16x20x1 Air Filter MERV 11 Allergen Defense (4-Pack)

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At Filterbuy, we are proud to be a one-stop shop for all your air conditioner, furnace, or HVAC system filter replacements. Our goal is to provide you, your family, and your community with access to clean indoor air, allowing you to live and breathe freely. That's why we offer hundreds of custom sizes with various filtration ratings, ensuring the perfect fit for your specific needs.

What sets our products apart? Our filters feature premium enhancements, including a pleated, electrostatic design that captures more particles and a reinforced beverage board frame capable of withstanding extreme temperatures.

So, what problem are we solving? We simplify the process of purchasing the exact filter size you need. With our robust supply chain, we can quickly deliver these custom sizes to your doorstep at no extra cost.

Why do we love what we do? We take pride in providing a service that keeps our community healthy.

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Measurement System Minimum Efficiency Reporting Value (MERV) This rates the ability of filters to trap particles on a scale of 1-20, with 20 being the smallest microns captured.

Standard Protection (90%) MERV 8 Air Filters Ideal for any home or business looking for great indoor air quality at a reasonable rate.

Superior Protection (95%) MERV 11 Air Filters Perfect for homes or businesses dealing with pets, smokers, and allergies.

Optimal Protection (98%) MERV 13 Air Filters Ideal for larger homes or businesses that want the best possible filtration experience.

Odor Eliminator (90%) MERV 8 Air Filters with Activated Carbon Great for inhibiting unpleasant smells while providing reliable MERV 8 quality.

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What is a MERV Rating? MERV 8 MERV 11 MERV 13 Odor Eliminator

Replacement Air Filter 16x20x1 (Actual Size: 15.50 x 19.50 x 0.75 Inches) - 16x20x1 MERV 8 Add to Cart - 16x20x1 MERV 11 Add to Cart - 16x20x1 MERV 13 Add to Cart - 16x20x1 MERV 8 + Carbon Add to Cart - 16x25x1 MERV 8 (Popular) Add to Cart - 20x20x1 MERV 8 (Popular) Add to Cart - 20x25x1 MERV 8 (Popular) Add to Cart

Customer Reviews - 4.7 out of 5 stars 8,570 - 4.7 out of 5 stars 792 - 4.7 out of 5 stars 719 - 4.4 out of 5 stars 148 - 4.7 out of 5 stars 12,457 - 4.7 out of 5 stars 13,842 - 4.7 out of 5 stars 8,412

Price - $32.12 - $39.23 - $47.88 - $64.60 - $33.57 - $32.74 - $37.09

Recommended Use - Standard Filtration (4-Pack) - Superior Filtration (4-Pack - Optimal Filtration (4-Pack - Odor Elimination (4-Pack - Standard Filtration (4-Pack) - Standard Filtration (4-Pack) - Standard Filtration (4-Pack)

Best For - Healthy Families & Basic Needs - Allergy Sufferers & Pet Owners - Large Rooms & Medical Settings - Household Odors & Basic Needs - Healthy Families & Basic Needs - Healthy Families & Basic Needs - Healthy Families & Basic Needs

Filtration Effectiveness - 90% Airborne Particles - 95% Airborne Particles - 98% Airborne Particles - 90% Airborne Particles - 90% Airborne Particles - 90% Airborne Particles - 90% Airborne Particles

Comparable Ratings - MPR 600 & FPR 5 - MPR 1000 - 1200 & FPR 7 - MPR 1500 - 1900 & FPR 10 - MPR 600 & FPR 5 - MPR 600 & FPR 5 - MPR 600 & FPR 5 - MPR 600 & FPR 5

Pleat Count - 8 - 14 Pleats/Foot - 8 - 14 Pleats/Foot - 12 - 16 Pleats/Foot - 12 - 16 Pleats/Foot - 8 - 14 Pleats/Foot - 8 - 14 Pleats/Foot - 8 - 14 Pleats/Foot

Particle Size - 3 - 10 Microns (µm) - 1 - 3 Microns (µm) - 0.3 - 1 Microns (µm) - 3 - 10 Microns (µm) - 3 - 10 Microns (µm) - 3 - 10 Microns (µm) - 3 - 10 Microns (µm)

Dust & Debris - ✔ - ✔ - ✔ - ✔ - ✔ - ✔ - ✔

Mold & Pollen - ✔ - ✔ - ✔ - ✔ - ✔ - ✔ - ✔

Lint & Dander - ✔ - ✔ - ✔ - ✔ - ✔ - ✔ - ✔

Smog & Smoke - ✘ - ✔ - ✔ - ✔ - ✘ - ✘ - ✘

Bacteria - ✘ - ✘ - ✔ - ✘ - ✘ - ✘ - ✘

Odors - ✘ - ✘ - ✘ - ✔ - ✘ - ✘ - ✘

Choosing the Correct Filter Size

Nominal Size vs. Actual Size The nominal size is a rounded whole or half-inch measurement shown in a larger font (ex: 16 x 20 x 1). The actual size is the exact measurement in a smaller font (ex: 15.50 x 19.50 x 0.75). All filters have both.

Measuring Your Air Filter If your current filter doesn't have dimensions listed on the frame, use a tape measure to measure the width x length x depth to find the actual size. Round these measurements up to the nearest inch to find the corresponding nominal size for easier online searching.

Why should I change my air filter? To maintain a healthy lifestyle, as breathing dirty air can lead to asthma, allergies, and respiratory ailments. Old filters can also cause system defects, resulting in unnecessary expenses for energy costs and repairs.

When should I change my air filter? We recommend replacing your filter every 90 days to keep your system efficient and air clean. However, this may vary based on filter size and factors such as pets, allergies, and children.

Will these air filters fit my system? Most of our filters are universally compatible with furnaces, air conditioners, heat pumps, and HVAC systems, as long as you choose the proper size. If you see a specific brand name on a listing, ensure it matches your unit model.

How many air filters do I need? This depends on your specific needs, including the number of vents in your home. Our selection offers package quantities ranging from 1 to 12 filters, so we have options to suit every situation.

How do I change my air filter? After finding the correct size,

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