Air Filtration Upgrades: Understanding MERV and HEPA Filters

Indoor air quality (IAQ) has become a top priority for commercial building owners, facility managers, schools, healthcare facilities, and businesses across every industry. Employees, customers, and tenants expect clean, healthy indoor environments, and your HVAC system plays a critical role in delivering it.

One of the most effective ways to improve indoor air quality is through air filtration upgrades, particularly by upgrading to higher-efficiency MERV-rated filters or implementing HEPA filtration systems where appropriate.

At Level One HVAC, we help businesses throughout Michigan evaluate and implement air filtration solutions that improve indoor air quality while maintaining system performance and energy efficiency.

Why Indoor Air Filtration Matters

The air inside commercial buildings can contain a variety of airborne contaminants, including:

• Dust and dirt
• Pollen
• Mold spores
• Bacteria
• Smoke particles
• Pet dander
• Fine particulate matter
• Certain airborne viruses

Poor indoor air quality can contribute to:

• Employee discomfort
• Increased allergy symptoms
• Reduced productivity
• Unpleasant odors
• Equipment contamination
• Increased maintenance requirements

Upgrading your building’s air filtration system can help create a healthier, more comfortable environment for everyone inside.

What Is a MERV Rating?

MERV stands for Minimum Efficiency Reporting Value. The MERV rating system measures how effectively an air filter captures airborne particles.

The higher the MERV rating, the smaller the particles the filter can capture.

Common Commercial MERV Ratings

MERV 6-8

Best for:

• Basic commercial filtration
• Dust and lint control
• General office environments

Captures:

• Large dust particles
• Pollen
• Carpet fibers

MERV 9-12

Best for:

• Office buildings
• Retail facilities
• Schools
• Light industrial facilities

Captures:

• Fine dust
• Mold spores
• Pet dander
• Smaller airborne particles

MERV 13-16

Best for:

• Healthcare facilities
• Data centers
• High-occupancy buildings
• Buildings seeking improved indoor air quality

Captures:

• Bacteria
• Smoke particles
• Fine aerosols
• Smaller respiratory particles

MERV 13 filtration has become a popular upgrade because it offers a significant improvement in indoor air quality while remaining compatible with many commercial HVAC systems.

What Is a HEPA Filter?

HEPA stands for High-Efficiency Particulate Air.

HEPA filters are designed to remove at least 99.97% of airborne particles measuring 0.3 microns in size.

HEPA filtration is significantly more effective than standard commercial filters and is commonly used in environments that require exceptionally clean air.

Common Applications for HEPA Filtration

• Hospitals and healthcare facilities
• Laboratories
• Clean rooms
• Pharmaceutical facilities
• Certain manufacturing environments
• Specialty healthcare spaces

HEPA filters can capture:

• Fine dust
• Bacteria
• Mold spores
• Smoke particles
• Many airborne contaminants

MERV vs. HEPA: What’s the Difference?

Can Every HVAC System Use Higher-Rated Filters?

Not always.

One of the biggest misconceptions about air filtration is that simply installing the highest-rated filter automatically improves indoor air quality.

Higher-efficiency filters can create additional airflow resistance, known as static pressure. If your HVAC equipment isn’t designed to handle that added resistance, it can lead to:

• Reduced airflow
• Increased energy consumption
• Equipment strain
• Comfort issues
• Premature equipment wear

That’s why it’s important to evaluate your HVAC system before making filtration upgrades.

Signs Your Building May Benefit from an Air Filtration Upgrade

You may want to consider upgrading your air filtration system if you experience:

• Excessive dust buildup
• Frequent allergy complaints
• Poor indoor air quality concerns
• Odor issues
• Sensitive occupants
• Increased focus on employee wellness
• Higher cleanliness requirements
• Renovations or occupancy changes

An HVAC professional can help determine the best filtration solution for your building and equipment.

Additional Indoor Air Quality Solutions

Air filtration upgrades can often be paired with other indoor air quality improvements, including:

• Increased ventilation
• Humidity control
• UV-C air purification systems
• Building automation optimization
• Air quality monitoring systems
• Regular preventative maintenance

A comprehensive IAQ strategy often delivers the best long-term results.

Benefits of Air Filtration Upgrades

Investing in improved air filtration can provide several benefits:

Healthier Indoor Environments

Reduce airborne contaminants and improve occupant comfort.

Improved Employee Satisfaction

Clean indoor air contributes to a more comfortable workplace.

Better HVAC Performance

Proper filtration helps protect HVAC equipment from dust and debris accumulation.

Reduced Maintenance Costs

Cleaner equipment often operates more efficiently and experiences fewer issues.

Support for Sustainability Goals

Improved indoor air quality contributes to healthier, more productive buildings.

Partner with Level One HVAC for Indoor Air Quality Solutions

At Level One HVAC, we help commercial building owners and facility managers identify practical indoor air quality improvements that fit their building’s needs and HVAC system capabilities.

Whether you’re considering a MERV filter upgrade, evaluating HEPA filtration, or developing a comprehensive indoor air quality strategy, our team can help you improve building performance while protecting occupant comfort and equipment reliability.

Contact Level One HVAC today to learn more about our commercial indoor air quality solutions and air filtration upgrades throughout Michigan.

Level One HVAC Services, Inc.

Serving all of Michigan

Call: 844-616-4822