Discover the benefits of upgrading to Filterbuy
12x18x4 air filters for improved indoor air
quality, HVAC efficiency, and cost savings.
Elevate Your
Indoor Air
Quality with
Filterbuy
12x18x4
Filters
Introducing
Filterbuy 12x18x4
Air Filters
The Filterbuy 12x18x4 air filter is a smart
upgrade for your HVAC system, designed
to enhance indoor air quality and improve
energy efficiency. This electrostatically
charged pleated filter effectively traps up
to 98% of airborne particles, including dust,
pollen, and pet dander, without restricting
airflow.
Benefits of Filterbuy 12x18x4 Filters
Better Indoor Air Quality
Filters capture up to 98% of airborne
particles like dust, pollen, and pet dander for
cleaner, fresher air
Improved HVAC Efficiency
Reduces HVAC strain and energy waste,
leading to lower utility bills and fewer repairs
Health Benefits
Reduces allergy and respiratory issues by
blocking harmful particles, leading to less
need for medications
Cost-Effective
Long-lasting filters with less frequent
replacements provide savings over time
Easy Maintenance
Washable, reusable filters require less effort
compared to disposable options
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3
Supporting Statistics
Particle Reduction
Cost Savings
HVAC Efficiency
98%
50% of Home Energy Use
Fewer Repairs
Reduces particles by 98%
HVAC systems account for about 50%
of a home's energy use
Less system strain leads to fewer
repairs and lower bills
Best for homes with pets, allergies or
wildfire smoke
Poor airflow from disposable filters
leads to overuse
Improved airflow supports long-term
HVAC performance
AirNow.gov
rpsc.energy.gov
eere.energy.gov
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Steps to Upgrade Your HVAC
Set up the new filter easily
Turn off power, remove old filter, insert new filter,
replace cover, and turn power back on.
Replace every 60-90 days
More frequent replacements may be needed for
homes with pets or individuals with allergies.
Sign up for auto delivery
Get an extra discount on future filter deliveries.
Check your filter size
Confirm your system uses an air conditioner filter
12x18x4.
Select a MERV rated filter
Choose a filter that captures more dust, pollen, pet
dander, and other particles based on your needs.
Choose Filterbuy 12x18x4 air filter
Select MERV 8 for primarily dust concerns, MERV 11 for
pollen and dander sensitivity, or MERV 13 for smog,
smoke, and bacteria.
Buy from a trusted source
Order your high-quality 12x18x4 air filter from
Filterbuy.com.
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5
Why Choose Filterbuy?
Proudly Made in the USA
All our filters are manufactured in the USA using the
highest quality American made materials.
Extensive Filter
Selection
We offer a wide range of air filter
sizes, including hard to find
custom options.
Family-Owned and
Operated
We're a family owned company,
dedicated to providing clean air
for homes across America.
Fast and Free Shipping
Enjoy the convenience of fast
and free shipping directly to your
door.
Exceptional Customer Satisfaction
We are proud of our products, backed by over 85,000
5 star reviews from satisfied customers.
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6

https://filterbuy.com/air-filters/12x18x4/


https://filterbuy.com/air-filters/12x18x4/

A Healthier
Home Awaits
The Filterbuy 12x18x4 air filter changes the
way homeowners manage indoor air quality
and HVAC efficiency. This electrostatic
pleated air filter is designed to catch more
particles, including dust, pollen, and pet
dander, without restricting airflow. By
choosing this high-quality filter, you're
investing in a solution that enhances air
quality, supports HVAC efficiency, and
contributes to a healthier home.
Discover more at https://filterbuy.com/air-
filters/12x18x4/
Frequently Asked Questions
Washability
Electrostatic air filters are designed to
be rinsed with water, dried completely,
and reinstalled. Consistent cleaning
every 3–4 weeks, or more often in high-
use environments, is recommended.
Primary Function
The primary function of an electrostatic
air filter is to trap airborne contaminants
like dust, pollen, pet dander, and mold
using self-charging static media. This
helps improve indoor air quality and
protects your HVAC from dirt buildup.
Long Lifespan
High quality electrostatic filters can last
3–6 months, depending on home air
quality and usage. Washable models
can last even longer with regular
cleaning.
Effectiveness
Electrostatic air filters are highly
effective, especially for long-term
savings and improved air quality. The
upfront cost is higher, but they pay for
themselves over time through reduced
replacements, better filtration, and
lower HVAC strain.
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