Frequently Asked Questions
Everything you need to know about keeping your home's air and water clean.
How often should I replace my furnace or AC filter?
For optimal air quality and HVAC efficiency, we recommend replacing your filters every 3 months. However, if you have pets or allergies, changing them every 30 to 60 days is ideal.
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.
What if I order the wrong size filter?
No problem at all. We offer a 30-day hassle-free return policy. Simply contact our support team, and we will help you find the correct size and process your exchange.
Are your filters manufactured in North America?
Yes, we take pride in sourcing our products from high-quality North American manufacturers to ensure they meet strict performance and safety standards.
What is the difference between MERV ratings?
MERV ratings indicate a filter's ability to capture particles. MERV 8 is standard for dust and lint, MERV 11 is great for pet dander and pollen, and MERV 13 is recommended for capturing bacteria and smoke particles.
Can I set up a subscription for recurring deliveries?
Absolutely. You can choose our 'Subscribe & Save' option on any product page to receive automatic deliveries at your preferred frequency and save 10% on every order.