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Actual Size: 23.50x35.50x0.75"

3 month filters
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Made in the USA
Ships in 24 hours
Available In MERV Rating: 8, 13, 11
Made in the USA
Ships in 24 hours
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MERV 8 | MERV 11 | MERV 13 | |
|---|---|---|---|
| Best for | Standard Residential/Commercial Healthy Families | Superior Residential/Commercial Allergy Sufferers | Optimal Residential/Commercial Hospital Grade |
| Comparable ratings | MPR 600 & FPR 5 | MPR 1000-1200 & FPR 7 | MPR 1500 - 1900 & FPR 10 |
| Filtration | Captures 90% of Airborne Particles | Captures 95% of Airborne Particles | Captures 98% of Airborne Particles |
| Dust, lint & debris | |||
| Mold, pollen | |||
| Dander, dust mites | |||
| Smoke & Smog | |||
| Bacteria | |||
| Odor, vocs |
Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.

Change your filter every
6 weeks
to ensure indoor air quality is at its best.

Change your filter every
2 months
to avoid shedding and odor buildup.

Change your filter every
2-3 months
as having clean air is even more important with children in your home.

Change your filter every
6 weeks
to ensure indoor air quality is at its best.

Change your filter every
2 months
to avoid shedding and odor buildup.

Change your filter every
2-3 months
as having clean air is even more important with children in your home.
At Filterbuy.com, we’ve spent years refining what makes a great 24x36x1 HVAC and furnace air filter—and it goes beyond just the right fit. Based on direct feedback from homeowners and our own in-house performance testing, we’ve designed filters that deliver superior airflow, trap more airborne particles, and last longer than the average store-bought brands. Proudly made in the USA and crafted to meet the demands of real homes like yours, our filters are built for cleaner air, lower energy bills, and peace of mind. If you’re looking for reliability and results backed by experience, you’ve come to the right place.
24x36x1 filters trap dust, allergens, and pollutants.
Custom-made for a perfect fit.
Fast, direct-to-door shipping.
MERV 11/13: Better for pets, allergies, or high sensitivity.
Up to 60% fewer allergens.
Save 5–15% on energy bills (EPA & DOE).
Choose size, MERV, and quantity.
Subscribe for regular delivery.
Looking for reliable 24x36x1 HVAC and furnace air filters for your home? Filterbuy.com offers high-quality, American-made filters designed to protect your air and your system. Our filters are built with durable frames and advanced pleated media that capture dust, allergens, and other airborne particles, helping improve indoor air quality and maintain HVAC efficiency.
Each filter is custom-made to ensure a perfect fit and consistent performance. With multiple MERV rating options and fast, direct-to-door shipping, Filterbuy makes it easy to get the right filter when you need it—no more guesswork or last-minute store runs.
"We’ve seen how the right 24x36x1 filter can improve air quality, cut energy costs, and protect HVAC systems. That’s why we custom-make every filter in the USA—for performance you can trust."
At Filterbuy.com, we've seen how the right filter improves air quality, system performance, and overall comfort. Here's what the data—and our experience—shows:
EPA reports indoor air can be 2 to 5 times worse than outdoor air.
We’ve helped thousands of customers tackle this invisible problem.
Source: EPA – Indoor Air Quality
High-efficiency filters reduce allergens and airborne triggers.
Our customers often notice symptom relief within weeks.
Source: ACAAI – Allergy Management
Clean filters improve airflow and HVAC efficiency.
DOE recommends replacing filters every 60–90 days.
Our data shows this leads to fewer breakdowns and lower bills.
Source: Energy.gov – HVAC Maintenance
Choosing the right 24x36x1 HVAC or furnace filter does more than protect your system—it directly impacts your air quality, energy savings, and comfort.
Here’s what we’ve learned at Filterbuy.com:
High-quality filters reduce allergens and airborne pollutants.
Customers often report noticeable improvements in breathing and comfort.
Clean filters improve airflow and reduce strain on your HVAC system.
This means lower energy bills and fewer service calls.
Our made-to-order, American-made filters arrive fast and fit right.
No more hardware store runs or guesswork.
Why it matters: You’re not just buying a filter—you’re choosing cleaner air, healthier living, and long-term system protection.

Make sure your filter size is 24x36x1.
Check your current filter or HVAC unit.
MERV 8 – Basic dust/pollen.
MERV 11 – Better for pets and allergies.
Buy in bulk for savings.
Replace every 60–90 days.
Consider auto-delivery for convenience.
Click Add to Cart and check out.
Fast, made-to-order shipping from the USA.
Swap your old filter.
Enjoy cleaner air and better HVAC performance.
💬 Need help? Contact us—we’re here for you.
More expensive air filters often offer superior filtration efficiency and materials, but the best choice depends on your specific air quality needs, HVAC compatibility, and maintenance habits.
HEPA filters capture more particles than MERV filters (usually equivalent to MERV 17+), but they can overly restrict airflow in systems not designed for them, making MERV filters more practical for most home HVAC systems.
MERV 14 provides excellent filtration but can restrict airflow and strain HVAC systems not designed for it, so it’s usually too high for typical residential setups unless specifically compatible.
MERV 8 to MERV 13 is generally best for home use, balancing effective filtration with system efficiency and airflow.
MERV 11 is not too high for most residential systems and is a solid choice for capturing finer particles like pet dander and pollen without overly restricting airflow.
Clean rooms typically require a MERV rating of 17 or higher, often using HEPA filters that capture particles as small as 0.3 microns with high efficiency.
High MERV filters can reduce airflow, increase energy costs, and strain HVAC systems if they’re not designed to handle the higher resistance.
Use MERV 11 if you need better filtration for allergens or pets and your system supports it, but MERV 8 is usually sufficient for general residential needs.
MERV 8 is not too restrictive for most HVAC systems and strikes a good balance between airflow and particle filtration.
One major disadvantage of the highest MERV-rated filters is their high resistance to airflow, which can overwork HVAC systems and reduce efficiency if not properly matched.
MERV 8 filters should generally be changed every 1 to 3 months, depending on air quality, system usage, and environmental factors like pets or smoking.
MERV 8 filters can capture larger pet dander particles, but MERV 11 or higher is better for households with multiple pets or allergy concerns.