Second Nature, previously known as FilterEasy, is a top-tier air filter subscription service that delivers high-quality filters straight to your doorstep. The company offers a diverse selection of pleated air filters in various sizes and thicknesses, along with customizable options to suit your needs.
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Second Nature Pros and Cons
| Pros | Cons |
|---|---|
|
Always free shipping |
Limited to one filter quality per subscription |
|
Provides customizable filter sizes and a custom shipping schedule |
Also sells filters from other brands |
|
Customers can select the number of filters their home requires in one shipment |
How Does Second Nature Work?
Second Nature makes it easy to find and order the perfect air filters for your heating, ventilation, and air conditioning (HVAC) system, offering more than 66,000 options online. When placing your first order, you’ll go through a simple five-step process, selecting responses to key questions to customize your filters. Here’s what to consider before ordering:
Quantity
You can specify the exact number of filters your home requires when placing an order.
Filter Dimensions
Second Nature provides a wide range of filters in various thicknesses, including custom sizes. If your exact filter dimensions aren’t listed in the dropdown menu, you can manually enter them. A “Find My Filter Sizes” button is also available to help you determine the correct dimensions from your existing filters.
Note: You can order filters of different sizes within the same shipment. For example, if you need two filters measuring 12 x 12 x 1 and two filters measuring 18 x 18 x 1, you can include both in a single order. It all depends on what size AC unit(s) you have.
Filter Quality
Second Nature offers three filter efficiency levels:
- MERV 8: Captures common household dust, lint, and pollen
- MERV 11: Filters pet dander, smoke, and mold spores
- MERV 13: Provides the highest filtration, trapping bacteria, viruses, and fine particles
The MERV (Minimum Efficiency Reporting Value) rating system measures how effectively a filter captures particles of different sizes. Higher MERV ratings indicate greater filtration efficiency. All filters in a single shipment must be of the same quality level—you cannot mix MERV ratings within the same order.
| Minimum Efficiency Reporting Value | MERV 8 | MERV 11 | MERV 13 |
|---|---|---|---|
|
Filters Out |
Pollen, dust, mold, dust mites, and bacteria |
Pollen, dust, mold, dust mites, bacteria, and pet dander |
Pollen, dust, mold, dust mites, bacteria, pet dander, smog, smoke, cooking oil, and virus carriers |
All filters in a shipment must be the same quality. For example, you can’t choose for two out of the four filters to be MERV 8 and the remaining two to be MERV 13.
Shipping Frequency
You can choose how often you’d like to receive filter shipments:
- Every month
- Every two months
- Every three months
- Custom schedule
Second Nature recommends replacing air filters every three months for standard HVAC maintenance. However, more frequent changes may be necessary if you have asthma or allergies, live in a highly polluted area, experience extreme cold climates, or own multiple pets.
Alternatively, a two-month replacement schedule may be ideal if you use only one filter in your home, run your HVAC system year-round, or own a single pet.
Customizing Filter Schedules
According to Second Nature’s Help section, you can set up different schedules for different filters. Simply log into your account, select “Add Subscription,” and enter the details for each filter’s delivery schedule.
Note: You can select the exact date you want your first shipment to arrive. Second Nature will charge you only once your order has been generated.
How Much Does Second Nature Cost?
Customers are charged for the filters they select based on the frequency of shipping. Since Second Nature offers several options for your home’s specific needs, exact pricing ranges from $10–$26 per filter with special pricing for custom sizes and thicker filters.
Changing your filters on time every time can save you 5-15% on your heating and cooling bill and prevent expensive HVAC repairs.
Note: There are no membership fees or commitments that you pay outside of the cost of the air filters.
How Does My Subscription Work?
When you sign up for a Second Nature subscription, you’ll create an account where you can easily manage and update your preferences. You have the flexibility to delay upcoming shipments or cancel your subscription at any time without penalties. If you ever need to pause your service, you can reactivate your account with a single click whenever you’re ready to resume deliveries. This model puts you in control of everything rather than relying on an HVAC contractor’s schedule.
Second Nature Customer Reviews
Second Nature is not accredited by the Better Business Bureau (BBB), but it holds an A+ rating from the organization and is also highly rated on Trustpilot.
Here are a few Second Nature reviews left by customers:
“I have loved Second Nature since I heard about them, and love them more after today. I had a question about a current order, and I called and was only on hold for about 1 minute. I connected with Dave and he could not have been nicer. Great customer service and a great company!” — Bridget V.
“Service was always good and it was easy to set up a subscription. Recently I was sent the wrong size air filter. I had to send a message three separate times to get any sort of response. They apologized for the inconvenience and stated they would send a replacement. I thought great, but quickly was disappointed because they didn’t expedite the replacement air filter. I received the replacement a month after finally getting a response from a rep, but was still charged in full.” — Brett M.
Our Conclusion
You need to change your filters several times each year, but it’s hard to always remember when to replace them or what your sizes are. Second Nature’s service makes it easy to stay on top of this chore, offering high-quality air filters in a variety of sizes.
We also like that customers can customize when their air filters arrive. This service is also convenient for customers who need to order several different-sized filters in one order. One downside to Second Nature is that customers can’t order several different qualities of filters per order.
Remember that Second Nature is only an air filter subscription service. If you need other HVAC services like air duct cleaning or an AC tune-up, you’ll have to contact a different company.
FAQs About Second Nature
How much does Second Nature cost?
Second Nature air filter pricing ranges from $10–$26 per filter with special pricing for custom sizes and thicker filters.
Can I use two air filters in my HVAC system?
It’s not a good idea to stack two air filters against each other. While you may think this will prevent you from having to replace your filters as often, using two filters can raise your utility bill and lower your HVAC’s lifespan by upsetting the airflow in your home.
How often should I change my air filter?
Second Nature recommends that you replace your air filters at least every three months for the health of your heating and cooling system. You may need to replace them every month if you have asthma or allergies or every two months if you have just one filter in your home.