Dust Eater™
A Dust Eater™ permanent furnace filter is a cost-efficient way to freshen the air around your entire home without ever having to buy another throw-away filter.
Remove pollutants such as dust, pollen and pet hairs, keep your heating system coils cleaner, and save up to 15% on your energy bills.
Pull ring design enables easy removal for quick cleaning. Clean your filter every 1 to 2 months and it will perform as good as new.
Backed by a Lifetime warranty! Order now:
| Part# | Nominal** | Actual | PreFilter Size* |
| 4028 | 14 x 25 | 13 5/8 x 24 5/8 | 13 x 24 |
| 4004 | 16 x 25 | 15 5/8 x 24 5/8 | 15 x 24 |
| 4010 | 20 x 25 | 19 5/8 x 24 5/8 | 19 x 24 |
| 4016 | 16 x 20 | 15 5/8 x 19 5/8 | 15 x 19 |
| 4022 | 20 x 20 | 19 5/8 x 19 5/8 | 19 x 19 |
*prefilter sizes are 5/8 smaller (on both dimensions) than the finished filter size.
**Nominal Size is the advertised / order size All filters are 7/8″ or 22.2mm thick
Guardian
A Guardian permanent furnace filter is a cost-efficient way to freshen the air around your entire home without ever having to buy another throw-away filter.
Remove pollutants such as dust, pollen and pet hairs, keep your heating system coils cleaner, and save up to 15% on your energy bills.
Pull ring design enables easy removal for quick cleaning. Clean your filter every 1 to 2 months and it will perform as good as new.
Backed by a Lifetime warranty! Order now:
| Part# | Nominal** | Actual | PreFilter Size* |
| 4030 | 14 x 25 | 13 5/8 x 24 5/8 | 13 x 24 |
| 4006 | 16 x 25 | 15 5/8 x 24 5/8 | 15 x 24 |
| 4012 | 20 x 25 | 19 5/8 x 24 5/8 | 19 x 24 |
| 4034 | 14 x 20 | 13 5/8 x 19 5/8 | 13 x 19 |
| 4018 | 16 x 20 | 15 5/8 x 19 5/8 | 15 x 19 |
| 4024 | 20 x 20 | 19 5/8 x 19 5/8 | 19 x 19 |
| 4036 | 14 x 24 | 13 5/8 x 23 5/8 | 13 x 23 |
| 4038 | 14 x 30 | 13 5/8 x 29 5/8 | 13 x 29 |
| 4040 | 20 x 30 | 19 5/8 x 29 5/8 | 19 x 29 |
*prefilter sizes are 5/8 smaller (on both dimensions) than the finished filter size.
**Nominal Size is the advertised / order size All filters are 7/8″ or 22.2mm thick
Our filters are available through Furnace and heating resellers. Check our Resellers Page to find a location near you!
Q. Have your filters been scientifically tested?
Yes. Our filters have been tested used the ASHRAE Standard 52.2 method, the industry standard for measuring air filter efficiency. They achieve 93% arrestance efficiency.
Q. What is the MERV (minimum efficiency reporting value) rating?
Our residential filters are rated MERV 7 – an ideal balance of filtration and airflow for most home HVAC systems.
Q. Will your filters help reduce the dust in my home?
Yes. Our filters are designed to capture fine airborne dust particles that would otherwise settle on furniture and surfaces. Many customers notice significantly less dust buildup in their homes after switching to our filters
Q. Will your filters improve indoor quality and health?
Cleaner air reduces the allergens and pollutants you and your family breathe in, helping ease allergies and supporting a stronger immune system. This can mean fewer colds, flus, and allergy flare ups.
Q. Can using your filters lower my energy bills?
Yes. By keeping your furnace and AC coils clean, our filters help your HVAC system run more efficiently – potentially saving up to 15% on energy costs.
Q. Will the filters capture pet hair and dander?
Yes. Our filters are highly effective at capturing both pet hair and airborne dander, which can linger in the air before settling on surfaces. This helps reduce allergens and keep your home cleaner and more comfortable for pet owners.
Q. Do your filters produce any ozone?
No. Our filters are completely ozone-free, unlike some electronic air cleaners that generate ozone as a byproduct of high-voltage operation.
Q. How do your filters compare to electronic air cleaners?
Our filters provide similar air cleaning performance to many full-size electronic air cleaners – but without the high cost, ongoing maintenance, or ozone emissions. Plus, they’re simple to install and easy to clean.
Q. How long will my Dust EaterTM / GuardianTM filter last?
A lifetime – with proper care! Our filters come with a lifetime warranty and 60-day money back guarantee. If it ever gets damaged, we can repair it for a small fee.
Q. Does the filter work if my furnace fan is off?
No. Air needs to move through the filter to be cleaned. Most furnaces circulate air when not heating. For best results, use the “fan on” or “circulate setting year-round.
Q. How do I install the filter?
Installation is easy – just replace your existing disposable filter with the same size Dust EaterTM / GuardianTM. Our filters are designed to fit standard 1” rectangular filter slots commonly found in residential HVAC systems. When installing, make sure the airflow arrow on the frame is pointing in the correct direction, matching the airflow on your HVAC system. If you’re unsure of your size, just the check the dimensions on your current filter.
Q. How do I clean my filter?
Cleaning your Dust EaterTM / GuardianTM filter is simple!
Step 1: Remove the filter using the easy pull tab.
Method 1 – Vacuum Cleaning: Use a vacuum cleaner to clean the filter. Gently vacuum in the opposite direction of the airflow arrow (darker blue side) to avoid pushing debris further into the filter
Method 2 – Rinse with Water: Using a garden hose or detachable shower head, gently spray the filter from the back side (light blue side), which is opposite the airflow direction. You can use a mild multipurpose cleaner if needed. Once clean, simply reinstall the filter – your HVAC system will dry it in place.
Q. How many disposable air filters does one Dust EaterTM / GuardianTM filter replace
Just one Dust EaterTM / GuardianTM can take the place of countless disposable filters. Built to last and easy to clean, it’s a long-term solution that keeps filters out of the landfill and saves you from constantly buying replacements.
Q. Where are your filters made?
Dust EaterTM / GuardianTM filters are proudly made by a Canadian -owned company. We’re based in Canada and committed to delivering high-quality, sustainable air filtration solutions for Canadian homes.