, you don’t have to pay any membership fees. Additionally, they sell more than 66,000 air filter sizes ranging from 1 to 6 inches. Their air filter product selections are affordable and cost-effective if you’re working with a budget. 

With thousands of customer reviews and a 4.6 out of 5 Google reviews, they are one of the biggest air filter sellers. Although they’re not accredited by the Better Business Bureau (BBB), they also have an excellent Trustpilot rating of 4.7 out of 5, owing to their outstanding customer service.

Overview 

Second Nature was founded by Thad Tarkington and Kevin Barry. The company is committed to making buying air filters easy and seamless. 

They offer a wide range of high-quality, pleated air filters of different sizes and thicknesses. Plus, they have customizable filter service options. If you sign up for Second Nature, you get a free trial, where the first delivery of air filters is on them. 

Over the last couple of years, they’ve expanded into the refrigerator and water filtration systems niche. But, air filter products offering remains the company’s top-selling devices. Their subscription service helps you stay on top of all air filter replacements. It’s also great if you want to order different-sized filters in bulk. Unfortunately, one major drawback is you can’t order multiple different types of filters at once, only in separate orders. 

How to Buy an Air Filter at Second Nature 

To buy an air filter at Second Nature, you’ll need to follow their five-step process and answer some questions. The questions are intended to match you with the correct and perfect filter to match your needs. 

To begin, sign up for Second Nature. Answer some questions on the type of filter you need. These questions include the width and thickness of the air filter. You’ll need to provide some additional information on the type of filter you had. 

Next, Second Nature will display different air filter sizes for comparison. You’ll be able to see the different prices side by side. 

The cost for each air filter typically starts at $10 to $30. Once you’ve selected your preferred type of air filter, you can select the shipment frequency. Second Nature will deliver a replacement based on the frequency you indicated. You can, however, cancel or change it anytime. 

3. Air Filters Delivered

Why Choose them

Compared to Second Nature, Air Filters Delivered offers single-purchase. On top of that, it also offers subscription-based buying options. Their most significant selling point is the wide range of prices and the bulk buying option. They also have a rotating assortment of air filters from well-known manufacturers to choose from. 

Furthermore, Air Filters Delivered provides a complete refund within the first 180 days of purchasing. This is an added plus, given that they also provide free shipping.

Overview

Air Filters Delivered offers free shipping on a one-time basis. Quality and service are at the forefront of Air Filters Delivered mantra. That’s why the company offers a vast selection of products from popular brands such as Honeywell and Carrier. You have the option to buy either furnace filters or HVAC filters.

How to Buy an Air Filter from Air Filter Delivered 

The shop by filter size feature makes buying a filter more convenient. You can select the air filter size based on inches, cutting down on the time you’d typically spend scrolling. They also have a shop-by-size feature or scroll through their MERV rating options. When you shop by size, simply enter the desired filter’s dimensions. 

They’ll then display multiple brands that match the criteria you entered. This is great because it streamlines the entire shopping process. 

4. FilterBuy 

Why Choose them

They sell different kinds of filters, including air filters and HVAC filters. FilterBuy works to provide a more extensive selection of filters at the lowest prices with free shipping. Their shop by filter size feature means you don’t have to spend a lot of time browsing.

 It also gives you an overview of the different filter sizes available. If you’re unsure about what air filter you should buy for your home, their buying guide gives you an excellent breakdown of how to choose the right filter. 

One advantage of FilterBuy is the prices differ depending on the brand, giving you an option to snag more deals. While you can make single purchases, you get a discount when purchasing filters in bulk.

Additionally, Filters Delivered offers a full refund within the first 180 days of purchasing. This is a bonus considering they also offer free shipping.

Overview

FilterBuy positions itself as a leader air filter seller. It aims at providing not only outstanding services but information on everything you need about air filters. FilterBuy reminds its customers of the importance of choosing the right filter for your home and how filters can affect your health.

Their streamlined compatibility options do the work of matching you with the right air filter for your home. You also have the option of buying the filters in bulk. FilterBuy also features a customizable filter option, which means you can the size and frequency of your air filter deliveries. 

How to Buy an Air Filter from FilterBuy

FilterBuy combines convenience and efficiency by providing three different approaches on how to buy an air filter. They have a shop-by-filter size option. This option allows you to select the dimensions for the filter you need without the hassle of browsing through their extensive catalog of filters. 

A reliable option you can choose is shop by filter brand. First-0time shoppers can browse through popular air filter brands and select based on the brand they love. Some popular brands they feature include Trane and Rheem. 

FilterBuy also allows you to shop by MERV rating. You can enter the MERV rating of choice, and FilterBuy will display options. All three options are incredibly user-friendly, with intuitive filters for any use. No matter your preferences, you’re bound to find the right filter to suit your needs. 

5. FilterTime

Why Choose Them

FilterTime has excellent customer service and offers three-day delivery on all purchases. They also provide a basic subscription service system with custom filters.

Furthermore, it offers a simple canceling process to customers. Despite its limited product selection of air filters, FilterTime provides high-quality air filters.

Overview

Blake Kosh founded the company in 2017. The mission of FilterTime is to provide the most incredible filters through a simple subscription service structure. You have the option of receiving delivery monthly or every three months. It also includes a one-time purchase option. However, they recommend opting for the subscription service so that you can be on top of your filter replacements.

How to Buy an Air Filter from FilterTime

To get started, create a FilterTime account. Using their filter by size option, enter the size information for the filter you need. After completing all needed fields, three distinct valued MERV-rated filters will display.

Filters typically cost between $12 and $20, depending on the MERV rating. After choosing the filter you want, they will ship it within three business days. FilterTime also provides a complete refund if you are dissatisfied with the filter. However, the full refund is only available during the first 100 days of purchase.

 

best place to purchase air filters

 

What to Consider Before you Buy an Air Filter 

There are several factors to consider before you buy an air filter. Keep reading to learn more about all you need to know about how to buy an air filter. 

Cost of Replacing Filters

Depending on the air filter you plan to buy, you’ll need to consider the cost and maintenance required. For example, you’ll need to replace pleated filters every 30 to 60 days. 

While for activated carbon filters, every 90 days would be ideal. The cost for the replacement will vary depending on the type of filter. Allergen air filters generally cost around $20 per replacement, while odor control filters, on the hand, can cost at least $50. 

Certifications 

There are a couple of standard certifications you want to look for when determining where to buy an air filter. For example, the Energy Star Certification. Air filters undergo a thorough test to check the level or amount of energy they consume. Energy Star certified air filters could save you up to 40% more energy than other uncertified filters. 

Other certifications to look out for include the AHAM certified logo. This means that the air filter is verified by the Association of Home and Appliance Manufacturers. The Association of Home and Appliance Manufacturer certification means the air filter has a clean air delivery rate (CADR). Air filters with higher CADR perform better. 

Room Size 

You should check the air filters’ room size specifications. AHAM tests most air filters to certify the recommended room size. It’s best to check the AHAM ratings to see the suggested room size recommendation for the most common type of air filter. Contact our experts for assistance if you’re unsure how to determine the room size. 

Noise 

Choose an air filter not just by how efficient it is but by how noisy it may be. Because the air filter needs to be constantly running, ideally, you should buy a quiet air filter.

For example, an air filter with a noise rating of 50 decibels is approximately equal to a refrigerator. You may be able to determine how loud an air filter will be by checking the packaging or the manufacturer’s website. 

Filter Size

You should buy a filter that matches the filter you previously owned. Filter size is represented in inches by multiplying the height, width, and thickness. Some filters are only an inch thick, while others range from two to even five inches. 

Customer Service

Suppose you have any problems with your air filter. In that case, you need to consider dealing with a company that provides excellent customer service. It’s advisable to buy an air filter from a reputable company with positive customer feedback. This way, any problems you encounter can be resolved as soon as possible.

 

how to buy an air filter

 

Conclusion 

After reviewing different options of where to buy an air filter, these are top picks. They offer more variation and options. 

Second Nature is excellent for different filter sizes. However, Air Filter Delivered is also a good option because it provides a discount for bulk purchases. In addition, you can shop by filter size, brand, and MERV rating.

FAQ’s about Where to Buy an Air Filter

1. What is the CADR Rate? 

There are different CADR scores. Air filters that receive a CADR score of 240 have excellent efficiency. While 240 to 180, 179 to 120, and 119 to 60 are Very Good, Good, and Fair, respectively. If an air filter has a score under 60, it has poor efficiency. 

2. How Do I Determine my Air Filter Sizes? 

First, find the air filter in your home. Air filters are typically located in your HVAC system. Once you’ve located your air filter, it’s easy to figure out your air filter sizes. You will see a set of numbers on the outside of your air filter. These numbers are typically rounded off to represent the size you need to buy.

3. Can I Use Two Air Filters in my HVAC System?

It is not recommended to use multiple filters at once. Using more than one filter at a time can significantly increase your electrical bill. It also affects the lifespan of your HVAC system. It can decrease your HVAC system efficiency and lifespan. 

4. How Often Should I Replace My Air Filter?

Air filters should be replaced every 30, 60, or 90 days depending on the type of filters. Some filters may need to be replaced at least once a month if you have breathing problems or more pollutants. 

5. How Do I Measure My Air Filter?

The air filter size will often be written on the side of the filter. If it’s not, you’ll need to measure the size yourself. First, measure the length and width of the air filter. 

Next, measure the thickness of your filter from front to back. Your measurements should include Length, Width, and Depth. 

6. How Much Maintenance is Required for the Air Filters? 

This depends on the type of air filter you have. Most air filters need to clean or replaced depending on the specifications. For example, they’ll need to clean at least every month for washable filters. While permanent filters will need to be replaced based on the brand or specifications listed.

7. What is a Micron?

A micron is also known as a micrometer. It is one-millionth of a meter and is roughly 1/25,000th of an inch. Microns are a measurement unit for airborne particle sizes. This is crucial because it can tell you how many pollutants are in your home that is not visible to the naked eye. 

8. Are Pleated Air Filters Better than Fiberglass?

Pleated air filters are high quality compared to fiberglass. They can have a filter lifespan of 3 to 6 months. But this depends on the level of pollutants in your home and the brand of the filter. However, fiberglass filters last up to 30 days and are mainly used to trap small particles. Pleated filters are also pricey because of the components compared to fiberglass. 

9. What’s the Difference Between Air Filters, Furnace Filters, and AC Filters?

There are subtle differences between air filters and other types of filters. Aside from the noticeable size differences, the air filters are mostly comparable to HVAC systems. While furnace filters are compatible with furnace systems and AC filters for air conditioners. 

10. Are Air Filter Subscription Services Worth It?

Yes, they provide a lot of conveniences. Rather than scheduling when you need to replace your air filter, subscription services help. When you sign up for a subscription service, your air filter will be delivered to you, and you’ll receive a reminder for your next replacement.

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