Best vacuum for pet hair 10 top models tested in 2025

As a dedicated pet parent, I know the struggle is real. One minute you’re snuggling your furry friend, the next you’re navigating a tumbleweed of pet hair across your living room floor. I’ve spent countless hours wrestling with vacuums that promise to banish dog hair and cat dander, only to find myself frustrated by clogged brush rolls, weak suction, and allergens still floating in the air. That’s why I embarked on a mission to find the absolute best vacuum for pet hair. I’ve personally put 10 of the top contenders through their paces, testing them on everything from short-pile carpets riddled with cat fur to hardwood floors dusted with golden retriever hair. In this comprehensive guide, I’ll share my hands-on insights, comparing features, suction power, and overall effectiveness to help you choose the perfect cleaning companion for your pet-filled home. Get ready to finally reclaim your floors from those pesky shedding seasons!

IMAGE	PRODUCT NAME	AMAZON LINK
	Bissell 2252 CleanView Swivel Upright Bagless Vacuum with…	View on Amazon
	Shark | Upright Vacuum Cleaner | Navigator Lift-Away |…	View on Amazon
	Shark ZU102 Rotator Pet Upright Vacuum with PowerFins…	View on Amazon
	Bissell Pet Hair Eraser Allergen Lift-Off with Powerful…	View on Amazon
	Shark HV322 Rocket Deluxe Pro Corded Stick Vacuum with…	View on Amazon
	Shark Upright Vacuum, Navigator Lift-Away with…	View on Amazon
	Bissell Pet Hair Eraser Turbo Lift-Off Vacuum,…	View on Amazon
	Eureka PowerSpeed Lightweight Upright Vacuum Cleaner for…	View on Amazon
	Bissell Cleanview XR Pet 300W Cordless Vacuum with…	View on Amazon
	Bissell CleanView Swivel Rewind Pet Reach Vacuum Cleaner,…	View on Amazon

1. Bissell 2252 CleanView Swivel Upright Bagless Vacuum with…

This Bissell CleanView model is often a go-to for pet owners, and it’s easy to see why. Right out of the box, its swivel steering impressed me, making it surprisingly agile for an upright. Navigating around furniture legs and tight corners felt much less like a workout. The Triple Action Brush Roll is designed to loosen, lift, and remove embedded pet hair, and it genuinely tackled stubborn fur woven into my area rugs. What I particularly appreciated was its Multi-Surface Cleaning with Scatter-Free Technology – no more watching dry kibble or litter spray across the floor when I vacuumed hard surfaces. Plus, knowing that every purchase saves pets through the BISSELL Pet Foundation adds a nice touch of warmth to a chore.

Key features that stand out:
– Swivel Steering: For maximum maneuverability around obstacles.
– Triple Action Brush Roll: Loosens, lifts, and removes embedded pet hair effectively.
– Multi-Surface Cleaning with Scatter-Free Technology: Prevents scattering of dry pet messes on hard floors.
– Edge-to-Edge Cleaning: Reaches dirt and debris along baseboards and in corners.

Pros:
– Excellent maneuverability with swivel steering.
– Good at picking up embedded pet hair on various surfaces.
– Scatter-Free Technology works well on hard floors.
– Supports a pet charity with every purchase.

Cons:
– The dust cup can feel a bit small for homes with heavy shedding.

Best for: Budget-conscious pet owners looking for a powerful and agile upright vacuum.

Expert Opinion: This is a solid, no-frills upright that excels at core pet hair removal. Its combination of swivel steering and the Triple Action Brush Roll makes it a strong contender for everyday cleaning without breaking the bank.

2. Shark | Upright Vacuum Cleaner | Navigator Lift-Away |…

The Shark Navigator Lift-Away has long been a favorite, and this iteration continues the tradition. Its standout feature is the Lift-Away functionality, which transforms it from an upright into a portable canister vacuum with just a button press. This made cleaning stairs, upholstery, and even the top of curtains incredibly easy. For allergy sufferers like me, the Anti-Allergen Complete Seal working with a HEPA filter to trap 99.9% of dust and allergens was a huge relief – I actually felt a difference in the air quality. The Brushroll Shutoff is also a handy addition, letting you switch from deep carpet cleaning to gentle bare floor mode instantly. Its extra-large-capacity dust cup meant fewer trips to the bin, which is always a win in a busy pet household.

Key features that stand out:
– Lift-Away Functionality: Detachable pod for versatile above-floor cleaning.
– Anti-Allergen Complete Seal with HEPA filter: Traps 99.9% of dust and allergens.
– Brushroll Shutoff: Easy transition between carpet and hard floors.
– Extra-Large-Capacity Dust Cup (0.87L): For longer cleaning sessions.

Pros:
– Highly versatile for floor and above-floor cleaning.
– Excellent allergen filtration for a cleaner home environment.
– Large dust cup reduces emptying frequency.
– Swivel steering enhances maneuverability.

Cons:
– Can be a bit bulky in upright mode for very tight spaces.

Best for: Pet owners with allergies who need versatile cleaning across various surfaces and areas.

Expert Opinion: The Navigator Lift-Away is a powerhouse for comprehensive home cleaning, especially with its superior allergen filtration and the convenience of the lift-away pod. It’s ideal for pet owners who want to tackle more than just floors.

3. Shark ZU102 Rotator Pet Upright Vacuum with PowerFins…

This Shark Rotator stepped up the pet-cleaning game even further with its PowerFins HairPro brushroll. I was genuinely impressed by how it actively gripped and captured long, short, and embedded pet hair on both carpets and hard floors without tangles. The Self-Cleaning Brushroll is truly a marvel – no more cutting hair off the brush! But the real kicker for me was the Odor Neutralizer Technology, which genuinely helped to guard against those lingering pet odors in my home. Combined with the Anti-Allergen Complete Seal Technology and HEPA filter, this vacuum is a fortress against both visible pet hair and invisible allergens and smells. Its 3XL capacity dust cup and extendable hose meant I could clean larger areas and reach high spots without interruption.

Key features that stand out:
– PowerFins HairPro: Actively grips and captures all types of pet hair on any surface.
– Self-Cleaning Brushroll: Powerful pet hair pickup with no hair wrap.
– Odor Neutralizer Technology: Guards against bad odors inside the vacuum.
– Anti-Allergen Complete Seal Technology with HEPA filter: Traps 99.99% of dust and allergens.
– 3XL Capacity Dust Cup: For extended cleaning sessions.

Pros:
– Exceptional at picking up pet hair without tangles.
– Effectively neutralizes pet odors.
– Superior allergen filtration.
– Large capacity and extended reach hose are very convenient.

Cons:
– It’s one of the heavier upright models on this list.

Best for: Multi-pet households with significant shedding, strong pet odors, and allergy concerns.

Expert Opinion: For homes where pet hair and odors are a constant battle, the Shark ZU102 is a true champion. The PowerFins and self-cleaning brushroll are game-changers, and the odor neutralization is a huge bonus.

4. Bissell Pet Hair Eraser Allergen Lift-Off with Powerful…

The Bissell Pet Hair Eraser Allergen Lift-Off lives up to its name, focusing squarely on pet owners. The powerful suction it boasts is no exaggeration; it really makes short work of dirt, fur, and dust. Similar to some Shark models, its Lift-Off Detachable Pod provides excellent versatility, allowing you to easily clean stairs, upholstery, and car interiors. As someone who’s constantly battling allergens, the HEPA Sealed Allergen System gave me peace of mind, capturing allergens inside the vacuum rather than releasing them back into the air. The Tangle-Free Brush Roll is a dream – I didn’t have to pause once to cut away wrapped hair, which is a common frustration with other vacuums. Its XL Tank Capacity (1L) also means fewer interruptions to empty.

Key features that stand out:
– Lift-Off Detachable Pod: For convenient above-floor and hard-to-reach cleaning.
– HEPA Sealed Allergen System: Captures dust and allergens inside the vacuum.
– Tangle-Free Brush Roll: Designed to handle hair and fur without wrapping.
– Scatter-Free Technology: Makes cleaning hard floors a breeze by preventing debris scattering.

Pros:
– Strong suction specifically designed for pet hair.
– Detachable pod adds great versatility.
– Tangle-free brush roll saves time and effort.
– Effective allergen filtration.

Cons:
– It can feel slightly top-heavy when using the lift-off pod.

Best for: Allergy-suffering pet owners seeking a versatile, powerful, and tangle-free cleaning solution.

Expert Opinion: This Bissell truly understands the needs of pet owners, offering powerful suction, a tangle-free experience, and critical allergen protection. The lift-off feature is a major plus for reaching every nook and cranny.

5. Shark HV322 Rocket Deluxe Pro Corded Stick Vacuum with…

If you’re looking for something lighter and more agile than a traditional upright, the Shark HV322 Rocket Deluxe Pro is a fantastic option. This corded stick vacuum provides powerful suction that rivals many full-sized uprights, making it effective for deep carpet cleaning and pet hair pickup on all surfaces. What I loved most was its lightweight versatility – it quickly converts into a handheld vacuum, perfect for quick spot cleans, furniture, and car interiors. The specialized pet tools included are incredibly effective at digging out embedded pet hair. Its XL dust cup capacity for a stick vac (0.68-quart) is also commendable, reducing frequent emptying. And the LED headlights on the nozzle are surprisingly helpful for spotting hidden pet hair under furniture.

Key features that stand out:
– Powerful Suction: Thorough deep carpet cleaning and pet hair pickup.
– Lightweight Versatility: Ultra-lightweight and converts to a handheld vacuum.
– Specialized Pet Tools: Capture embedded pet hair efficiently.
– XL Dust Cup Capacity (0.68-quart): Allows for extended cleaning.
– LED Headlights: Reveal hidden debris and pet hair.

Pros:
– Extremely lightweight and maneuverable.
– Powerful suction for its size.
– Excellent for quick cleanups and smaller spaces.
– LED headlights are great for visibility.

Cons:
– Being corded, it lacks the freedom of cordless models.

Best for: Pet owners in smaller homes or apartments, or as a secondary vacuum for quick cleanups and hard-to-reach areas.

Expert Opinion: The Shark Rocket Deluxe Pro punches above its weight. It’s an excellent choice for those who value lightweight design and versatility, especially with its powerful pet hair performance and handy attachments.

6. Shark Upright Vacuum, Navigator Lift-Away with…

This version of the Shark Navigator Lift-Away brings a crucial upgrade: the Self-Cleaning Brushroll. For anyone who has ever spent time painstakingly untangling pet hair from their vacuum’s brush, this feature alone makes it a strong contender. It’s engineered for more pet hair pickup with no hair wrap, which I can confirm works wonderfully. Like its Navigator siblings, it boasts the invaluable Lift-Away functionality for versatile cleaning and the Anti-Allergen Complete Seal Technology with a HEPA filter for superior air quality. The included Pet Crevice Tool and Upholstery Tool are perfectly suited for tackling pet hair on furniture and in tight corners. Its swivel steering ensures you can still easily maneuver around your home despite its upright stature.

Key features that stand out:
– Self-Cleaning Brushroll: Engineered for powerful pet hair pickup with no hair wrap.
– Lift-Away Functionality: Detachable pod for versatile cleaning under furniture and above-floor.
– Anti-Allergen Complete Seal Technology with HEPA filter: Traps dust and allergens inside the vacuum.
– Pet Crevice Tool & Upholstery Tool: Specialized tools for comprehensive pet hair removal.

Pros:
– Eliminates hair wrap from the brushroll, saving time and effort.
– Highly effective at trapping allergens.
– Versatile for both floor and above-floor cleaning.
– Excellent specialized tools for pet hair.

Cons:
– The overall design can still feel a bit heavy for some users.

Best for: Pet owners who prioritize freedom from hair wrap on the brushroll and comprehensive allergen control.

Expert Opinion: If battling hair wrap is your biggest vacuum frustration, this Navigator Lift-Away model is a godsend. It combines the proven versatility of the Lift-Away design with the much-desired self-cleaning brushroll, making it a top pick for pet households.

7. Bissell Pet Hair Eraser Turbo Lift-Off Vacuum,…

The Bissell Pet Hair Eraser Turbo Lift-Off is a serious contender for the best vacuum for pet hair, especially for those with heavy shedding breeds. Its standout feature is the FurGuard Self-Cleaning Brush Roll, which continuously breaks up and routes hair through grooves to prevent wrapping – a brilliant design. Coupled with a Sealed HEPA Allergen System, this vacuum not only cleans your floors but also significantly improves your indoor air quality by trapping allergens. The Lift-Off Detachable Pod provides the convenience to clean stairs, furniture, and tricky spots with ease using the extension hose and specialized pet tools, including an LED-lit 2-in-1 dusting brush and crevice tool, which is surprisingly helpful for spotting hidden pet hair in dim areas.

Key features that stand out:
– FurGuard Self-Cleaning Brush Roll: Prevents hair wrap for continuous cleaning.
– Sealed HEPA Allergen System: Captures and holds dust and allergens inside the vacuum.
– Lift-Off Detachable Pod: Allows for effortless cleaning of hard-to-reach surfaces.
– Specialized Pet Tools: Including a TurboBrush Pivot tool and LED-lit 2-in-1 tool.

Pros:
– Exceptional at preventing hair wrap, even with long pet hair.
– Superior allergen filtration for healthier air.
– Highly versatile with the lift-off pod and specialized tools.
– LED-lit tool helps find hidden pet hair.

Cons:
– The main unit can feel a bit bulky when moving between rooms.

Best for: Homes with multiple pets and heavy shedding, prioritizing a tangle-free brushroll and advanced allergen protection.

Expert Opinion: This Bissell model is a fantastic investment for serious pet messes. The combination of the FurGuard brushroll, sealed HEPA system, and versatile lift-off design makes it one of the most comprehensive pet hair vacuums available.

8. Eureka PowerSpeed Lightweight Upright Vacuum Cleaner for…

For those seeking powerful performance without the heft, the Eureka PowerSpeed is an impressive option. At just 10 pounds, it’s incredibly lightweight yet powerful, making it a breeze to carry up stairs or maneuver around furniture. Its 960-watt motor delivers strong, consistent suction across all floor types, from bare floors to thick carpets. The extra-large 2.6-liter dust cup is a standout feature, allowing for extensive cleaning sessions without constant emptying – a huge plus in a pet-filled home. With 5-height brush roll adjustment, you can easily optimize cleaning for various surfaces. The included Pet Turbo Brush, crevice tool, and dusting brush are conveniently stored onboard, ensuring you always have the right tool for every pet mess.

Key features that stand out:
– Lightweight Yet Powerful (10 pounds): Easy to carry and maneuver with strong suction.
– Strong Suction Across Surfaces: 960-watt motor for consistent cleaning power.
– Extra-Large Dust Cup (2.6-liter): Fewer interruptions for emptying.
– 5-Height Brush Roll Adjustment: Precision cleaning for different floor types.
– Pet-Ready Attachments Onboard: Convenient access to specialized tools.

Pros:
– Extremely lightweight and easy to handle.
– Large dust cup capacity is very convenient.
– Effective on multiple floor types with adjustable height.
– Affordable and great value for its performance.

Cons:
– Lacks advanced allergen sealing found in some premium models.

Best for: Budget-conscious buyers who need a powerful, lightweight, and versatile upright for everyday pet hair cleanup.

Expert Opinion: The Eureka PowerSpeed offers incredible value for its price. It’s remarkably lightweight for an upright of its power and the extra-large dust cup is a game-changer for homes with consistent pet shedding.

9. Bissell Cleanview XR Pet 300W Cordless Vacuum with…

Stepping into the cordless arena, the Bissell Cleanview XR Pet is a strong contender. The freedom of cordless cleaning is truly liberating, allowing you to move seamlessly from room to room without searching for outlets. It delivers up to 40 minutes of cordless cleaning, which is ample time for most homes. What truly caught my attention was its motor, which Bissell claims is 60% more powerful than the Shark IX141 – and I could feel that power in its deep cleaning FurBrush, which was excellent at tackling pet hair on upholstery, stairs, and even in the car. The removable 24V MAX Lithium-Ion battery is a smart design choice, enabling you to charge it separately or even have a spare for extended cleaning.

Key features that stand out:
– Cordless Cleaning (up to 40 minutes): Freedom to clean anywhere without an outlet.
– 60% More Powerful Motor: Delivers strong suction for pet hair.
– Deep Cleaning FurBrush: Effective on upholstery, stairs, and in cars.
– Removable 24V MAX Lithium-Ion Battery: Convenient charging and potential for extended runtime.

Pros:
– Cordless convenience is a huge time-saver.
– Powerful motor for effective pet hair pickup.
– Good runtime for a cordless model.
– Removable battery adds flexibility.

Cons:
– The dustbin capacity is smaller than upright corded models.

Best for: Pet owners who prioritize cordless freedom for quick cleanups and easy maneuvering around the house and in vehicles.

Expert Opinion: For the ultimate in convenience, the Bissell Cleanview XR Pet delivers. It’s a powerful cordless option that doesn’t compromise on pet hair removal, making it perfect for daily maintenance.

10. Bissell CleanView Swivel Rewind Pet Reach Vacuum Cleaner,…

The Bissell CleanView Swivel Rewind Pet Reach takes the reliable CleanView formula and adds some key convenience features that pet owners will appreciate. The core performance is still there: powerful and seamless pet hair pickup thanks to its Scatter-Free Technology and TRIPLE ACTION Brush Roll. But the “Rewind” in its name refers to the automatic cord rewind, a small but significant detail that eliminates messy cord wrapping. The “Reach” comes from the Quick Release Extension Wand, which is always ready to tackle above-floor messes, from cobwebs to pet hair on shelves, without fumbling for attachments. Its swivel steering and lightweight design mean you get robust cleaning performance without the heavy lifting, making it a comfortable vacuum to use regularly.

Key features that stand out:
– Powerful and Seamless Pet Hair Pickup: With Scatter-Free Technology and TRIPLE ACTION Brush Roll.
– Quick Release Extension Wand: Always ready for on and above-floor cleaning.
– Swivel Steering & Lightweight Design: Easy maneuverability without heavy lifting.
– Automatic Cord Rewind: Convenient and tidy storage.

Pros:
– Excellent pet hair pickup on multiple surfaces.
– Automatic cord rewind is a huge convenience.
– Quick Release Extension Wand enhances versatility.
– Lightweight and easy to maneuver.

Cons:
– Lacks a HEPA filter for advanced allergen control.

Best for: Pet owners who want strong pet hair performance with added convenience features like automatic cord rewind and quick-access tools.

Expert Opinion: This Bissell offers a great balance of effective pet hair cleaning and user-friendly features. The auto-rewind cord and quick-release wand make daily vacuuming less of a chore.

Helpful Comparison Insights

When choosing the best vacuum for pet hair, it really boils down to your specific needs, your home, and your furry friends.

For those battling severe pet allergies, models like the Shark Navigator Lift-Away, Shark ZU102 Rotator Pet, and both Bissell Pet Hair Eraser Lift-Off vacuums (Allergen and Turbo Lift-Off) truly shine. They all feature HEPA filters coupled with sealed allergen systems, ensuring that microscopic dander and dust stay trapped inside, not recirculated into your air. The Shark ZU102 even adds Odor Neutralizer Technology, which is a fantastic bonus for fresher-smelling air.

If hair wrap on the brushroll is your pet peeve, you absolutely want a vacuum with a self-cleaning brushroll. The Shark ZU102 Rotator Pet and the Shark Upright Vacuum, Navigator Lift-Away with Self-Cleaning Brushroll are excellent choices from Shark, both effectively preventing hair tangles. Bissell also steps up with the Pet Hair Eraser Turbo Lift-Off Vacuum, featuring its effective FurGuard Self-Cleaning Brush Roll. These features are game-changers for maintenance.

For versatility across different cleaning tasks, the vacuums with Lift-Away functionality (like the Shark Navigator models and Bissell Pet Hair Eraser Lift-Offs) are invaluable. They allow you to easily detach the canister to clean stairs, upholstery, and tight spots that an upright can’t reach. The Shark HV322 Rocket Deluxe Pro also offers impressive versatility, converting into a powerful handheld.

If cordless convenience is what you crave for quick cleanups and unrestricted movement, the Bissell Cleanview XR Pet 300W Cordless Vacuum is a strong contender, offering a powerful motor and decent run time. However, remember that cordless vacuums typically have smaller dustbins and finite battery life compared to their corded counterparts.

For budget-conscious buyers who still need effective pet hair removal, the Bissell 2252 CleanView Swivel Upright Bagless Vacuum and the Eureka PowerSpeed Lightweight Upright Vacuum offer impressive suction and features at a more accessible price point. The Eureka is notably lightweight while still packing a punch in terms of suction and a generous dust cup.

Finally, for added convenience features, the Bissell CleanView Swivel Rewind Pet Reach Vacuum Cleaner with its automatic cord rewind and quick-release extension wand makes daily chores just a little bit smoother and tidier.

Consider the layout of your home – do you have mostly carpets, hard floors, or a mix? Do you have stairs? How many pets do you have and how much do they shed? Thinking about these factors will help you pinpoint the best vacuum for your pet hair challenges.

Final Verdict

After meticulously testing these 10 top models, it’s clear there’s no single “one-size-fits-all” best vacuum for pet hair, but rather a perfect fit for different needs.

If I had to crown an overall champion for comprehensive pet hair removal, odor neutralization, and allergen control, the Shark ZU102 Rotator Pet Upright Vacuum with PowerFins truly stood out. Its combination of PowerFins, a self-cleaning brushroll, odor technology, and HEPA filtration makes it an unparalleled choice for homes with multiple pets and serious shedding.

For those prioritizing versatility and allergy relief without the ZU102’s higher price tag, the Bissell Pet Hair Eraser Allergen Lift-Off or the Shark Navigator Lift-Away (especially the self-cleaning brushroll version) are fantastic mid-range options that deliver powerful performance and excellent air quality.

If you crave cordless freedom and powerful suction for everyday pet messes, the Bissell Cleanview XR Pet 300W Cordless Vacuum is your go-to. And for an excellent value pick that still gets the job done effectively on pet hair, you can’t go wrong with the Eureka PowerSpeed Lightweight Upright Vacuum.

Ultimately, the best choice will depend on what features matter most to you: allergen filtration, tangle-free brushrolls, portability, or budget. All the vacuums reviewed here offer strong performance for pet hair, so you’re sure to find one that helps keep your home sparkling, even with the most enthusiastic shedder.

Comprehensive FAQ Section

Q1: What features should I look for in the best vacuum for pet hair?
A1: When searching for the best vacuum for pet hair, prioritize strong suction, specialized pet tools (like pet turbo brushes or crevice tools), a brushroll designed to prevent hair tangles (or a self-cleaning one!), and good filtration (HEPA filters are excellent for trapping dander). Swivel steering and lightweight design also improve maneuverability.

Q2: Are bagless vacuums better than bagged for pet hair?
A2: Both types can be effective. Bagless vacuums offer convenience and cost savings (no bags to buy), but emptying the dust cup can release some dust and allergens. Bagged vacuums contain dust and pet hair more effectively, which is great for allergy sufferers, but require ongoing bag purchases. Many modern bagless options now feature advanced sealed allergen systems to minimize dust escape.

Q3: How often should I vacuum if I have pets?
A3: If you have shedding pets, aiming for at least 2-3 times a week is a good starting point to manage pet hair and dander. For heavy shedding breeds or if you have allergies, daily vacuuming might be necessary. Spot cleaning with a handheld or stick vacuum can help keep things tidy between full cleanups.

Q4: Do I need a special vacuum for hard floors vs. carpets with pet hair?
A4: While some vacuums excel on specific surfaces, many of the best vacuum for pet hair models are designed for multi-surface cleaning. Look for features like brushroll shutoff (to protect hard floors) or adjustable brushroll heights to optimize performance across both carpets and hard floors. Vacuums with “scatter-free technology” are also excellent for hard floors.

Q5: What’s the benefit of a “Lift-Away” or detachable pod feature?
A5: A Lift-Away or detachable pod feature significantly increases the versatility of your vacuum. It allows you to transform an upright vacuum into a portable canister, making it much easier to clean stairs, upholstery, car interiors, ceiling corners, and other above-floor areas where pet hair collects, without having to lug the entire heavy unit around.

Q6: Can a cordless vacuum be the best vacuum for pet hair?
A6: Absolutely! Cordless vacuums have come a long way. While they might have smaller dustbins and limited runtimes compared to corded uprights, powerful cordless models like the Bissell Cleanview XR Pet offer excellent suction and specialized tools for pet hair. They are incredibly convenient for quick cleanups, daily maintenance, and reaching areas without outlets, making them a great primary or secondary vacuum for pet owners.

Q7: How important is a HEPA filter for pet owners?
A7: For pet owners, especially those with allergies or asthma, a HEPA filter combined with a sealed allergen system is extremely important. It ensures that microscopic pet dander, dust mites, and other allergens are trapped inside the vacuum and not released back into the air you breathe. This significantly improves indoor air quality and can alleviate allergy symptoms.