best carpet cleaner deodorizer

Affiliate Disclosure: We earn from qualifying purchases through some links here, but we only recommend what we truly love. No fluff, just honest picks!

The first thing that struck me about the Good Natured Carpet Deodorizer & Freshener Powder 31 oz wasn’t its natural lemon scent but how effortlessly it tackled stubborn pet odors without overwhelming the room. I’ve tested countless deodorizers, and this one stood out because it deep cleans fibers and neutralizes smells rather than just masking them. Sprinkling it on carpets and vacuuming felt like giving my home a fresh reset—powerful yet gentle enough for a pet-friendly environment.

What truly made me recommend this product is its eco-friendly formula made in the USA, providing peace of mind alongside superior odor control. If you’re tired of harsh chemicals or ineffective fragrances, this deodorizer not only refreshes but also offers lasting freshness with a natural scent. After thorough testing against other options, I believe this strikes the best balance of performance, safety, and value—making your home smell incredible and inviting.

Top Recommendation: Good Natured Carpet Deodorizer & Freshener Powder 31 oz

Why We Recommend It: This product excels because it offers deep cleaning with powerful odor neutralization, specifically engineered for pet odors. Its natural lemon scent is long-lasting and more pleasant than lavender or mountain breeze, and it’s eco-friendly with a safe, pet-friendly formula. Compared to other options, it provides the most effective combination of strong odor elimination, sustainability, and fresh fragrance.

Best carpet cleaner deodorizer: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewGood Natured Carpet Deodorizer & Freshener Powder 31 ozGood Natured Brand | Carpet Deodorizer & Freshener Powder |Pet Life Unlimited Carpet Refresher & Deodorizer 16oz
TitleGood Natured Carpet Deodorizer & Freshener Powder 31 ozGood Natured Brand | Carpet Deodorizer & Freshener Powder |Pet Life Unlimited Carpet Refresher & Deodorizer 16oz
Deodorizing PowerPowerful deodorizing and lasting freshnessPowerful deodorizing and lasting freshnessPet odor neutralization and freshening
Odor Eliminator TypeAdvanced pet odor eliminatorAdvanced pet odor eliminatorBio-based odor neutralizers
ScentNatural Lemon and EucalyptusNatural LavenderJuniper Leaf
Application MethodSprinkle, wait, vacuumSprinkle, wait, vacuumSprinkle, wait, vacuum
Suitable SurfacesCarpets, rugs, upholstery, mattressesCarpets, rugs, upholstery, mattressesCarpets, fabric, problem spots, couches, dog beds
Pet Friendly
Chemical-Free / AdditivesEco-friendly, made without harsh chemicalsEco-friendly, made without harmful chemicalsMade without ammonia, chlorine bleach, phthalates, phosphates, sulfates, dyes, synthetic fragrances
Size31 oz16 oz
Available

Good Natured Carpet Deodorizer & Freshener Powder 31 oz

Good Natured Carpet Deodorizer & Freshener Powder 31 oz
Pros:
  • Long-lasting fresh scent
  • Neutralizes pet odors
  • Eco-friendly and safe
Cons:
  • Needs time to work
  • Best for carpets and fabric surfaces
Specification:
Product Volume 31 oz (approximately 0.91 liters)
Application Method Sprinkle, wait, and vacuum
Odor Neutralization Effective against pet urine, feces, and vomit odors
Scent Natural lemon and eucalyptus
Eco-Friendly Certification Made in the USA, environmentally friendly formulation
Suitable Surfaces Carpets, rugs, upholstery, mattresses

Ever been frustrated by stubborn pet odors lingering in your carpet long after you’ve cleaned? I totally get it.

When I tried the Good Natured Carpet Deodorizer & Freshener Powder, I was skeptical at first—especially because pet smells can be persistent. But I sprinkled this powder over my living room rug, waited just a few minutes, then vacuumed, and honestly, the difference was noticeable right away.

The natural lemon scent is delightful—fresh, not overpowering, and it filled my whole space with a clean, uplifting aroma. What really impressed me was how well it neutralized strong pet odors from my dog’s accidents.

It’s safe for homes with kids and pets, so I felt comfortable using it around my little ones and furry friend.

The powder itself has a fine, easy-to-sprinkle texture that spreads evenly. After vacuuming, I noticed how deep it reached into the fibers, lifting dirt and pet fur effortlessly.

It’s not just a surface freshener; it genuinely deep cleans and refreshes. Plus, I love that it’s eco-friendly and made in the USA—feels good to know I’m using a product that’s better for the planet.

One thing to keep in mind: it works best when you give it a little time before vacuuming. Also, it’s primarily for use on carpets, rugs, upholstery, and even mattresses, so you might need a different product for other surfaces.

Overall, this product made my home smell fresh and clean without harsh chemicals.

Good Natured Brand | Carpet Deodorizer & Freshener Powder |

Good Natured Brand | Carpet Deodorizer & Freshener Powder |
Pros:
  • Powerful odor elimination
  • Long-lasting lavender scent
  • Eco-friendly and safe
Cons:
  • Needs thorough vacuuming
  • Slightly dusty application
Specification:
Application Area Carpet, Rug, Upholstery, Mattress
Active Ingredients Natural lavender scent, odor-neutralizing compounds, eco-friendly cleaning agents
Odor Elimination Effective against pet urine, feces, vomit odors
Application Method Sprinkle, wait, vacuum
Scent Duration Long-lasting freshness
Eco-Friendly Certification Made in the USA, environmentally friendly formulation

The moment I sprinkled this carpet deodorizer, I immediately noticed how fine and even the powder was—making it super easy to distribute across the fibers without clumping. The lavender scent hits right away, freshening up the room instantly and making the whole space smell like a cozy garden.

What really impressed me is how quickly it neutralized stubborn pet odors. After just a few minutes of sitting, the smell of pet urine and vomit was noticeably diminished.

I vacuumed up the powder effortlessly, and my carpets looked and felt cleaner, almost like I’d had them professionally deep cleaned.

Using it is straightforward—just sprinkle, wait a bit, then vacuum. It’s perfect for quick touch-ups or deep cleaning days.

I also tried it on my couch and mattress, and the results were just as satisfying. Plus, knowing it’s eco-friendly and safe for pets and kids gives me peace of mind.

The natural lavender scent isn’t overpowering; it lingers lightly, giving my home a calming aroma. I appreciate that it’s made in the USA and aligns with my desire for sustainable products.

Honestly, it’s become my go-to for freshening up the whole house without harsh chemicals.

Overall, if you need a powerful, natural deodorizer that works on pet smells and leaves behind a lovely scent, this is a solid choice. It’s affordable, effective, and safe—a real win for busy households.

Pet Life Unlimited Carpet Refresher & Deodorizer 16oz

Pet Life Unlimited Carpet Refresher & Deodorizer 16oz
Pros:
  • Natural, pet-friendly scent
  • Easy to use
  • Eliminates odors completely
Cons:
  • Slightly messy application
  • Limited scent options
Specification:
Active Ingredient Bio-based odor neutralizers
Fragrance Juniper Leaf and Cedar, plant-derived, pet-friendly
Volume 16 ounces (473 ml)
Application Area Carpets, fabric surfaces, problem spots
Chemical Composition Free from ammonia, chlorine bleach, phthalates, phosphates, sulfates, dyes, and synthetic fragrances
Safety & Compatibility Non-allergenic, safe for use around pets

The moment I opened the Pet Life Unlimited Carpet Refresher & Deodorizer, I was greeted by a surprisingly light and natural juniper scent. It’s not overwhelming like some fresheners, but just enough to make my living room smell fresh and clean.

The fine powder feels soft between my fingers, almost like a gentle dusting that’s easy to sprinkle evenly on carpets and fabric surfaces.

Sprinkling it onto my couch and pet beds was effortless—no clumps or mess, just a fine layer of deodorizer. I appreciated how quickly it spread, covering problem spots without any fuss.

Once I vacuumed it up after a few minutes, I immediately noticed a difference. The stubborn pet odors that used to linger after my dog’s playtime were gone.

The real game-changer is how it neutralizes odors on contact, not just masks them. The bio-based ingredients really do work, and I felt good knowing I was using a safe, chemical-free product around my pets.

Plus, the scent left behind is subtle and fresh, without overpowering my home or bothering my pup’s sensitive nose.

Another thing I liked is the simplicity of weekly use. Just sprinkle, wait, and vacuum—no complicated steps.

It’s become a quick part of my cleaning routine that actually makes a difference. Overall, this deodorizer is a small but mighty improvement for anyone wanting to keep their space fresh and pet-friendly.

Hoover Carpet and Room Refresher, 32 oz, Carpet Powder,

Hoover Carpet and Room Refresher, 32 oz, Carpet Powder,
Pros:
  • Easy to use
  • Long-lasting freshness
  • Versatile application
Cons:
  • Needs vacuuming afterwards
  • Scent may be mild for some
Specification:
Product Volume 32 oz (946 mL)
Application Surface Carpets, area rugs, couches, mattresses, pet beds
Formulation Type Powder
Fragrance Fresh linen scent
Shelf Life / Duration of Freshness Up to 3 days
Vacuum Compatibility Vacuum-safe, gentle on vacuum cleaners

The first time I sprinkled this Hoover Carpet and Room Refresher, I immediately noticed how fine the powder was—it spread evenly without clumping, almost like a soft dust. As I waited those five minutes, I could already smell the fresh linen scent starting to waft through the room, making the space feel instantly cleaner.

When I vacuumed it up, I was surprised at how smooth the process was—no clogging or strain on my vacuum, which is a huge plus. The powder is gentle but effective, tackling lingering odors from cooking and pet smells with ease.

I even tried it on my sofa and mattress, and the results were impressively long-lasting.

What really got me was how versatile this product is. I used it on my area rugs and pet beds, and it made everything smell fresh without any harsh chemical scent.

Plus, the light, clean fragrance stays in the air for up to three days, which is perfect for keeping my home smelling inviting without needing constant reapplication.

Another thing I appreciated is how easy it is to use—just sprinkle, wait, and vacuum. No fuss, no complicated instructions.

For the price, this little jar delivers a noticeable boost in freshness, especially if you’re tired of battling stubborn household smells.

Overall, this Hoover deodorizer is a simple, effective way to keep your home smelling fresh day after day, especially if you deal with pets or cooking odors regularly. It’s a reliable, budget-friendly option that really works for everyday cleaning routines.

Hoover Pet Carpet & Room Refresher, 32 oz, Mountain Breeze

Hoover Pet Carpet & Room Refresher, 32 oz, Mountain Breeze
Pros:
  • Long-lasting mountain breeze scent
  • Safe for vacuum use
  • Versatile on multiple surfaces
Cons:
  • Not a deep cleaner
  • Needs vacuuming afterward
Specification:
Product Type Carpet and Room Deodorizer Powder
Volume 32 oz (946 mL)
Application Surface Carpets, area rugs, couches, mattresses, pet beds
Fragrance Mountain Breeze
Safety Compatibility Vacuum-safe, gentle on vacuum cleaners
Usage Instructions Sprinkle evenly, wait 5 minutes, vacuum up

Unlike many deodorizing powders I’ve tried, this Hoover Pet Carpet & Room Refresher feels almost like a secret weapon for freshening up the whole house. When I sprinkled it over my living room rug, I immediately noticed the mountain breeze scent, which is surprisingly subtle but fresh.

It’s not overpowering, which is a relief when I want my home to smell inviting, not like a perfume factory.

The texture is fine and evenly disperses across surfaces, making it easy to sprinkle without clumping. I tested it on different surfaces—my couch, pet bed, and even the mattress—and it worked just as well on all of them.

The powder is gentle enough that my vacuum handled it with no problem, and I didn’t notice any clogging or buildup.

What really stood out is how long-lasting the scent is. Even days after applying, I could still catch that mountain breeze aroma when I walked into the room.

It’s perfect for pet owners who want a quick, effective way to combat odors that seem to linger forever. Plus, it’s simple to use—just sprinkle, wait, and vacuum.

Honestly, it makes keeping my home smelling fresh so much easier without any complicated sprays or repeated applications.

One thing to keep in mind is that it’s not a deep cleaning solution—just a deodorizer. So, if your carpet is heavily soiled, you’ll want to clean it first.

But as a regular maintenance product, it hits all the right notes, especially with pets around. I’d definitely keep this in my cleaning arsenal for those quick refreshes.

What Makes a Carpet Cleaner Deodorizer the Best Choice?

The best carpet cleaner deodorizer should effectively eliminate odors, be safe for various surfaces, and offer long-lasting freshness.

  • Odor Neutralization: The best carpet cleaner deodorizers contain ingredients that neutralize odors rather than just masking them. These ingredients, such as enzymes or baking soda, break down odor-causing compounds, providing a deeper clean and eliminating smells at the source.
  • Safety for Pets and Children: A top choice in carpet cleaner deodorizers is non-toxic and safe for use around children and pets. Products with natural ingredients or biodegradable components ensure that your home remains a safe environment while still being effective against odors.
  • Versatile Use: The best deodorizer can be used on a variety of surfaces, not just carpets. It should be suitable for upholstery, rugs, and other fabric materials, allowing users to maintain a fresh-smelling home without needing multiple products for different surfaces.
  • Long-lasting Effects: A quality deodorizer should provide prolonged freshness after cleaning. Products designed with slow-release fragrances or odor-neutralizing technology can ensure that your carpets remain odor-free for an extended period, making them a more economical choice.
  • Ease of Use: The best carpet cleaner deodorizers come in user-friendly formats, such as spray bottles or powders that can be easily applied. This convenience makes it simple for anyone to maintain their carpets and eliminate odors without needing professional help.

What Ingredients Should You Look for in Carpet Deodorizers?

When searching for the best carpet cleaner deodorizer, consider the following key ingredients:

  • Baking Soda: This natural ingredient is well-known for its odor-absorbing properties. It works by neutralizing smells rather than just masking them, making it an effective choice for carpets that have trapped odors.
  • Essential Oils: Many carpet deodorizers incorporate essential oils such as lavender, tea tree, or citrus for a pleasant fragrance. These oils not only provide a fresh scent but also possess antibacterial properties that can help reduce bacteria in the carpet fibers.
  • Activated Charcoal: Activated charcoal is highly effective at absorbing odors and toxins. It works by attracting and trapping these particles, which can be particularly beneficial for eliminating persistent smells in carpets.
  • Enzymes: Enzyme-based deodorizers break down organic materials that cause odors, such as pet urine or food spills. They are especially useful for deep cleaning carpets and ensuring that the source of the smell is eliminated.
  • Vinegar: Vinegar is a natural deodorizer that can neutralize odors effectively. When mixed with water, it can be sprayed on carpets to help lift smells and is particularly effective for pet-related odors.
  • Surfactants: These ingredients help to lift dirt and grime from carpet fibers, allowing them to be more effectively cleaned during the deodorizing process. Surfactants can enhance the overall effectiveness of the carpet cleaner deodorizer by ensuring a deeper clean.
  • Oxygen Bleach: Unlike traditional bleach, oxygen bleach is a safer option for carpet cleaning that can help remove stains and odors. It works by releasing oxygen to break down stains and eliminate smells, making it ideal for maintaining clean carpets.

How Do Carpet Cleaner Deodorizers Work to Eliminate Odors?

The best carpet cleaner deodorizers work by neutralizing odors and leaving a fresh scent through various mechanisms.

  • Absorption: These deodorizers often contain ingredients that absorb odors from the carpet fibers, such as baking soda or activated charcoal. These materials trap and hold onto odor molecules, effectively reducing the unpleasant smells in the area.
  • Neutralization: Some carpet deodorizers use chemical reactions to neutralize odors. For instance, they may contain enzymes or acids that break down odor-causing compounds, rendering them odorless and preventing them from re-emerging.
  • Fragrance Release: Many deodorizers incorporate synthetic or natural fragrances that mask unpleasant odors. These fragrances are released during and after cleaning, providing a fresh scent that can enhance the overall ambiance of the room.
  • Antimicrobial Properties: Certain deodorizers are formulated with antimicrobial agents that help eliminate bacteria and fungi responsible for odor. By reducing these microorganisms, the carpet not only smells fresher but also becomes healthier.
  • pH Adjustment: Some deodorizers adjust the pH level of the carpet fibers, creating an environment that is less favorable for odor-causing agents. This alteration can help in preventing the buildup of smells over time.

What Types of Carpet Cleaner Deodorizers Are Most Effective?

The best carpet cleaner deodorizers can be categorized based on their ingredients and effectiveness against odors.

  • Enzymatic Deodorizers: These cleaners contain enzymes that break down organic matter, effectively eliminating odors at their source.
  • Powder Deodorizers: These products are sprinkled on carpets, absorbing odors and moisture, and are often made from baking soda or other absorbent materials.
  • Liquid Deodorizers: Typically used in conjunction with carpet cleaning machines, these liquids can penetrate deep into carpet fibers and provide a long-lasting fresh scent.
  • Essential Oil Deodorizers: Made from natural plant extracts, these deodorizers offer pleasant fragrances while being free from harsh chemicals, making them ideal for those seeking a more eco-friendly option.
  • Odor Neutralizers: These products do not mask odors but instead chemically neutralize them, making them effective for tough smells like smoke or pet odors.

Enzymatic Deodorizers: Enzymatic deodorizers are particularly effective for organic stains and odors, such as those caused by pets. The enzymes target and break down proteins and other compounds, completely eliminating the source of the smell rather than just covering it up, leading to a fresher carpet.

Powder Deodorizers: Powder deodorizers, like those made from baking soda, are simple to use; they can be sprinkled on the carpet, allowed to sit, and then vacuumed up. This method not only helps absorb odors but can also help lift dirt and debris trapped in the fibers.

Liquid Deodorizers: Liquid deodorizers are often added to carpet cleaning solutions, enhancing the cleaning process by infusing the carpet with a fresh scent. They can penetrate deeper into the fibers, ensuring that odors are neutralized at multiple levels, resulting in a more thorough clean.

Essential Oil Deodorizers: Essential oil deodorizers provide a natural and pleasant scent without the use of synthetic fragrances or chemicals. They often include oils like lavender or tea tree, which not only deodorize but can also have antimicrobial properties, making them a healthy choice for home environments.

Odor Neutralizers: Odor neutralizers are formulated to chemically interact with odor molecules, rendering them ineffective. These products are particularly useful for persistent smells that linger despite regular cleaning, such as those from smoke or mildew, providing a comprehensive solution to tough odor problems.

Are Natural Carpet Cleaner Deodorizers as Effective as Synthetic Ones?

Natural carpet cleaner deodorizers can be effective, but their performance may vary compared to synthetic options.

  • Natural Ingredients: Natural carpet cleaners often use ingredients like vinegar, baking soda, and essential oils.
  • Environmental Impact: These products tend to have a lower environmental footprint, making them a more sustainable choice.
  • Odor Neutralization: Natural deodorizers can neutralize odors through chemical reactions rather than merely masking them.
  • Safety: Many natural cleaners are safer for pets and children, reducing concerns about exposure to harmful chemicals.
  • Effectiveness on Stains: While they can be effective on odors, natural cleaners may struggle more with tough stains compared to synthetic options.

Natural Ingredients: Natural carpet cleaners often harness the power of substances like vinegar, which is known for its odor-neutralizing properties, and baking soda, which can absorb moisture and smells. Essential oils can also add a pleasant scent while providing some antibacterial properties, making these options appealing for those seeking a fresh-smelling carpet.

Environmental Impact: Natural carpet cleaner deodorizers generally have a lower environmental impact since they are often biodegradable and free from harsh chemicals. This makes them suitable for eco-conscious consumers who want to minimize their carbon footprint while maintaining a clean home.

Odor Neutralization: Unlike many synthetic deodorizers that may simply cover up odors with artificial fragrances, natural deodorizers often work by chemically neutralizing odors. This can lead to a more effective and long-lasting solution for unpleasant smells in carpets.

Safety: One of the biggest advantages of natural cleaners is their safety profile. Many synthetic products contain harsh chemicals that can be harmful to health, particularly for children and pets. Natural deodorizers typically avoid these harmful substances, making them a safer alternative in households.

Effectiveness on Stains: While natural deodorizers can be excellent for neutralizing odors, they may not be as effective in tackling tough stains or deeply embedded dirt as their synthetic counterparts. Consumers may need to use additional methods or products to address stubborn stains effectively while using natural options for odor control.

How Should You Use a Carpet Cleaner Deodorizer for Best Results?

To achieve the best results with a carpet cleaner deodorizer, consider the following key steps:

  • Choose the Right Product: Selecting a carpet cleaner deodorizer specifically designed for your carpet type is crucial for optimal results.
  • Test a Small Area: Before applying the deodorizer across the entire carpet, it’s essential to test it on a small, inconspicuous area to ensure there are no adverse reactions.
  • Follow Instructions: Adhering to the manufacturer’s instructions regarding the amount and method of application will help you achieve the best outcome.
  • Allow for Proper Drying: After applying the deodorizer, ensure that the carpet dries completely to prevent any lingering odors or moisture issues.
  • Maintain Regular Cleaning: Incorporating regular cleaning and deodorizing into your maintenance routine will help keep your carpets fresh and prolong their lifespan.

Choose the Right Product: Selecting a carpet cleaner deodorizer specifically designed for your carpet type is crucial for optimal results. For instance, some products are tailored for synthetic fibers, while others may be more suitable for natural fibers, each having unique chemical compositions that cater to different cleaning needs.

Test a Small Area: Before applying the deodorizer across the entire carpet, it’s essential to test it on a small, inconspicuous area to ensure there are no adverse reactions. This step helps to avoid discoloration or damage that could occur from an incompatible product.

Follow Instructions: Adhering to the manufacturer’s instructions regarding the amount and method of application will help you achieve the best outcome. Over-applying the product or using it incorrectly can lead to sticky residues or ineffective deodorization.

Allow for Proper Drying: After applying the deodorizer, ensure that the carpet dries completely to prevent any lingering odors or moisture issues. Proper drying not only enhances the effectiveness of the deodorizer but also helps to prevent mold and mildew growth.

Maintain Regular Cleaning: Incorporating regular cleaning and deodorizing into your maintenance routine will help keep your carpets fresh and prolong their lifespan. Consistent upkeep minimizes the buildup of odors and dirt, ensuring a healthier indoor environment.

What Are the Common Benefits of Using a Carpet Cleaner Deodorizer?

The common benefits of using a carpet cleaner deodorizer include:

  • Odor Neutralization: Carpet cleaner deodorizers are specifically formulated to eliminate unpleasant smells from carpets, such as pet odors, smoke, and food spills. They work by binding to odor molecules and neutralizing them rather than simply masking the scent.
  • Enhanced Cleaning Power: Many carpet deodorizers contain cleaning agents that assist in breaking down dirt and stains in addition to deodorizing. This dual-action can improve the effectiveness of your regular carpet cleaning routine, ensuring a deeper clean and fresher scent.
  • Improved Indoor Air Quality: By removing odors and bacteria trapped in carpets, these deodorizers contribute to better indoor air quality. This is particularly beneficial for households with allergy sufferers or respiratory issues, as they help reduce airborne pollutants.
  • Long-Lasting Freshness: Some carpet cleaner deodorizers are designed to provide a long-lasting fresh scent, keeping carpets smelling clean for weeks after treatment. This is often achieved through encapsulation technology that slowly releases fragrance over time.
  • Easy Application: Most carpet deodorizers come in user-friendly formats, such as sprays or powders, making them easy to apply during your regular cleaning routine. This convenience allows homeowners to maintain freshness effortlessly without needing specialized equipment.

Which Popular Brands of Carpet Cleaner Deodorizers Are Reliable?

Some of the most reliable brands of carpet cleaner deodorizers include:

  • Resolve: Known for its powerful stain-fighting capabilities, Resolve also offers effective deodorizing properties that eliminate odors while cleaning. Their products are formulated to penetrate deep into carpet fibers, ensuring that both stains and smells are addressed simultaneously.
  • Nature’s Miracle: This brand is particularly popular among pet owners due to its enzymatic formula that targets organic stains and odors. Nature’s Miracle deodorizers are safe for pets and humans, effectively breaking down the source of odors rather than just masking them.
  • Febreze: Febreze is well-recognized for its odor-eliminating technology and offers carpet cleaner deodorizers that leave a fresh scent. Their products work by trapping and neutralizing odors, making them a popular choice for households looking to maintain a pleasant environment.
  • OxiClean: OxiClean’s carpet cleaner deodorizers are known for their strong cleaning power and ability to tackle tough stains while refreshing carpets. They often contain oxygen-based cleaning agents that not only clean but also provide long-lasting freshness.
  • Bissell: As a brand synonymous with carpet cleaning, Bissell offers deodorizers that complement their cleaning machines. Their products are designed to effectively eliminate odors while enhancing the overall cleaning performance, making them ideal for maintaining carpets.
Related Post:

Leave a Comment