At Design Filters, we use high-quality materials like pleated polyester and electrostatically charged fibers to ensure our filters provide superior air quality. Our filters are designed for durability and efficiency, helping to keep your home’s air clean and fresh with every use.

We offer 30-day no-hassle returns on all orders. If you're not completely satisfied with your purchase, simply return it within 30 days for a full refund. For shipping, we aim to deliver your order as quickly and efficiently as possible. If you have any questions or concerns, feel free to contact us, and we'll be happy to assist!

Replace Regularly: Pleated filters should be replaced every 1 to 3 months, depending on factors like household size, pets, and air quality. Follow manufacturer recommendations for specific timeframes.

Inspect Monthly: Even if the recommended replacement interval is longer, inspect the filter monthly for dust buildup. If it appears dirty or clogged, replace it sooner than the recommended time.

Do Not Wash: Pleated paper and polyester filters are not designed to be washed. Washing them can damage the pleats and reduce their effectiveness, so always replace them instead of attempting to clean.

Check Fit: Ensure the replacement filter fits snugly in your AC unit. A poor fit can allow air to bypass the filter, reducing its efficiency.

Handle Gently: When removing or installing the filter, avoid bending or crumpling the pleats to maintain their structure and filtering capability.

Avoid Exposure to Moisture: Keep the filter dry to prevent mold growth or damage to the pleats. Excess moisture can reduce its lifespan and effectiveness.