11-11/16 in x 35-11/16 in x 13/16 in (29.6 cm x 90.6 cm x 2.0 cm). Helps promote a healthy home by reducing airborne dust, allergens, bacteria & viruses. Microparticle Performance Rating Filtration Level (The Filtration Level chart on the front panel is a Filtrete rating system that compares relative particle capture performance for several important categories of airborne particles that may pass through your filter): 1000. Dust & lint. Pollen & pet dander. Airflow Guaranteed: Change your filter every 3 months to maintain system performance. Lasts up to 3 months. Allergen Defense: As you manage your allergies on a day to day basis, you're looking for options that can help reduce allergens in your air. Filtrete Allergen Defense air filters turn your central heating & cooling system into a whole house air cleaner. With electrostatic technology, these filters help reduce airborne allergens. For maximum performance, change your filter every 90 days. Finding the Filter that Fits Your Life: Allergen Defense: Protects your HVAC system from household dust + lint + dust mite debris + mold spores + pollen + pet dander. All of these Filtrete filters are electrostatically charged to attract and capture microscopic airborne particles. Holmes approved products. The most important systems in your home are the ones you don't see. That includes the systems that control the air your family breathes. Filtrete Brand air filters by 3M are engineered to improve the quality of the air inside your home. I trust Filtrete filters to help clean the air on my jobsite and in my home. You can trust them to do the same for you. Accept no substitute. - Mike Holmes, America's Most Trusted Contractor. When to Change Your Filter: Change your filter every three months. Certain conditions in your home will significantly add particles to the air, and potentially reduce the life of the filter. These conditions include construction work, pets and tobacco smoke. Helpful Filter Change Reminders: Peel off sticker and use as reminder. Or scan this QR Code with your Smartphone or visit for a filter change reminder! For more information and helpful tips please visit us at Questions? For more Information about using this filter, visit our website at or call 1-800-388-3458 from the United States or Canada. Limited Warranty: This 3M product will be free from defects in material and manufacture. If this 3M product is defective, your exclusive remedy shall be, at 3M's option, replacement of the 3M product or refund of the purchase price of the 3M product. This warranty gives you specific legal rights, and you may have other rights which may vary from state to state, or country to country. To obtain warranty service, contact 3M at the address listed on the product package. Limitation of Liability: 3M will not be liable for any loss or damage arising from this 3M product whether direct, indirect, special, incidental or consequential. Some states and countries do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. Certified asthma & allergy friendly. Meets ASP-08-03 standard for HVAC furnace filters. ETL classified. Intertek. Conforms to UL STD 900. Certified to ULC STD S111. MERV: 11. 0.3-1.0 (micro m) PSE 41%. 1.0-3.0 (micro m) PSE 77%. 3.0-10 (micro m) PSE 88%. Airflow Rate (CFM): 445 Initial Resistance (IWC): 0.10. Airflow Rate (CFM): 665 Initial Resistance (IWC): 0.16. Airflow Rate (CFM): 885 Initial Resistance (IWC): 0.23. Airflow Rate (CFM): 1105 Initial Resistance (IWC): 0.33. Airflow Rate (CFM): 1500 (Max rated airflow) Initial Resistance (IWC): 0.50. Made in Mexico.