For years, homeowners and HVAC professionals have relied solely on a single furnace filter to protect indoor air. But new independent lab testing confirms that there’s a better way to clean the air we breathe - right at the source.
In a recent study conducted by Aerosol Research and Engineering Laboratories (ARE Labs) in compliance with FDA Good Laboratory Practices (21 CFR Part 58), the Impeccable Air Return Vent Filter was tested for its ability to reduce volatile organic compounds (VOCs) and airborne particulates within a simulated HVAC duct system.
The results? Impeccable Air’s filters showed measurable efficiency in capturing airborne particulates and reducing VOCs, helping homeowners achieve cleaner, healthier indoor air.
If You Wouldn’t Drink This In Your Water, Why Would You Breathe It In Your Air?
Watch this video to visualize just how much contamination can be captured and stopped from recirculating in the air that you breathe everyday:
https://www.instagram.com/p/DPFCgbCCZBr/?hl=en
The goal of the study was simple: To measure how effectively the Impeccable Air filtered return grille system could reduce VOCs (chemicals commonly emitted by cleaning agents, paints, and plastics) and capture airborne particulates of various sizes, from ultrafine dust to coarse debris.
These filters were tested as an add-on system for existing HVAC return grilles, using the home’s natural airflow to continuously clean and refresh indoor air.
ARE Labs performed two primary tests:
VOC Reduction
Tested chemicals: Formaldehyde and Limonene, two common household VOCs linked to irritation and long-term health risks.
Measurement: Monitored over 60 minutes using an FTIR gas analyzer.
Particulate Capture Efficiency
Tested particles: Arizona Road Dust, covering multiple particle sizes (<0.5 µm to 20 µm).
Measurement: Conducted with an Aerodynamic Particle Sizer.
Control trials were run simultaneously to account for natural decay.
VOC Reduction (net, above natural decay)
Formaldehyde: 22.13% reduction with the filter vs. 11.46% without (net 10.67% above natural decay).
Limonene: 38.97% reduction with the filter vs. 22.92% without (net 16.05% above natural decay).
These results demonstrate that Impeccable Air filters can measurably reduce VOC levels above what natural decay achieves alone.
Particulate Reduction
The filters achieved strong particle removal across all measured size ranges:
|
Particle Type |
Size Range |
Net Reduction |
CADR (CFM) |
|---|---|---|---|
|
Ultrafine |
<0.5 µm |
89.94% |
22.52 |
|
Fine |
0.5–0.8 µm |
91.00% |
23.97 |
|
Alveolar |
0.8–5 µm |
95.77% |
30.22 |
|
Coarse |
5–20 µm |
99.99% |
108.91 |
These findings confirm that Impeccable Air filtered return vents:
Capture airborne particulates before they circulate through the home.
Reduce furnace filter clogging and system strain.
Support cleaner, more efficient HVAC performance.
Reduce airborne particulates and adsorb common VOCs that affect indoor air quality.
The results from ARE Labs confirm what Impeccable Air customers already experience every day - cleaner air, fresher spaces, and more peace of mind.
By adding filtration at each return vent, we’re not replacing traditional HVAC filters — we’re enhancing the system to capture contaminants earlier and more efficiently, where airflow is slowest and filtration is most effective.
The Impeccable Air Return Grille Filter demonstrated measurable, lab-verified improvements in indoor air quality - achieving net particulate reductions of 89.9% (ultra-fine), 91.0% (fine), 95.8% (alveolar), and 99.99% (coarse) over a 60-minute chamber test, with measurable VOC reductions of 11–16% above natural decay.
This test validates Impeccable Air’s mission: to protect homes from the inside out by transforming every return vent into a distributed-filtration point.
Read the full published study that was completed here: Efficacy of the Impeccable Air Return Grille Filters in Reducing VOCs and Particulates
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