How Can I Reduce Spring Allergies Using HVAC Filters?
- Van Bremen's Heat & Air

- 9 hours ago
- 4 min read
AI Summary
Upgrading and maintaining HVAC filters can significantly reduce indoor allergens during spring.
Proper filtration captures pollen, dust, pet dander, and other airborne irritants.
Pennsylvania and West Virginia spring seasons bring high pollen counts that affect indoor air quality.
Van Bremen’s Heat & Air provides expert heating, cooling, and maintenance services to help improve indoor air quality year-round.

Spring brings warmer temperatures and blooming trees, but it also brings seasonal allergies. For many homeowners in Pennsylvania and West Virginia, rising pollen counts mean sneezing, congestion, itchy eyes, and reduced indoor comfort. While you cannot control outdoor allergens, you can reduce how much of them enter and circulate inside your home.
One of the most effective tools for improving indoor air quality is your HVAC filter. With the right filter and proper maintenance, your HVAC system can play a powerful role in minimizing spring allergy symptoms.
The Problem: Spring Allergens Circulate Indoors
During spring, trees, grasses, and weeds release pollen into the air. When windows open or doors are frequently used, these allergens enter your home. Once inside, they circulate through your HVAC system.
Common spring allergens include:
Tree pollen
Grass pollen
Weed pollen
Mold spores
Dust mites
Pet dander
Without proper filtration, these particles continue to circulate, triggering allergy symptoms and lowering indoor air quality.
The Solution: Use High-Quality HVAC Filters and Proper Maintenance
Your HVAC filter acts as the first line of defense against airborne allergens. Choosing the right filter and maintaining it properly can significantly reduce indoor allergen levels.
For homeowners focused on heating and cooling in Pennsylvania and West Virginia, optimizing filtration is especially important during peak allergy season.
Understand MERV Ratings
HVAC filters are rated using a MERV scale, which stands for Minimum Efficiency Reporting Value.
MERV ratings range from 1 to 16 for residential systems.
MERV 1 to 4 capture large particles like dust and lint
MERV 5 to 8 captures mold spores and pet dander
MERV 9 to 12 captures smaller particles such as pollen
MERV 13 and above capture very fine particles
For allergy relief, many professionals recommend filters rated between MERV 8 and MERV 13, depending on system compatibility.
Higher is not always better. Extremely high MERV filters can restrict airflow if your system is not designed for them.
Replace Filters More Frequently in Spring
During heavy pollen season, filters can clog faster than usual. A clogged filter reduces airflow and lowers efficiency.
Best practices include:
Checking filters monthly during the spring
Replace filters every 30 to 60 days if allergies are severe
Following manufacturer recommendations
Clean filters improve both air quality and system performance.
Keep Windows Closed During High Pollen Days
Even with a high-quality filter, reducing pollen entry is important.
Monitor local pollen forecasts and:
Keep windows closed on high pollen days
Use air conditioning instead of opening windows
Wipe shoes before entering the home
Limiting pollen entry reduces strain on your filtration system.
Upgrade to High-Efficiency Pleated Filters
Pleated filters have more surface area than flat fiberglass filters, allowing them to capture more particles without restricting airflow excessively.
Benefits include:
Better pollen capture
Improved dust control
Longer filter life
More consistent airflow
Upgrading from basic fiberglass filters is one of the easiest allergy improvements.
Consider Whole Home Air Purification
In addition to filters, some homeowners benefit from advanced indoor air quality solutions.
Options include:
Whole-home air purifiers
UV light systems
Media filter cabinets
Electronic air cleaners
These systems provide an added layer of allergen reduction beyond standard filters.
Maintain Your HVAC System Regularly
Regular maintenance ensures your system operates efficiently while maintaining proper airflow.
Spring maintenance typically includes:
Inspecting and cleaning coils
Checking blower operation
Testing airflow
Inspecting ductwork for leaks
Ensuring proper system balance
Professional heating, cooling, and maintenance services help keep filtration systems working effectively.
Seal Duct Leaks to Prevent Allergen Entry
Leaky ducts can pull dust and allergens from attics or crawlspaces into your home.
Duct sealing helps:
Prevent contamination
Improve airflow
Reduce allergen circulation
Increase system efficiency
This step is especially important in older homes.
Control Indoor Humidity
Spring moisture can contribute to mold growth and dust mite activity.
Keep indoor humidity between 30 and 50 percent to:
Reduce mold growth
Limit dust mites
Improve overall air quality
Proper humidity control supports allergy reduction.
Clean Return Vents and Registers
Dust accumulation around vents can reintroduce allergens into the air.
Regularly:
Vacuum return vents
Wipe supply registers
Keep furniture from blocking airflow
These small steps support cleaner indoor air.
Signs Your Filter Is Not Doing Its Job
If allergy symptoms persist indoors, your filter may need attention.
Watch for:
Increased dust buildup
Frequent sneezing indoors
Reduced airflow from vents
Visible dirt on filters
System running longer than usual
Addressing these signs early improves both comfort and efficiency.
People Also Ask
Do HVAC filters really help with allergies?
Yes. Properly rated filters capture airborne allergens and reduce indoor exposure.
What MERV rating is best for allergies?
MERV 8 to 13 is commonly recommended for residential allergy control.
How often should filters be replaced during allergy season?
Every 30 to 60 days, depending on conditions.
FAQ Section
Q: Can I use a HEPA filter in my HVAC system?
A: Most residential systems are not designed for true HEPA filters without modifications.
Q: Will better filters increase energy bills?
A: When properly matched to the system, high-quality filters maintain efficiency.
Q: Do pets make spring allergies worse indoors?
A: Yes. Pet dander combined with pollen increases allergen levels.
Q: Should I schedule HVAC service during allergy season?
A: Yes. Spring service ensures filters and airflow are optimized.
Breathe Easier This Spring
Reducing spring allergies starts with improving your indoor air quality. The right HVAC filter, regular replacement, and proper system maintenance can dramatically lower allergen levels inside your home.
Van Bremen’s Heat & Air proudly supports homeowners seeking reliable heating and cooling in Pennsylvania and West Virginia. Our expert heating, cooling, and maintenance services help improve indoor air quality and system efficiency year-round.
Call (814) 483-1735 or fill out the online form to schedule HVAC maintenance and learn how to reduce spring allergies in your home.




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