Frequently Asked Questions
Everything you need to know about keeping your home's air and water pure.
How often should I replace my furnace air filter?
For optimal air quality and HVAC efficiency, we recommend replacing your standard 1-inch to 3-inch filters every 90 days. However, if you have pets or allergies, every 60 days is ideal.
What is the difference between MERV ratings?
MERV stands for Minimum Efficiency Reporting Value. A higher MERV rating (like MERV 11 or 13) captures smaller particles such as bacteria and smoke, while a lower rating (MERV 8) is sufficient for dust and lint.
Do you offer free shipping on filter orders?
Yes, PureFilters offers free shipping on all orders over $75 across Canada and the United States. Orders are typically processed and shipped within 24-48 hours.
What is your return policy if I order the wrong size?
We offer a 30-day hassle-free return policy. If you ordered the wrong size, simply contact our support team to initiate a return or exchange for the correct dimensions.
Are these filters manufactured by the original brands (OEM)?
We carry both Original Equipment Manufacturer (OEM) filters and high-quality aftermarket alternatives that are designed to meet or exceed the performance of the original brand at a lower cost.
Can I set up a recurring subscription for my filters?
Absolutely. You can choose our 'Subscribe & Save' option on any product page to have your filters delivered automatically at your preferred interval, saving you 10% on every order.