Air purifiers are air cleaning devices that capture microscopic pollutants and produce clean air quality, while HVAC filters remove larger particles to protect internal machinery and air ducts. Although both tools help filtrate airborne pollutants, air purifiers and HVAC filters have vastly different purposes and capture different sized particles.
Understanding the types of pollutants air purifiers and HVAC filters remove, their filtration efficiency rates, and optimal environments allows for comprehensive air quality protection.
What particles does an HVAC filter remove?
HVAC filters are key filtration components primarily built to prevent particulate matter and debris from entering HVAC wiring and machinery. As a byproduct, the filters also provide indoor filtration of airborne particles through airducts (1). However, the efficiency rate and types of particles captured can vary greatly between different HVAC systems and filters. Base tier HVAC filters typically remove larger sized pollutants that commonly reach air grates, such as:
- Dust
- Human hair
- Dirt
- Food particles
- Lint
HVAC filters are excellent filtration tools to ensure HVAC systems and air ducts run smoothly, but these filters often miss ultrafine particles. Harmful microscopic pollutants can be invisible to the naked eye and seep through standard filters, increasing exposure levels and impacting health risks, especially for sensitive or allergy-prone populations (2).
What particles does an air purifier remove?
Air purifiers are powerful air cleaning tools specifically designed to target microscopic pollutants and allergens, removing these particles through advanced, high-density filters. HyperHEPA air purifiers are built to filtrate the smallest of particles, capturing 99.5% of airborne pollutants 0.003 microns in size. These pollutants can impact health risks and breathing conditions, ranging in various particle type and size, such as:
- Pollen
- Ultrafine particles
- Bacteria
- Viruses
- Smoke
-
Pet hair and dander
-
PM2.5, particulate matter down to 2.5 microns in diameter
-
PM10, particulate matter down to 10 microns in diameter
Air purifiers with advanced, multilayered filtration systems, such as activated carbon pre-filters, can reduce gaseous emissions, odors, and volatile organic compounds (VOCs) for full for full coverage pollutant control. By eliminating airborne pollutants, air purifiers minimize exposure to airborne pollutants, leading to reduced asthmatic symptoms, allergy flare-ups, and respiratory risks.
What’s the difference between an air purifier and an HVAC filter?
The core differences between air purifier and HVAC filters are the primary purposes for each device, the various pollutants they capture, and particle removal efficiency rates.
HVAC filters are designed to filtrate and capture larger airborne pollutants to prevent malfunctions within the internal HVAC system. HVAC filters have no standardized efficiency rates, leading to gaps in pollutant protection and elevated health risks. Compared to air purifiers, HVAC filters alone capture lower amounts of airborne pollutants.
Air purifiers are specifically built to be air cleaning devices and address harmful microscopic particles that could be lingering indoors. HyperHEPA filters are lab-tested and science-backed to ensure maximum efficiency, capturing 99.5% of particles as small as 0.003 microns. With additional pre-filters and optional odor and gas filtration, air purifiers can remove an expansive number of pollutants compared to HVAC filters, creating a safe indoor breathing environment.
Do you need both an air purifier and an HVAC filter?
Yes. Air purifiers and HVAC filters provide vastly different protection purposes and should be utilized together for maximum filtration efficiency. HVAC filters are essential to keep internal HVAC machinery running smoothly and maintain whole-house filtration, while air purifiers provide targeted pollutant removal and air quality control. Comprehensively clean air quality depends on multilayered filtration systems and effective air cleaning technology.
To achieve maximized pollutant protection, additional filtration technology can be installed within HVAC systems for a full coverage air quality solution. Some air cleaning devices, such as the PerfectPro Whole House Air Purifier, can connect seamlessly to existing airducts and in-house ventilation to provide ultrafine particle filtration in every room.
Clean air methods alongside filtration
Air purifiers and HVAC systems provide essential filtration for indoor spaces to achieve clean indoor air quality, though routine cleaning and daily practices can stop pollutant exposure at its source.
Safe breathing conditions can be easily maintained and secured throughout all enclosed rooms with added ventilation methods and air quality awareness, such as:
-
Air quality awareness: Install an air quality monitor to plan daily schedules, close windows during air quality events, and utilize multiple air cleaning devices for comprehensive protection.
-
Active ventilation: Open windows during food preparation, utilize fans to increase air circulation, and employ long HVAC system runtimes during high-pollutant seasons.
- Pollutant source control: Avoid scented chemical cleaning sprays, routinely disinfect surfaces to prevent pollutant particles from spreading, and employ HyperHEPA air purifiers for ultrafine particle removal
Advanced filtration in conjunction with daily clean air methods help ensure the maximum number of harmful particles are eliminated and health risks are minimized, creating a pollutant-free breathing environment.
Frequently Asked Questions (FAQs)
How often should I change an air purifier filter?
Air purifier filters should be changed routinely every 6 months to 4 years depending on environment conditions and daily utilization. Check air purifier or filter packaging for suggested lifespans and routinely examine active filters for build-up or blockages.
How often should I change an HVAC filter?
HVAC filters should be replaced every 2 to 3 months depending on filter density and environment conditions. Check manufacturer guides for suggested lifespans and routinely examine active filters for build-up or blockages.
Can I install multiple HVAC filters?
Yes, multiple filters and air cleaners can be installed into HVAC systems with pre-existing filters. However, multiple filters should never be stacked on top of each other, as it could cause restrictive airflow and improper circulation.
For safe, multilayered HVAC filtration, utilize whole house air purifiers to ensure clean air quality while maintaining proper airflow. The PerfectPro whole house air purifier seamlessly attaches to pre-existing HVAC systems and provides ultrafine particle control that trap pollutants standard filters can’t capture, such as smoke, bacteria, and viruses. smoke, bacteria, and viruses.
Do HVAC filters remove gas or odors?
No, HVAC filters are designed to block large particle debris from internal machinery and do not specifically remove gases or odors. If an HVAC filter is employed alone, gaseous emissions and odors could still invade indoor air spaces.
Air purifiers with activated carbon filtration are key to capturing indoor gases and odors. The carbon filter’s unique porous structure allows for gaseous emissions and indoor odors to get trapped and filtrated, providing clean air quality from invisible pollutants.
The takeaway
Air purifiers are specifically designed to improve indoor air quality, defending against ultrafine pollutants and targeting harmful viruses, while HVAC filters filtrate larger particles to protect internal machinery. Whole house air purifiers and HVAC filter attachments provide key air quality protection against the particles missed by HVAC filters alone.
Dual utilization of air purification devices and HVAC filters can lead to pathways for healthy, comfortable breathing throughout any household.
