Award-winning technology, proudly built with support from:
More than just an air filter.
Colorfil furnace air conditioning HVAC air filters capture dust and pollen like regular filters. Colorfil air filters also removes odors and chemicals in your air at a molecular level.
Colorfil HVAC Filter
Colorfil filters remove odors and chemicals from your air, and change color to yellow to let you know when to replace them. We are donating $1 for every Colorfil filter purchased to help animals in need.
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Our happy customers
Colorfil is the only filter that shows you when to change it.
How often should you change your air filter? Colorfil changes color from pink to yellow as it works, so you'll never worry about knowing when to change your filter again.
Get way more out of your air filter.
Colorfil air filters have significantly more capacity and efficiency for toxic and odor causing chemicals like amines than existing filters built to remove chemicals.
Your loved ones deserve clean air.
Colorfil air filters were originally built for astronauts with funding from NASA, NSF, and US Army to meet their rigorous demands. Now Colorfil brings clean air to your home and family, wherever you live.
+ What is your MERV rating?
Colorfil filters are MERV 7 equivalent, but they remove a lot more than just dust. Colorfil’s “chemisorptive” coating captures chemicals and odors at the molecular level, which regular filters cannot.
Higher MERV-rated filters generally restrict airflow more, while lower-rated filters such as glass-fiber products aren’t effective against dust or pollen. Our filters deliver a good balance for particulate filtration while also providing Colorfil’s unique chemical removal and color change. We recommend our filters to be used with furnaces that are rated up to MERV 11 or higher only, please consult with your furnace's operations manual or look up its model to ensure that our filters are compatible.
+ What does Colorfil remove?
Colorfil is a filter made with a coating that captures and neutralize chemicals and odors from the air. Designed by our engineers from the University of Illinois at Urbana-Champaign to remove toxic chemicals from spacecraft and space suits, Colorfil primarily targets amine compounds such as ammonia, pet, bathroom, and cooking odors, and fumes from household cleaners.
Our filters use Colorfil technology in combination with conventional air filter materials to deliver chemisorptive capability in addition to removing dust, pollen, mold and other small particles from your air. Colorfil also lets you know if it has done its job through a vibrant color change from pink (or purple) to yellow!
+ How does the color change work?
Colorfil's color changes in proportion to the amount of chemicals it has captured. As our chemisorptive coating neutralizes gas molecules from the air, Colorfil displays an intrinsic color change that acts as a signal for how much capacity remains for removal of more chemicals and odors.
While the color change indicates most of your filter’s capacity to absorb chemicals and odors has been consumed, a yellow Colorfil filter will still function effectively to remove particulates such as dust and pollen until its next “color change” turning grey from dust.
+ How long do Colorfil filters last?
Our filters generally last 1-4 months with typical use, though actual lifetime depends on air quality, time of year, HVAC use, and other factors such as pets in the home and use of certain chemical cleaners. Even in the same home, filter life may vary quite a bit throughout the year. With Colorfil’s color change you get to know exactly when your filter has expired, rather than relying on an arbitrary one-size-fits-all recommendation.
+ Is Colorfil safe?
The key active ingredient in Colorfil is non-toxic and naturally found in fruit! Unlike air fresheners, aerosols, candles, and incense, Colorfil captures odors and other gas molecules without adding any chemicals to the air.
We produce, handle, and use our filters daily and are confident in the safety of our product. However…we highly recommend that you do not eat Colorfil, rub it in your eyes, or use it as a bath towel 😉. You can view our full terms and disclaimers here.
Next generation air filters.
Who we donate to.
We are donating $1 of every Colorfil filter purchased, to the Champaign County Humane Society to help save lives. The donation goes to help animals in need of adoption, whether it's feeding them, sheltering them, or providing them with the necessary medical attention; see how they distribute their spending here.