K9 Mask® for Humans with 'Clean Breathe' Air Filter
The most important K9 Mask® size is the Muzzle Circumference size. If a dog is in between Muzzle Circumference sizes we recommend getting the larger size mask for better panting space in the mask.
- If you do not have a flexible measuring tape you can use a shoe lace or phone charging cable to make your measurements. Then use a ruler or metal measuring tape to get the measurement.
K9 Mask® Size | Muzzle Circumference | Muzzle Length | Breed Examples |
Small |
4.5-6.5 in 11.5-16.5 cm |
1.6-2.8 in 4.0-7.0 cm |
Yorkshire Terrier, Shih Tzu, Miniature Pinscher, Miniature Schnauzer. |
Medium |
7.0-9.0 in 17.5-23.0 cm |
2.8-4.3 in 7-11 cm |
Spaniel, Schnauzer, Fox Terrier, Pinscher. |
Large |
9.0-13.0 in 23.0-33.0 cm |
3.7-4.7 in 9.5-12 cm |
German Shepherd (small), Pointer, Dalmatian, Setter, Labrador, Retriever, Husky. |
Extra Large |
13.0-17.5 in 33.0-45.0 cm |
4.5-5.9 in 11.5-15.0 cm |
German Shepherd (big), Newfoundland, Mastiff. |
FLAT FACED DOGS (Brachycephalic)
We do not currently have K9 Mask® sizes for flat faced (Brachycephalic) dogs like a Pug, Pekingese, or Bulldog. However, we continue our research and development to find solutions for these dog breeds.
- In stock, ready to ship
- Inventory on the way

Protect Yourself From Air Pollution
- Fulfills requirements for face mask mandates during pandemic.
- Comfy, effective, and breathable.
- K9 Mask® for Humans with 'Clean Breathe' Air Filtering.
Clean Breathe Air Filter Features and Benefits:
- Large particle PM10+ filter layer captures dust, ash, lint, and pollen.
- Active Carbon filter layer bonds with air pollution molecules reducing toxins and ozone level air pollution.
- Filters 99% of visible airborne particles.
- Reduces Ozone by 90%.
- Washable mask for freshness.
- Accessorize with our Custom Color K9 Mask® for Dogs.
Size
One Size Fits Most - K9 Mask® for Humans.
How to Use
1. Place mask over your nose and mouth.
2. Secure ear loops around ears.
3. Adjust the top of the mask over the bridge of the nose and cheeks to the shape of your face.
Wash
- Yes, the mask is washable.
- Gently hand wash the inside and outside surface of the mask using a mild soap and water.
- Rinse gently.
- Hang to air dry.
How to Insert the Air Filter into the K9 Mask®.
Open the zipper on the top of the mask. Insert the air filter into mask with the dark side on top and white side on the bottom. Place the curve edge of the filter facing the nose of the mask. Align the air filter inside the mask so all edges of the air filter fit against the sides of the mask. Close the zipper on the mask.
Having trouble inserting the air filter into the K9 Mask? Go to our FAQ page for how to insert air filters video.
How to Secure the K9 Mask® on a Dog's Muzzle to Keep Polluted Air from Being Inhaled.
K9 Masks® are effective when they are worn properly. Using the K9 Mask® muzzle adjustment under the snout of a dog a pet owner is able to adjust the tension on the mask to significantly reduce polluted air from leaking into the mask. This ensures only air passing through the air filter is being inhaled by the dog.
How Do I Train My Dog to Wear the K9 Mask®?
Training your dog to wear the K9 Mask® involves pairing a positive stimulus with wearing the mask.
- Present the mask to your dog and let the dog smell it.
- Try adding a snack treat inside the mask for your dog to sniff and retrieve. This process gives a positive reinforcement about the mask.
- Try putting the mask on your dog’s muzzle for a few seconds, while giving verbal affirmation to your dog, to acclimate it to the mask.
- Repeat this sequence several times, working towards securing the mask in place around the dog’s neck and muzzle using the hook and loop tabs.
- Provide positive verbal feedback to the dog about wearing the mask.
Having trouble getting your dog to wear the K9 Mask? Go to our video: Introducing your dog to the K9 Mask®.
How to Choose the Right Size K9 Mask® for a Dog

- The most important measurement is the Muzzle Circumference size.
- If you do not have a flexible measuring tape, you can use a shoelace or phone charging cable to make your measurements. Then use a ruler or metal measuring tape to get the measurement.
- If your dog is in between Muzzle Circumference sizes, we recommend getting the larger size mask for better panting space in the mask.
K9 Mask® Size | Muzzle Circumference | Muzzle Length |
Small |
4.5-6.5 in 11.5-16.5 cm |
1.6-2.8 in 4.0-7.0 cm |
Medium |
7.0-9.0 in 17.5-23.0 cm |
2.8-4.3 in 7-11 cm |
Large |
9.0-13.0 in 23.0-33.0 cm |
3.7-4.7 in 9.5-12 cm |
Extra Large |
13.0-17.5 in 33.0-45.0 cm |
4.5-5.9 in 11.5-15.0 cm |
SMALL K9 MASK®
- Muzzle Length: 1.6-2.8 inches (4.0-7.0 cm)
- Muzzle Circumference: 4.5-6.5 inches (11.5-16.5 cm)
- Breed Examples: Yorkshire Terrier, Shih Tzu, Miniature Pinscher, Miniature Schnauzer. (Breeds which tend to be too small to wear this size mask: Toy Chihuahua, Brussels Griffon, Papillon.)
MEDIUM K9 MASK®
- Muzzle Length: 2.8-4.3 inches (7-11 cm)
- Muzzle Circumference: 7.0-9.0 inches (17.5-23.0 cm)
- Breed Examples: Spaniel, Schnauzer, Fox Terrier, Pinscher.
LARGE K9 MASK®
- Muzzle Length: 3.7-4.7 inches (9.5-12 cm)
- Muzzle Circumference: 9.0-13.0 inches (23.0-33.0 cm)
- Breed Examples: German Shepherd (small), Pointer, Dalmatian, Setter, Labrador, Retriever, Husky.
EXTRA LARGE K9 MASK®
- Muzzle Length: 4.5-5.9 inches (11.5-15.0 cm)
- Muzzle Circumference: 13.0-17.5 inches (33.0-45.0 cm)
- Breed Examples: German Shepherd (big), Newfoundland, Mastiff.
FLAT FACED DOGS (Brachycephalic)
- We do not currently have K9 Mask® sizes for flat faced (Brachycephalic) dogs like (Pug, Pekingese, Bulldog, etc.). However, we continue our research and development to find solutions for these dog breeds.
Washing the K9 Mask® for Dogs:
Yes, the exterior mask is washable. Dogs tend to slobber when breathing or panting so we designed the K9 Mask to be washable to keep it fresh and clean for long-term use.
The replaceable air filters, which you take in and out of the mask, are NOT washable. Before washing the K9 Mask® remove the air filter.
The exterior mask may be washed in cold water with detergent and then hang to air dry.
Returns & Exchanges:
We have a 30 day return & exchange policy.
Returns to Good Air Team, the name of our company, for a K9 Mask® are available for products sold on the K9mask.com website. If you purchased your K9 Mask® through other retail or online sources you must return the product to the store where it was purchased.
Order Refunds
To be eligible for a refund, your item must be in a similar condition to being new. We know you are going to try it on your dog and dogs are messy. Dogs are fidgety so we understand it might not be 100% perfect when you return it. Please include the original packing slip for your order, or a written note including the order #, about wanting a refund for your purchase. All clearance 'scratch and paw' sales are final. No refunds or exchanges are available for clearance item purchases.
Exchange Size
If you need to exchange a size please return the product with the original packing slip, or a written note including the order #, about the new size you are requesting for exchange.
How to Return Your Product for a Refund or Exchange:
Please include the original packing slip, or a note with your name, order #, and reason for your refund or exchange. If you are requesting an exchange for a size indicate the new size and current shipping address in your note.
You are responsible to pay for the shipping cost of your product for a refund or exchange to our office.
Mail to:
Good Air Team
8911 Bridgewood Trail
Austin, TX 78729
United States
The original order shipping costs are non-refundable. You should consider using a trackable shipping service to verify delivery of the return to our office.
Processing Details
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. If you are approved, then your refund or exchange will be processed. A credit will be applied to your original method of payment within several days for all refunds.
Late or Missing Refunds (if applicable)
If you have not received a refund after returning your purchase please contact us at info@goodairteam.com.
Questions? Call or Text Us.
(877) 364-6275
Questions? Email Us.
Info@goodairteam.com
- 30-Day Return or Exchange
- Global Shipping (tax may apply)
- Free USA Shipping