How to Change LG Air Purifier Filter in 2026 A Quick Guide

Changing your LG air purifier filter in 2026 is quick and essential for optimal air quality. Simply turn off the unit, open the front panel, remove the old filter, and insert the new one—ensuring it’s properly aligned before closing. Regular replacement every 6–12 months maintains peak performance and keeps your indoor air clean and healthy.

Key Takeaways

• Check filter status regularly using the indicator light or app to ensure timely replacement.
• Turn off and unplug the purifier before replacing the filter for safety.
• Remove the front panel by pressing the release buttons or lifting gently, depending on your model.
• Replace with genuine LG filters to maintain optimal performance and air quality.
• Reset the filter indicator after installation to track the next replacement cycle accurately.
• Dispose of old filters properly by sealing them in a plastic bag to contain trapped pollutants.

Why Changing Your LG Air Purifier Filter Matters

Let’s face it—most of us don’t think about our air purifier until it starts making noise, smelling funny, or worse, our allergies kick into overdrive. I remember the first time I noticed my LG air purifier wasn’t performing like it used to. The air in my living room felt stale, and my cat’s dander was suddenly everywhere. That’s when I realized: it had been over a year since I last changed the filter. And honestly? I had no idea how to change LG air purifier filter properly. Sound familiar?

Air purifiers are like silent guardians. They work behind the scenes, trapping dust, pollen, pet hair, smoke, and even airborne viruses. But over time, the filters get clogged. Think of them like sponges—once they’re soaked, they can’t absorb more. A dirty filter doesn’t just reduce performance; it can actually recirculate pollutants back into your home. Not exactly the clean air you signed up for, right? That’s why knowing how to change LG air purifier filter is more than a maintenance task—it’s a health necessity.

When to Change Your LG Air Purifier Filter

Know the Signs: When Your Filter Is Crying for Help

You don’t need a degree in environmental science to know when your filter needs replacing. Your LG air purifier will give you clues—some subtle, some not so subtle. Here are the most common signs:

• Reduced airflow: If the fan seems louder but the air output feels weaker, the filter is likely clogged.
• Increased allergy symptoms: Sneezing, itchy eyes, or congestion that worsens indoors? That’s a red flag.
• Unusual odors: A musty or “off” smell coming from the unit usually means mold or bacteria buildup.
• Filter indicator light: Many LG models have an LED that turns yellow or red when it’s time to replace the filter.
• Visible dirt or discoloration: If you can see grime on the pre-filter or the HEPA filter looks gray instead of white, it’s time.

I learned this the hard way. My LG PuriCare model started making a low humming noise. At first, I thought it was just the fan. But after checking the manual (yes, I finally read it!), I realized the filter indicator was blinking red. A quick inspection revealed a HEPA filter that looked more like a dust bunny than a filter. Lesson learned: don’t ignore the signs.

How Often Should You Change It?

The frequency depends on three main factors: usage, environment, and filter type. Here’s a general guideline:

• Pre-filter: Every 2–4 weeks (washable, so clean it more often).
• HEPA filter: Every 6–12 months (up to 18 months in clean environments).
• Activated carbon filter: Every 6–12 months (sooner if you cook a lot or have pets).

For example, if you live in a city with high pollution, run the purifier 24/7, and have two shedding dogs, you might need to replace the HEPA filter every 6 months. On the other hand, if you use it occasionally in a low-dust home, you could stretch it to 18 months. LG’s official recommendation is usually “every 12 months,” but your home is unique. Use your judgment—and your senses.

Tools and Supplies You’ll Need

What to Gather Before You Start

Changing your LG air purifier filter isn’t a DIY project that requires power tools. It’s more like changing a lightbulb—simple, but you need the right supplies. Here’s what you’ll need:

• Replacement filter set: Make sure it’s the correct model for your LG unit. Check the manual or the label on your current filter. (Pro tip: Take a photo of the old filter’s model number before removing it.)
• Microfiber cloth: For wiping down the interior and exterior.
• Vacuum with brush attachment: To suck up dust around the filter compartment.
• Disposable gloves (optional): If you’re sensitive to dust or pet dander.
• Mask (optional): If you have allergies or asthma.

I keep a “filter change kit” in my laundry room: a labeled bin with spare filters, a cloth, and a small vacuum. It saves me time and stress. One time, I tried to change the filter without gloves—ended up sneezing for an hour. Not fun.

Where to Buy Replacement Filters

You’ve got options:

• LG official website: Most reliable, but often pricier.
• Authorized retailers: Amazon, Best Buy, or Home Depot. Look for “sold by LG” or “sold by authorized seller.”
• Third-party brands: Some make compatible filters. Check reviews and compatibility carefully. I once bought a cheap third-party HEPA filter—it didn’t seal properly and let dust bypass the filter. Never again.

Always verify the model number. For example, the LG PuriCare 360° model uses a different filter than the LG AeroTower. A mismatched filter won’t fit, or worse, could damage the unit.

Step-by-Step: How to Change LG Air Purifier Filter

Step 1: Power Off and Unplug the Unit

Safety first! Always turn off and unplug your air purifier before opening it. Even if the unit has an automatic shutoff when opened, it’s better to be safe. I once forgot to unplug mine and got a small electric shock when touching the internal fan. Not a pleasant experience.

Step 2: Open the Filter Access Panel

Most LG air purifiers have a front or side panel that snaps or screws open. Here’s how to handle common models:

• LG PuriCare (e.g., AS560DWR0): Press the release buttons on the sides and pull the front panel forward.
• LG AeroTower: Twist the top cover counterclockwise and lift it off.
• LG Tower Air Purifier: Remove the back cover by sliding it upward.

If you’re unsure, refer to your user manual. LG’s website has downloadable PDFs for every model. I keep mine bookmarked on my phone—just in case.

Step 3: Remove the Old Filters

Now comes the “dirty” part. Filters are usually stacked in this order (from front to back):

1. Pre-filter (mesh or foam, washable).
2. Activated carbon filter (black or gray, often in a frame).
3. HEPA filter (white or off-white, with pleated paper).

Remove them one by one. Here’s what to do:

• Pre-filter: Pull it out gently. If it’s washable, rinse it under cold water, let it dry completely (24 hours), and set it aside.
• Carbon filter: Note its orientation (usually has an arrow for airflow direction). Slide it out.
• HEPA filter: Handle it carefully—don’t touch the pleated surface. It’s fragile and can tear easily.

Pro tip: Lay the old filters on a trash bag as you remove them. It contains the dust and makes cleanup easier. I once dropped a HEPA filter on the floor—ended up vacuuming the whole room afterward.

Step 4: Clean the Interior

With the filters out, take a moment to clean the inside of the unit. Use your vacuum’s brush attachment to remove dust from the fan, vents, and filter compartment. Then, wipe down the surfaces with a microfiber cloth. Avoid using water or cleaners—they can damage electrical components.

One time, I found a dead spider in the filter compartment. Gross, but it reminded me why regular cleaning matters. A clean interior helps the new filters work better and last longer.

Step 5: Install the New Filters

Now reverse the process:

1. Insert the new HEPA filter: Align it with the airflow arrow (usually points toward the fan). Push it in gently until it clicks or sits flush.
2. Add the carbon filter: Match the airflow arrow. It should slide in smoothly.
3. Reinstall the pre-filter: If you cleaned the old one, make sure it’s 100% dry. If you’re replacing it, insert the new one.

Double-check that all filters are seated properly. A loose filter can reduce efficiency or cause noise. I once installed a carbon filter backward—the purifier ran, but the air still smelled like my neighbor’s barbecue. Oops.

Step 6: Close the Panel and Power On

Snap or screw the access panel back into place. Plug in the unit and turn it on. If your model has a filter reset button (common on LG PuriCare), press it to reset the indicator light. Wait a few minutes to ensure the airflow is strong and consistent.

Listen for unusual noises. If you hear rattling, turn it off and recheck the filter alignment. A properly installed filter should be silent.

Tips for Extending Filter Life and Performance

How to Get the Most Out of Your Filters

Filters aren’t cheap. The average LG HEPA filter costs $60–$100, so you want it to last. Here’s how to extend its life without compromising air quality:

• Clean the pre-filter monthly: A clogged pre-filter forces the HEPA filter to work harder. Wash it with cold water and let it air dry.
• Vacuum the exterior weekly: Dust on the outside can get sucked in and clog the pre-filter faster.
• Run the purifier on auto mode: Many LG models adjust fan speed based on air quality, reducing wear on the filter.
• Keep windows closed when using the purifier: Outdoor pollutants shorten filter life.
• Use in a well-ventilated room: Don’t place it in a corner or behind furniture. Good airflow improves efficiency.

I started cleaning my pre-filter every three weeks instead of monthly. The result? My HEPA filter lasted 14 months instead of 10. Not bad for a simple habit.

Common Mistakes to Avoid

Even small mistakes can affect performance. Watch out for these:

• Reusing a dirty HEPA filter: Never try to “clean” a HEPA filter with water or vacuum it. It damages the fibers.
• Ignoring the carbon filter: It absorbs odors, so replacing it is just as important as the HEPA filter.
• Installing filters in the wrong order: Always follow the sequence: pre-filter → carbon → HEPA.
• Forgetting to reset the indicator: If you don’t reset the filter light, it might stay red, making you think the filter needs changing again.
• Using non-LG filters without checking compatibility: Third-party filters can void your warranty.

One mistake I made: I left the plastic wrap on a new HEPA filter. The purifier ran fine, but the air quality didn’t improve. Took me a week to figure out why. Always remove the packaging!

Model-Specific Filter Change Guide (2026 Update)

LG PuriCare 360° (AS560DWR0, AS560DWR5)

This popular model uses a cylindrical filter stack. To change it:

1. Press the release buttons on the sides and pull the front panel off.
2. Remove the pre-filter (mesh), carbon filter (black), and HEPA filter (white).
3. Clean the interior with a vacuum and cloth.
4. Install new filters in the same order. The HEPA filter has a tab to help align it.
5. Reattach the front panel and press the “Filter Reset” button on the control panel.

Note: The AS560DWR5 has a smart filter indicator. After resetting, it will recalibrate within 24 hours.

LG AeroTower (AT100, AT150)

This sleek tower has a top-loading design:

1. Twist the top cover counterclockwise and lift it off.
2. Pull out the filter cartridge (a single unit with pre-filter, carbon, and HEPA layers).
3. Wipe the interior and replace the cartridge.
4. Reattach the top cover and twist it clockwise to lock.
5. Press the “Filter Reset” button on the remote or control panel.

Tip: The AeroTower’s filter is expensive (~$120), so clean the pre-layer weekly to extend its life.

LG Tower Air Purifier (AS401WWL0)

This compact model has a back-access design:

1. Slide the back cover upward to remove it.
2. Pull out the filter stack (pre-filter, carbon, HEPA).
3. Clean the interior and install new filters.
4. Slide the back cover back into place.
5. Press and hold the “Filter” button for 3 seconds to reset.

Note: The AS401WWL0 doesn’t have a smart indicator. Use the 12-month rule or check the filter visually.

Filter Replacement Data Table (2026 Models)

Model	Pre-Filter	Carbon Filter	HEPA Filter	Replacement Frequency	Reset Method
LG PuriCare 360°	Washable mesh	Replace every 12 months	Replace every 12 months	12 months (adjust based on use)	Press “Filter Reset” button
LG AeroTower	Integrated in cartridge	Integrated in cartridge	Integrated in cartridge	12 months	Press “Filter Reset” on remote
LG Tower Air Purifier	Washable foam	Replace every 12 months	Replace every 12 months	12 months	Hold “Filter” button for 3 sec
LG PuriCare Mini	Washable mesh	Replace every 12 months	Replace every 12 months	12 months	No indicator—use calendar

This table helps you track replacements. I use a Google Calendar reminder set to 11 months—it gives me time to order filters before the old ones expire.

Final Thoughts: Breathe Easy with a Fresh Filter

Changing your LG air purifier filter might seem like a small task, but it has a big impact. Clean air isn’t just about comfort—it’s about health, sleep quality, and even mental clarity. I’ve noticed a real difference since I started changing my filter on time. Fewer allergy attacks, better sleep, and even my cat seems less itchy.

The process is simple once you get the hang of it. Just remember: power off, remove old filters, clean the interior, install new ones, reset the indicator. Do it every 12 months (or sooner if needed), and you’ll keep your LG air purifier running at peak performance.

And hey, if you’re like me and sometimes forget—set a reminder. I use the Notes app on my phone with a photo of the filter model and a yearly alert. It takes five minutes, but the benefits last all year.

So go ahead—open that panel, swap those filters, and take a deep breath. Your lungs (and your family) will thank you. And if you run into trouble? Don’t stress. LG’s customer support is helpful, and YouTube has great step-by-step videos. You’ve got this.

Now, if only changing my cat’s litter box were this easy…

Frequently Asked Questions

How do I know when to change my LG air purifier filter?

Most LG air purifiers have a filter replacement indicator light that turns on when it’s time to change the filter. You should also check the filter every 6–12 months depending on usage and air quality.

What type of filter does my LG air purifier use?

LG air purifiers typically use a combination filter, including a pre-filter, HEPA filter, and activated carbon filter. Check your model’s manual or the existing filter for the exact part number to ensure compatibility.

How do I access the filter compartment on my LG air purifier?

Turn off and unplug the unit, then locate the rear or side panel—usually secured by clips or screws. Gently open the compartment to access the used filter for removal and replacement.

Can I clean and reuse the LG air purifier filter instead of replacing it?

Only the pre-filter is washable and reusable; the HEPA and carbon filters must be replaced. Attempting to clean non-washable filters can damage them and reduce air purification efficiency.

Where can I buy a replacement filter for my LG air purifier?

You can purchase genuine LG air purifier filters from the official LG website, authorized retailers, or online marketplaces like Amazon. Always verify the model number to ensure a proper fit.

How often should I change the LG air purifier filter in 2026?

In 2026, LG recommends replacing filters every 6 to 12 months, depending on usage and environmental factors like pet dander or pollution. Follow the indicator light or app alerts for timely replacements.