USA-Made Flat-Fold Surgical Masks (510k)



The worlds most popular mask shape 
is finally being held to an American standard.

Throughout the pandemic we tested hundreds of our competitors KN95 masks to see if they actually protected people. The manufacturers of these unregulated respirators love to make all sorts of claims -- especially that they are "made in FDA-Registered facilities," which is meaningless since the FDA doesn't regulate KN95s.

The Chinese GB-2626 KN95 standard is good, but since it's a foreign standard it lacks any kind of regulatory oversight. And, our hundreds of tests prove that many foreign made KN95 masks are making claims they can not back-up, too.  

Your health is too important to leave to chance. At Armbrust American, we hold ourselves to a higher standard.

The Best of Both Worlds

When done right, the flat-fold KN95-style respirators provide a better seal than a traditional 3-ply surgical masks, which is why we've decided to combine the best of both worlds and make ourselves accountable across the board.

Our Armbrust USA-KN95 is an FDA-cleared surgical mask, a 510k mask with the improved fit/seal provided by the KN95 shape.

Designed, developed, and manufactured in our American facilities, each mask is rigorously tested for quality and safety.

Our cutting edge, beyond clean facilities are working at full speed around the clock to produce these regulated, and damn-near perfect masks.

(Need smaller size? Check out our Kids KN95 Masks.)

(Want different color options? Click here for American Made KN95 Masks.)  


✓ 5 Layers of protection, breathable, and lightweight
✓ Metal nose bridge for secure fit & less glasses fog
✓ Two-way protection
✓ FDA-Cleared 

✓ Rated at ASTM F2100 Level 3 (Lab Results)
✓ Made in America 
Free Shipping

Intended Use:

This device is intended to be worn to protect both patients and healthcare personnel from transfer of microorganisms, body fluids, and particulate material. It is intended for use in infection control practices to reduce the potential exposure to blood and body fluids. This is a single-use, disposable device that is provided non-sterile.

Do Not Use For:

Toxic gases, vapors, oil based aerosols, asbestos, arsenic, cadmium, lead, methylene dianiline (MDA) or CM any other airborne substance where concentrations exceed OSHA standards, or applicable government regulations, whichever is lower.


This device does not provide oxygen. This is a single use device and should be disposed of properly after it is worn.


These masks should be stored in a cool, dry place. Avoid excessive heat above 140 F.

How to wear

Customer Reviews

Based on 54 reviews
john gray
A Good Fit and No Breaking Straps

A tad tight for this large head but still comfortable and secure. The duck bill straps on another model were breaking like crazy so now I feel a lot more secure when I go out.
Great customer service! Lloyd Armbrust, manufacturer and owner helped me get the right masks. After two or more years of fumbling around, I finally feel more secure.
Made in the USA as well!

Thank you so very much for your review and support!

Judy Roush
Armbrust Flat-fold Surgical Mask

My Hungarian Puli and I are a pet therapy team at our local medical center. Covid, RSV, and Flu cases are on the rise - so much so that I debated taking a "vacation" from volunteering with patients until the numbers once again begin to subside; however, because these masks have a greater than, or equal to, 98% filtration rate, I decided we would continue visiting patients. I have been wearing Armbrust masks since the beginning of Covid and I have not contracted the virus! So, we will continue volunteering, taking all possible precautions, and putting our trust in Armbrust masks! BTW, I don't have a photo of me in a mask but I will share a photo of my certified therapy dog! She wants to know when Armbrust will start making masks for therapy dogs?!!!! (Just kidding!)

Be Safe.

Your masks are the best and your customer service the greatest, recommend them and I will keep buying more, wishing you all a Healthy, Happy and Prosperous 2023, BLESSINGS from Our Lord.

Bill Moughan
Workout masks

Love these masks. Hard to believe they are effective. I've tried so many masks in the gym over the last 2 years and these are easily the easiest to breath in. Be nice if you offered them in a few different colors))

We are glad you are finding the mask breathable!

It is our pleasure to provide folks with masks that are both supremely breathable and supremely protective; all-in-one!

Great mask

Great mask and fits like a glove

Thank you for your review!

Glad to hear the fit is perfect.

Jeff Holtzman
Excellent Product

Quality mask with the bonus of being American made. I would like to know why the masks need individual plastic wrapping. Seems like a waste.

Thank you for your review!

Great question. The individual wrapping is a feature of our masks now to allow both medical professionals and every-day users of our masks to know that their mask is truly sterile. You can rest assured as long as your masks are sealed that there will never be any cross-contamination with any of our masks!

5 STAR Mask!!

These masks are great fitting and very comfortable. I plan to buy a lot more of these Armbrust masks. 5 STARS!!

Thank you so much for your support!

Most comfortable

These are the most comfortable masks I've ever worn! They are handy to being my purse or a coat pocket. I love them!

Thank you for your review!

We are happy to hear our masks give you the comfort you want with protection we all need! Their sizing definitely makes them handy for coat pocket and purse storage as well, so we are glad you are taking advantage.

NaTasha G.
Always a great product

The staff in my department love these masks. There are no complaints when they have to wear them all day. The fun colors are an extra bonus.

We really appreciate your support and are happy to make protective surgical-grade masks with color!

Terry Sargent
Great product

Like the verification of the quality of your product. Any more of my mask needs will be with this company.