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 2-inch filters every 90 days. If you have pets or suffer from allergies, you may want to change them every 60 days.
Do you offer free shipping on filter orders?
Yes, PureFilters© offers free shipping on all orders over $75 across the country. Standard shipping typically takes 3-5 business days to arrive at your doorstep.
What is your return policy if I order the wrong size?
We offer a 30-day hassle-free return policy. If you accidentally ordered the wrong dimensions, simply contact our support team to initiate a return or exchange for the correct size.
Are your filters compatible with major HVAC brands?
Absolutely. Our filters are designed to be compatible with all major brands including Honeywell, Lennox, Carrier, Rheem, and more. Just ensure the nominal dimensions match your current filter.
How can I find the exact size of the filter I need?
The easiest way is to check the side of your current filter for the printed dimensions. If no size is listed, measure the length, width, and depth of the filter slot in your intake or furnace.
Do you offer a subscription service for automatic deliveries?
Yes, you can choose our 'Subscribe & Save' option at checkout to have your filters delivered automatically every 3, 6, or 12 months, ensuring you never forget a filter change again.