How to Change Filter on Dyson Air Purifier 2026 Guide

Changing the filter on your Dyson Air Purifier is quick, simple, and essential for maintaining peak air quality. Follow the 2026 guide to safely remove the old filter, install the new one, and reset the filter life indicator—ensuring your purifier runs efficiently and delivers cleaner air with every use. Regular filter changes prevent clogs, boost performance, and extend the lifespan of your device.

Key Takeaways

• Turn off and unplug the purifier before starting any filter maintenance.
• Locate the filter compartment at the base or rear, depending on your model.
• Remove the old filter by twisting or releasing the latch mechanism carefully.
• Install the new filter ensuring it clicks securely into place.
• Reset the filter indicator via the app or button to track lifespan accurately.
• Replace every 6–12 months for optimal performance, depending on usage.

Why Changing Your Dyson Air Purifier Filter Matters

Let’s be honest—air purifiers are one of those appliances we buy, set up, and then kind of forget about. You plug it in, turn it on, and assume it’s doing its job. But here’s the thing: your Dyson air purifier is only as good as its filter. And like any filter, whether it’s in your coffee maker or your car, it doesn’t last forever.

I learned this the hard way. A few months ago, I noticed my Dyson air purifier was running nonstop but the air in my apartment still felt stuffy. I checked the app—everything looked fine. Then I opened the machine and… yikes. The filter was clogged with dust, pet hair, and what I can only describe as “mystery gray fluff.” It had turned into a fuzzy dust magnet. That’s when I realized: changing the filter on your Dyson air purifier isn’t just a suggestion—it’s essential for clean air, energy efficiency, and keeping your machine running smoothly.

How to Know When It’s Time to Change the Filter

Unlike some appliances that beep or flash when something’s wrong, Dyson air purifiers are pretty subtle. But they do give you clues. The key is paying attention—before your air quality takes a nosedive.

Check the Dyson App for Filter Life

Most Dyson air purifiers (like the TP04, TP07, HP04, and HP07) connect to the Dyson Link app. Open it, tap on your device, and look for the “Filter Life” indicator. It shows a percentage, and once it hits 0%, it’s time for a change. But here’s a pro tip: don’t wait until it hits zero. I recommend replacing it at 10–15% life left. That way, you avoid overworking the motor or letting pollutants sneak back into your space.

For example, in my 400 sq ft living room with two cats and a partner who loves to cook, I change the filter every 6–8 months. In a smaller, less polluted room (like a bedroom with no pets), you might stretch it to 10–12 months. It really depends on your environment.

Watch for Physical Signs

Even if the app says 80%, your filter might still be struggling. Look for these red flags:

• Reduced airflow: The purifier sounds louder than usual or the fan isn’t pushing air as strongly.
• Musty or dusty smell: A clogged filter can’t trap odors, so you might notice pet smells, cooking fumes, or that “old basement” scent.
• Increased allergy symptoms: If you or your family start sneezing more, or your eyes get itchy, your purifier might not be capturing allergens effectively.
• Visible buildup: If you open the machine and see thick layers of dust or hair on the filter, it’s past due.

I once ignored these signs for too long, and my purifier started making a grinding noise. Not good. Once I changed the filter, the noise stopped. Lesson learned.

Step-by-Step Guide: How to Change Filter on Dyson Air Purifier

Now for the main event: the actual process. Don’t worry—it’s easier than changing a lightbulb. I’ve done this on multiple Dyson models (TP, HP, and DP series), and the steps are nearly identical. Let’s walk through it.

Step 1: Power Off and Unplug

First, turn off the purifier and unplug it. Safety first. I know it seems obvious, but I’ve seen people skip this step and risk damaging the motor or getting a small shock (especially if there’s moisture nearby).

Pro tip: If your purifier is on a timer or scheduled to turn on later, double-check that it’s fully powered down. The app might still show it as “on” even if the unit is off.

Step 2: Remove the Outer Shell

Most Dyson purifiers have a cylindrical design with a removable outer shell. Here’s how to open it:

• Place the purifier on a flat surface.
• Grasp the top and bottom sections with both hands.
• Twist the top section counterclockwise (left) until you feel it release.
• Gently lift it off.

On some models (like the Dyson Pure Cool TP04), you’ll hear a soft “click” when it unlocks. On newer models, the shell might slide up instead of twisting—just follow the grooves.

Be careful not to force it. If it doesn’t budge, check for dust or debris in the groove. A quick wipe with a dry cloth can help.

Step 3: Take Out the Old Filter

Inside, you’ll see two filters: a HEPA filter (usually white or light gray) and an activated carbon filter (black or dark gray). They’re stacked together, often in a single cartridge.

• Grab the filter cartridge by the handle (if it has one) or the edges.
• Pull it straight up and out.

Don’t tilt it or shake it—this can release trapped dust into the air. I once did this and ended up sneezing for 10 minutes. Not ideal.

If the filter is stuck, gently wiggle it side to side. But never use tools—Dyson filters are designed to be removed by hand.

Step 4: Insert the New Filter

Now for the fun part: installing the new one. Make sure you’ve got the right filter. Dyson sells model-specific replacements (e.g., “360 HEPA + Carbon Filter for TP04”). Using the wrong one can damage your purifier or reduce efficiency.

• Align the new filter with the grooves inside the purifier.
• Push it down gently until it sits flush.
• You should hear a soft “click” or feel it lock into place.

Tip: Check the arrow or “this side up” label on the filter. It should point toward the top of the purifier. If it’s upside down, the airflow won’t work properly.

Step 5: Reassemble and Reset

Once the new filter is in:

• Place the outer shell back on.
• Twist clockwise (right) until it locks.
• Plug the purifier back in.

Then, reset the filter life in the Dyson app:

• Open the app.
• Tap your device.
• Go to “Settings” > “Filter Life.”
• Select “Replace Filter” and confirm.

The app will reset the timer, and you’ll see a fresh 100% life indicator. If you don’t reset it, the app will keep showing the old countdown, which is confusing.

Choosing the Right Replacement Filter: What You Need to Know

Not all Dyson filters are the same. Using the wrong one can void your warranty or hurt performance. Here’s how to pick the right one.

Match Your Model Number

Every Dyson purifier has a model number (e.g., TP04, HP07, DP04). You’ll find it on the bottom of the unit or in the app. Always buy a filter designed for your exact model.

For example:

• TP04, TP07, TP09: Use the “360 HEPA + Carbon Filter”
• HP04, HP07, HP09: Same filter type (360 HEPA + Carbon)
• DP04, DP07: Also uses the 360 filter

Don’t assume “all Dyson filters are interchangeable.” They’re not. A TP04 filter won’t fit a TP02, even though both are “Pure Cool” models.

OEM vs. Third-Party Filters: The Trade-Offs

You’ll find two types of replacement filters:

• OEM (Original Equipment Manufacturer): Made by Dyson. Guaranteed to fit and perform as designed. More expensive (usually $70–$100).
• Third-party (generic): Sold by other brands (like AirX, BreatheSmart). Often cheaper ($40–$60), but quality varies.

I’ve tried both. The OEM filter is seamless—perfect fit, no gaps, and the app recognizes it instantly. A third-party filter I bought once had a slightly smaller carbon layer, so it didn’t trap cooking smells as well. It also triggered a “filter not recognized” error in the app, which was annoying.

That said, some third-party brands are good. Look for ones with:

• True HEPA certification (captures 99.97% of particles 0.3 microns)
• Activated carbon layer (for odors)
• Positive reviews mentioning “no app errors”

But if you want peace of mind, go OEM. Your purifier will thank you.

Where to Buy Filters

Stick to trusted sources:

• Dyson website: Most reliable. Ships fast, includes warranty.
• Amazon (sold by Dyson): Check the seller. Avoid third-party sellers with low ratings.
• Home improvement stores: Lowe’s, Home Depot, or Best Buy often carry Dyson filters in stock.

Pro tip: Set a reminder to buy a replacement filter when you hit 30–40% life. That way, you’re never caught off guard.

Maintenance Tips to Extend Filter Life

Changing the filter is just one part of the story. With a few small habits, you can keep your purifier—and your air—cleaner for longer.

Vacuum the Exterior Monthly

Dust and pet hair cling to the outside of the purifier, especially near the air intake. Use a soft brush or microfiber cloth to wipe it down once a month. A vacuum with a brush attachment works great too.

I do this on the same day I clean my blinds. Makes it part of my routine—no extra effort.

Clean the Sensors (If Your Model Has Them)

Some Dyson purifiers have built-in sensors (for PM2.5, VOCs, or humidity). Over time, dust can coat them and give false readings. Gently wipe the sensor ports with a dry cotton swab every 2–3 months.

Don’t use water or cleaning sprays. Just a dry swipe. I learned this after I accidentally sprayed glass cleaner near the sensor—my purifier started acting like it was in a smog zone. Took a day to recalibrate.

Keep It in the Right Spot

Placement matters. Avoid:

• Corners (blocks airflow)
• Behind furniture
• Near open windows (pollen and dust rush in)
• Direct sunlight (can warp the plastic over time)

Instead, place it in a central spot with at least 1–2 feet of clearance on all sides. I keep mine in the middle of my living room, away from the couch and curtains. It works better that way.

Run It on Auto Mode

Don’t leave it on max fan speed 24/7. Use “Auto” mode. The purifier will ramp up only when pollution is detected. This saves energy and reduces wear on the filter and motor.

My purifier runs on Auto 90% of the time. It’s quieter, more efficient, and the filter lasts longer.

Common Mistakes to Avoid (And How to Fix Them)

Even simple tasks can go wrong. Here are the biggest pitfalls—and how to avoid them.

Forgetting to Reset the Filter Life

After changing the filter, always reset the timer in the app. If you don’t, the app will keep showing a countdown, and you might replace the filter too soon (or too late).

To fix it: Open the app, go to “Filter Life,” and tap “Replace Filter.” Easy.

Installing the Filter Upside Down

It happens. The HEPA and carbon layers have a specific orientation. If you flip it, the airflow gets blocked, and the purifier won’t work well.

Check the label. Most filters have an arrow or “this side up” marking. If it’s backward, just take it out, flip it, and reinsert.

Using a Damaged Filter

Don’t use a filter that’s torn, wet, or has visible holes. It defeats the purpose. I once tried to use a filter with a small tear—my purifier sounded louder, and my allergies got worse. Not worth it.

If the filter gets wet (e.g., from a spill), let it dry completely before using. But if it’s moldy or smells bad, toss it.

Ignoring the Carbon Filter

Some people think the HEPA filter does all the work. Nope. The carbon layer traps odors, smoke, and VOCs. If it’s clogged, your air might be “clean” in terms of dust, but it’ll still smell.

Replace both filters together. Don’t try to save money by reusing the carbon one. It’s not worth the trade-off.

Data Table: Dyson Air Purifier Filter Lifespan & Replacement Guide

Model	Filter Type	Average Lifespan	Replacement Cost (OEM)	Best For
TP04 / TP07 / TP09	360 HEPA + Carbon	6–12 months	$75–$90	Large rooms, pet owners, kitchens
HP04 / HP07 / HP09	360 HEPA + Carbon	6–12 months	$75–$90	Heating + cooling, allergy sufferers
DP04 / DP07	360 HEPA + Carbon	6–12 months	$75–$90	Desk or small rooms, home offices
AM11 (older model)	HEPA + Carbon (non-360)	6–9 months	$60–$75	Small to medium rooms, budget option

Note: Lifespan varies based on air quality, pet ownership, cooking frequency, and usage hours. In high-pollution areas (near highways, cities), replace filters every 4–6 months.

The Bottom Line: Clean Air Starts With a Clean Filter

Changing the filter on your Dyson air purifier might seem like a small task, but it’s one of the most important things you can do for your home’s air quality. Think of it like changing the oil in your car—skip it, and you’ll pay the price later.

I’ve seen firsthand how a fresh filter transforms a room. The air feels lighter, the purifier runs quieter, and my cats don’t trigger allergy attacks as often. It’s not magic—it’s maintenance.

So set a reminder, keep a spare filter on hand, and don’t wait for the app to scream “0%” at you. A little effort every 6–12 months keeps your Dyson purifier running at its best. And honestly? Once you do it once, it takes less than 5 minutes. That’s a small price to pay for clean, healthy air.

Your lungs (and your guests) will thank you.

Frequently Asked Questions

How do I know when to change the filter on my Dyson air purifier?

Your Dyson air purifier will typically alert you when it’s time to change the filter, either through a light indicator on the machine or a notification in the Dyson Link app. Most models recommend replacing the filter every 12 months under normal usage, but this can vary based on air quality and usage frequency.

What type of filter does my Dyson air purifier use?

Dyson air purifiers use a combination of a HEPA filter and an activated carbon filter, which work together to capture allergens, pollutants, and odors. Always check your specific model’s manual or the Dyson website to ensure you purchase the correct replacement filter for your unit.

How to change filter on Dyson air purifier step by step?

To change the filter, first turn off and unplug the purifier. Locate the filter compartment—usually at the base or back—open the cover, remove the old filter, and insert the new one, ensuring it’s properly aligned. Close the cover and reset the filter life in the app or on the device.

Can I clean and reuse the Dyson air purifier filter?

No, Dyson filters are not designed to be cleaned and reused. Attempting to wash or vacuum the HEPA and carbon filters can damage them and reduce their effectiveness. Always replace them with a genuine Dyson filter for optimal performance.

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

You can purchase genuine Dyson replacement filters directly from the Dyson website, authorized retailers, or major electronics stores. Be sure to match the filter model number to your specific air purifier to ensure compatibility and maintain air quality.

Why is my Dyson air purifier still showing a filter alert after replacement?

If the filter alert remains after replacement, you may need to reset the filter life indicator through the Dyson Link app or by holding the power button for 10 seconds. Ensure the new filter is properly installed and that you’re using an official Dyson filter, as third-party filters may not be recognized.