How to Clean Eufy 11s Filter

Cleaning the Eufy 11s filter is essential for maintaining suction power and air quality. This guide walks you through the entire process—from locating the filter to reassembling your vacuum—with easy-to-follow steps and expert tips.

Key Takeaways

• Regular cleaning prevents clogs: Cleaning the filter every 2–4 weeks ensures optimal performance and prevents dust buildup that can damage the motor.
• Use only water—no soap or cleaners: The Eufy 11s filter is washable but should never be cleaned with detergents, which can degrade the material.
• Air-dry completely before reinserting: A damp filter can cause mold or reduce suction; always let it dry for at least 24 hours.
• Check for wear and replace when needed: Over time, filters lose efficiency; replace yours every 3–6 months depending on usage.
• Clean the dustbin and brush roller too: For best results, clean all components during filter maintenance to keep your Eufy 11s in top shape.
• Store spare filters properly: Keep extra filters in a dry, sealed bag to avoid dust contamination before use.
• Follow the manual for safety: Always power off and unplug your vacuum before cleaning to avoid accidents.

How to Clean Eufy 11s Filter: A Complete Step-by-Step Guide

Keeping your Eufy RoboVac 11s in peak condition doesn’t require a degree in engineering—just a little regular maintenance. One of the most important tasks? Cleaning the filter. Over time, dust, hair, and debris clog the filter, reducing suction power and making your robot work harder than it should. A dirty filter can even shorten the lifespan of your vacuum.

In this guide, we’ll walk you through exactly how to clean the Eufy 11s filter—safely, effectively, and without damaging your device. Whether you’re a first-time owner or just need a refresher, you’ll learn everything from locating the filter to troubleshooting common issues. By the end, your Eufy 11s will be running like new, and you’ll know exactly how to keep it that way.

Let’s get started.

Why Cleaning the Eufy 11s Filter Matters

Before diving into the how-to, it’s worth understanding why this small component plays such a big role. The filter in your Eufy 11s is designed to trap fine particles—like dust, pollen, and pet dander—before they escape back into your home. Without a clean filter, these particles can recirculate, reducing indoor air quality and aggravating allergies.

More importantly, a clogged filter forces the vacuum’s motor to work harder. This not only drains the battery faster but can also lead to overheating and premature wear. In extreme cases, a severely blocked filter may cause the vacuum to shut down mid-cleaning or fail to start at all.

Regular cleaning—every 2 to 4 weeks, depending on usage—keeps your Eufy 11s running efficiently. If you have pets, live in a dusty environment, or vacuum daily, you may need to clean the filter more often. Think of it like changing the oil in your car: a small effort that prevents major problems down the road.

What You’ll Need

The good news? You don’t need special tools or cleaning products to clean the Eufy 11s filter. Here’s a quick checklist of what to gather:

• A soft brush (like an old toothbrush)
• Clean, lukewarm water
• A dry, lint-free cloth or paper towels
• A well-ventilated area for drying
• Optional: A replacement filter (if yours is worn out)

Avoid using soap, detergent, or any cleaning chemicals. These can break down the filter’s material and reduce its effectiveness. Stick to water only.

Step 1: Power Off and Prepare Your Workspace

Safety first. Before you begin, make sure your Eufy 11s is turned off and unplugged from the charging dock. Even though it’s a battery-powered device, it’s best to ensure no power is flowing during maintenance.

Next, find a clean, flat surface to work on—like a kitchen counter or table. Lay down a towel to protect the surface and catch any loose dust or debris. This also gives you a designated space to place the removed parts.

Tip: Work Near a Sink

If possible, clean the filter near a sink for easy access to water and drainage. This makes rinsing and drying more convenient.

Step 2: Remove the Dustbin

The filter is housed inside the dustbin, so the first step is to remove it. Here’s how:

• Flip your Eufy 11s upside down so the bottom is facing up.
• Locate the dustbin—it’s the rectangular compartment on the front of the vacuum.
• Press the release button (usually on the side or top of the dustbin) and gently pull it out.

Once removed, set the dustbin on your towel. You’ll notice it’s likely filled with dust, hair, and debris—especially if it’s been a while since your last cleaning.

Empty the Dustbin

Before removing the filter, empty the dustbin completely. Hold it over a trash can and tap it gently to dislodge any stuck particles. Use a dry cloth or brush to wipe out the interior if needed.

Step 3: Remove the Filter

Now it’s time to access the filter. The Eufy 11s uses a washable foam filter that sits inside the dustbin.

• Open the dustbin lid by pressing the latch or sliding the cover.
• Look for the filter—it’s a rectangular piece of soft, spongy material with a slight curve.
• Gently pull the filter out by its edges. Avoid squeezing or tearing it.

If the filter is caked with dust, don’t force it. Use a soft brush to loosen debris before pulling it out.

Check for Damage

While removing the filter, inspect it for signs of wear:

• Frayed edges
• Holes or tears
• Discoloration (beyond normal dirt)

If you notice any of these, it’s time to replace the filter. Continuing to use a damaged filter reduces suction and can let dust bypass the filtration system.

Step 4: Clean the Filter

Now comes the main event: cleaning the filter. Remember, this is a delicate process—treat the filter gently to avoid damage.

Rinse Under Lukewarm Water

Hold the filter under a gentle stream of lukewarm water. Do not use hot water, as it can warp the material. Let the water flow through the filter from the clean side (the side that faces outward) to the dirty side. This helps push out trapped particles.

Gently Agitate with a Soft Brush

If the filter is particularly dirty, use a soft-bristled brush (like an old toothbrush) to gently scrub the surface. Focus on areas with heavy buildup, but avoid scrubbing too hard—this can tear the foam.

Rinse Until Water Runs Clear

Continue rinsing until the water draining from the filter is clear. This may take a minute or two, depending on how dirty it was. Don’t rush this step—thorough cleaning ensures better performance.

Do Not Use Soap or Detergent

Again, avoid using any cleaning agents. Soap residues can clog the pores of the filter and reduce airflow. Water alone is sufficient.

Step 5: Dry the Filter Completely

This step is crucial. A damp filter can lead to mold growth, unpleasant odors, and reduced suction power.

Shake Off Excess Water

After rinsing, gently shake the filter to remove as much water as possible. Avoid wringing or twisting it, as this can damage the structure.

Pat Dry with a Clean Cloth

Use a dry, lint-free cloth or paper towels to pat the filter dry. Focus on the surface, but don’t press too hard.

Air-Dry in a Well-Ventilated Area

Place the filter on a clean towel in a dry, well-ventilated area. Avoid direct sunlight or heat sources like radiators, which can warp the material. Let it air-dry for at least 24 hours.

Never Reinstall a Damp Filter

Even if the filter feels slightly damp, wait until it’s completely dry. Installing a wet filter can cause long-term damage and void your warranty.

Step 6: Clean the Dustbin and Other Components

While the filter dries, take the opportunity to clean the rest of the dustbin and related parts.

Wipe the Dustbin Interior

Use a damp cloth to wipe down the inside of the dustbin. Remove any stuck-on debris or dust. Rinse with water if needed, then dry thoroughly.

Clean the Brush Roller

Flip the vacuum back over and remove the brush roller (also called the main brush). Use scissors or a cleaning tool to cut away hair and string wrapped around it. Wipe it down with a damp cloth.

Check the Side Brushes

Inspect the small side brushes on the front corners. Remove any hair or debris wrapped around the base. These help guide dirt toward the main brush, so keeping them clean improves navigation.

Inspect the Sensors and Wheels

Wipe the cliff sensors (small lenses on the bottom) with a dry cloth to ensure they’re not blocked. Also, check the wheels for debris that might affect movement.

Step 7: Reassemble the Eufy 11s

Once everything is clean and dry, it’s time to put your vacuum back together.

Reinsert the Filter

Place the dry filter back into the dustbin, making sure it sits flat and secure. The curved side should face outward, matching the shape of the compartment.

Close the Dustbin Lid

Snap the lid back into place, ensuring it’s fully closed and locked.

Reinstall the Dustbin

Slide the dustbin back into the vacuum until it clicks into place. Make sure it’s seated properly—if it’s loose, the vacuum may not run or could leak dust.

Reattach the Brush Roller and Side Brushes

Secure the main brush and side brushes back into their slots. Double-check that they spin freely.

Step 8: Test Your Eufy 11s

Before resuming regular use, give your vacuum a quick test.

• Place it on the charging dock and ensure it powers on.
• Run a short cleaning cycle on a small area.
• Listen for normal suction and check that it picks up debris effectively.

If the suction feels weak or the vacuum makes unusual noises, double-check that the filter is properly seated and completely dry.

How Often Should You Clean the Filter?

The frequency depends on your usage:

• Light use (1–2 times per week): Clean every 4 weeks.
• Moderate use (3–4 times per week): Clean every 2–3 weeks.
• Heavy use (daily, pets, allergies): Clean every 1–2 weeks.

Pay attention to performance. If you notice reduced suction or longer cleaning times, it’s a sign the filter needs cleaning—even if it hasn’t been the full recommended interval.

Troubleshooting Common Issues

Even with proper care, you might run into a few hiccups. Here’s how to handle them:

Filter Still Dirty After Rinsing?

If the filter remains clogged after washing, it may be too old. Over time, the foam breaks down and loses its ability to trap fine particles. Replace it with a genuine Eufy filter.

Vacuum Not Suctioning Well?

Check that:

• The filter is clean and dry.
• The dustbin is properly installed.
• The brush roller isn’t jammed.
• There are no blockages in the air path.

Filter Smells Musty?

This usually means it wasn’t dried thoroughly. Remove the filter, rinse it again, and let it dry for 48 hours in a well-ventilated area. If the smell persists, replace it.

Filter Doesn’t Fit After Cleaning?

If the filter seems warped or misshapen, it may have been exposed to heat or excessive pressure. Only use lukewarm water and avoid wringing. If it doesn’t fit, it’s likely damaged and needs replacing.

Tips for Maintaining Your Eufy 11s

Cleaning the filter is just one part of keeping your robot vacuum in great shape. Here are a few extra tips:

• Empty the dustbin after every use. This prevents dust from settling and clogging the filter faster.
• Use genuine Eufy replacement parts. Third-party filters may not fit or perform as well.
• Store your vacuum properly. Keep it on the charging dock in a dry, dust-free area.
• Update the firmware regularly. Eufy releases updates that improve performance and battery life.
• Schedule deep cleans monthly. In addition to filter cleaning, do a full inspection of all components.

When to Replace the Filter

Even with regular cleaning, filters don’t last forever. Over time, the material breaks down and loses its effectiveness.

Replace your Eufy 11s filter every 3 to 6 months, depending on usage. Signs it’s time for a new one include:

• Reduced suction despite cleaning
• Visible damage (tears, holes, fraying)
• Persistent odors
• Increased dust in the air after cleaning

Always buy replacement filters from Eufy or authorized retailers to ensure compatibility and quality.

Conclusion

Cleaning the Eufy 11s filter is a simple but essential task that keeps your robot vacuum running efficiently and your home cleaner. By following this step-by-step guide, you’ll maintain strong suction, improve air quality, and extend the life of your device.

Remember: clean the filter every 2–4 weeks, use only water, dry it completely, and replace it when needed. Pair filter maintenance with regular cleaning of the dustbin, brush roller, and sensors for the best results.

With a little care, your Eufy 11s will keep your floors spotless for years to come. So grab that toothbrush, head to the sink, and give your vacuum the TLC it deserves.