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


Free shipping on orders over $60

We believe every American should have access to medical-grade, surgical face masks at a great price. Designed, developed, and manufactured at our Texas facility, each mask is rigorously tested for quality and safety.

 Triple-layered, breathable, and lightweight
 Metal nose bridge for secure fit & less glasses fog
 Two-way protection
 Rated at ASTM F2100 Level 3
 Made in America

Armbrust USA Mask Factory

Below are independently verified lab results from the several required tests, in which Armbrust masks returned better margins than required by established standards.

FDA Letter: 510K Approval - Armbrust Surgical Masks

Disposable Face Mask Colors Lab Results (Nelson Labs)

Better Mask High Filtration System Lab Results:

Filtering Facemask Respirator  (AA-1776) Lab Results:

Surgical Mask Lab Results:

Armbrust American is an FDA registered manufacturer, which has taken additional measures to ensure its surgical masks exceed the highest possible safety and quality standards. The company has submitted its masks to third-party testing facility Nelson Labs to receive an ASTM Level 3 rating, the "gold standard," highest practical rating for a mask like this. 


BFE Test ( BFE Test Full Report)

“Bacterial Filtration Efficiency” is a test that shows the amount of bacteria that can get through our masks. Nelson Labs used aerosolized Staphylococcus Aureus to test Armbrust masks, and despite accidentally using nearly 10 times the amount that is usually required for a test like this, they passed with 99.2%+ Efficiency -- well above the ASTM II & III requirements.

BFE Test Results

PFE Test ( PFE Test Full Report)

“Particle Filtration Efficiency” tests the size of particles that can pass through a mask. Armbrust masks were well above the 98% required for ASTM II. It should be noted that a PFE rating of 98% typically blocks most particles down to about 0.3 microns — the Staphylococcus Aureus bacteria used in our BFE test can get as small as 0.1 micron (about the size of the CoronaVirus).

PFE Test

Differential Pressure Test ( Differential Pressure Test Full Report)

This test is used to determine the breathability of Armbrust surgical masks. Sure, you might be able to block viruses, but can you still breath? Even with our higher BFE of 99%+, we passed with much better breathability than normal — in most cases under 4.9 (mm H2O/cm2) versus the requirement of being less than 6.0 (mm H2O/cm2) — also attached.

Differential Pressure Test

Synthetic Blood Penetration Test ( Synthetic Blood Penetration Test Full Report)

This procedure was performed to evaluate surgical face masks and other types of protective clothing materials designed to protect against fluid penetration. The purpose of this procedure is to simulate an arterial spray and evaluate the effectiveness of the test article in protecting the user from possible exposure to blood and other body fluids. All 32 masks tested passed synthetic blood spray at 160 mmHg with no penetration seen. (

Flammability Test ( Flammability Test Full Report)

Meant to ensure that a face mask will not ignite and burn for more than 3.5 seconds. All of our masks burned for less than one second, passing this requirement.

Flammability Test

Cytotoxicity Test ( Cytotoxicity Test Full Report)

Designed to test if people will have a reaction when wearing our masks. On a scale of 0–4, with zero being no reaction and four being a severe reaction, masks that on average hit a 2 or lower pass this test. All of our masks received a grade of 0 and passed.

Cytotoxicity Test


Irritation Intracutaneous Toxicity Test ( Irritation Intracutaneous Toxicity Test Full Report)

"The purpose of the study is to determine the potential irritation effects of the test article extract as a result of an intracutaneous injection in New Zealand White rabbits."

Sensitization Kligman Maximization Test ( Sensitization Kligman Maximization Test Full Report)

"The purpose of the study was to determine the potential allergenic or sensitizing capacity of the test article. The study was used as a procedure for screening of contact allergens in guinea pigs and extrapolating the results to humans, but it does not establish the actual risk of sensitization."

100% satisfaction guarantee.

If you're not satisfied about anything at all, please don't hesitate to reach out to us at - we're here to help!


All Returns MUST begin by emailing: 
(Please include receipt or proof of purchase)

All sales are final with the following exceptions.

30-Day Policy: If 30 days have gone by since your purchase, unfortunately we cannot offer a refund or exchange.

Returns: Customers are responsible for paying all shipping costs for any purchased items they wish to return. We DO NOT issue return shipping labels for returned items.

Eligibility: Your item must be unused and in the same condition and original packaging. Only regular priced items may be refunded. Donation Packs are non-refundable, non-returnable. Receipt or proof of purchase is required to process all returns.

Exchanges: In some instances, items deemed defective or damaged can be replaced or exchanged. For exchanges, email 

There are certain situations where only partial refunds are granted: (if applicable)

  1. Masks with obvious signs of use
  2. Mask packaging that has been opened
  3. Any item not in its original condition, is damaged or missing parts for reasons not due to our error.

Refunds (if applicable)

Once a return is received and inspected, our support team will send a confirmation email as well as a notification on its review status.

If you are approved, a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days (transaction times may vary based on payment method).

Late or missing refunds

First, check your bank account to verify refund has not gone through. Then, contact your bank or credit card company, as it may take some time before your refund is officially posted as processing times may vary. If you’ve done all of this and you still have not received your refund, please contact us at

Customer Reviews

Based on 81 reviews
The “Go To” mask 😷

I’ve been steadily purchasing these mask for myself and family now for a few years. Originally it was just the regular surgical mask now the KN95 and these are hands down the most comfortable and most important to us USA made mask around. ☝🏾👌🏾💯
With the endless trips and waiting I’ve had to do in hospitals for loved ones this is the only mask I trust, period!
It covers my face and with the recent trip I made to buy my very first pair of glasses, absolutely no fogging.
These also help tremendously with my allergies 🤧. I have the fluffiest that you can imagine and when she’s blowing that Akita-mix coat of hers these are seriously a lifesaver & game-changer.
TY 🙏🏾👌🏾👍🏾

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!)

Nancy Shreve
Perfect fit

The mask fits perfectly on your face.

Hi Nancy! We are so happy that you are finding the masks to offer a great fit! Thank you for your support!

James Lanier

We appreciate having these masks to wear

Hi James! We are so happy that you are loving your masks and we appreciate your support!

WOW! Most Comfortable Mask!

This mask is lightweight and so comfortable! The mask has great ear loops and so breathable! It provides KN95 protection and peace of mind!
Highly recommend!

Hi Mary! We are so happy that you are loving the ear loops and breathability of your Made in the USA masks and we appreciate your continued support!


A little confusing with the difference between the black mask and the white mask on specifications. My daughter needed a better rated mask and after contacting customer support I got my answer. Great mask and at least on the white you can see American made.

Hi Pete! We are so happy that you are loving your Made in the USA masks! Thank you for your review & support!


Myself and my family members have/are users of Armbrust face masks. We just love them. With covid acting up again, I ordered more masks for my brother who is temporarily staying in California.

Michael Rosenbaum
Nice mask

The Armbrust flat fold mask seems to of good quality and fits my face very good.

Hi Michael! We are so happy that you are loving the fit and quality of your Flat-Fold Surgical Masks!

Quality Masks

These are good masks! I used to buy KN95s from my local hardware store, but then I did some research and found out that they were likely fraudulent KN95s. I like my Armbrust masks because I can trust that they are genuine N95 masks.

Hi Daniel! Thanks so much for your review! We are so happy that you found us and that you are loving your new masks!