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B300 N99 Certificate 1

B300 N99 Mask (12 Pack) Disposable Respirator

n99 mask

B300 N99 Mask (12 Pack) Disposable Respirator


In stock


Maximum Rated N99 Mask for Respiratory Protection


In Stock, Ships Within 24 Business Hours or Sooner!  

SKU: B300
GTIN: 850007050061
MPN: TC-84A-3907
Brand: Bielcor
USPS Priority Mail (2-Day FREE Shipping) Limit 4 Per Order

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Bielcor N99 Mask

  • NIOSH-approved N99 mask
  • 99% filter efficiency against non-oil-based particles
  • The nose bridge design reduces the adjustment needed to guarantee a proper fit
  • It will accommodate most face shapes and sizes and is compatible with most eyewear
  • Electrostatic non-woven polypropylene polyester fibers assure relaxed breathing and adequate filtration
  • The latex-free hypoallergenic design prevents skin irritation; the rigid outer shell prevents mask collapse in work environments
  • Staple attached headbands assure a comfortable fit to the face
  • Lightweight construction reduces the difficulty and enables extended wear while working extended hours
  • The soft inner lining ensures comfort; the form-fitted design matches facial contours to minimize pressure points
  • Packaged to retain the quality of the product in a work atmosphere
  • Masks are all bagged into an open-ended single plastic sleeve to protect from contamination when the box is opened
  • This package contains 12 constructed cup face masks
  • Conforms to CFR part 84, N99 class
  • NIOSH approval number, TC-84A-3907

Provides Maximum Respiratory Protection

Protection You Can Count On

Our official N99 respirator mask is certified and approved by the National Institute for Occupational Safety (NIOSH) and the US Centers for Disease Control. In addition, B300 particulate respirators are tested and proven to block ultra-fine particles as tiny as 0.3 microns.


B300 Disposable respirator face masks maximum protection, reliability, and comfort. They are designed and manufactured to fit perfectly as stand-alone personal protective equipment for civilians, professionals, and commercial workers. Masks are compatible with other protective equipment, including ear muffs, earplugs, safety glasses, goggles, helmets, and hard hats. The B300 offers top-rated defense for everyday virus protection and daily work on construction sites in hobby rooms, workshops, and for emergency response in wildfire areas. Disaster cleanup situations or entering storms with water-damaged homes.


The Bielcor N99 combines the best of functionality and wearability. Breathe easily, safely, and maintain maximum utility so that you get the job done right, with the confidence you are breathing full breaths of fresh, clean air. A flexible nosepiece ensures a custom seal for comfort and effectiveness. The latex-free approved head strap design ensures your mask stays in place and keeps your hands free for everything else. The soft material is kind to your skin. While the exhalation valve keeps you cool and breathing easily. Trust the B300 N99 mask to protect your lungs and health, wherever you are, and no matter what is happening around you.

Affordable Safety

At just around $1 per mask, Bielcor disposable respirator masks offer the ideal balance of safety and affordability. It would be best if you never had to choose between health and your budget. Convenient packs of 12 masks fit nearly everywhere. Please keep them in your car, office, and job site, in your hand luggage for traveling. Never go without a clean, properly functioning mask again. In addition, PPE (Personal Protective Equipment), including the N99 mask, has recently been reclassified by the IRS as qualified medical expenses for tax deductions. Be sure to consult with your tax preparer or accountant for details and savings.

Money-Back Guarantee

We believe in our masks. They fit, they work, and you’ll love them. In addition, every pack of N99 masks from Bielcor is backed with our 30-Day Money-Back Guarantee.


n99 mask


The Superior Protection of the N99 Mask

Reliable, cost-effective protection you can count on


Frequently Asked Questions


Are N99 Masks Washable?

According to approved practices, the B300 N99 mask can be worn again if sterilized. However, these masks are designed to be affordable, disposable respirator masks, which you can afford to change regularly.

Is the N99 Dust Mask Better Than the N95?

An N95 mask is approved as a surgical level mask as cleared by NIOSH. The N95 removes 95% of airborne particles. The N99 Mask is tested to even higher standards and must remove 99% non-oil-based particles from the air you breathe. In comparison, the N99 mask offers even greater protection.

Comparing N95, KN95, and FFP2 Respirator Masks

The difference between the N95, KN95, and FFP2 respirator masks is the country regulating and approving testing and performance standards. N95 is the basic and recommended standard for protecting healthcare workers in the United States and protecting against viruses like COVID-19. The KN95 applies in China and the FFP2 is used in Europe. These are similar yet different in airflow, particle filtration, and testing requirements. The N99 is a step-up in protection. It is the equivalent of the FFP3 in Europe.

Where Can I Buy N99 Masks?

To protect you from counterfeit masks in the marketplace, you should buy your official, stamped, and Certified N99 masks directly from Bielcor.


Order The Best Face Mask Protection Right Now…



Additional information

Weight 9.30 oz
Dimensions 8.5 × 5.5 × 5.5 in
Mask Weight

0.35 oz

Mask Dimension

5.5 x 6.0 x 2.00 in


Polypropylene, Plastic and Metal




Adult one size fits all

Approval Number




Filter Efficiency

N99 – 99% N for not resistant to oil


12 per box





117 reviews for B300 N99 Mask (12 Pack) Disposable Respirator

  1. 5 out of 5

    Shannon Rogers

    These are awesome for around the house or even in the garden

  2. 5 out of 5

    Jessica Storts

    Definitely ordering more and keeping them in the house forever!

  3. 5 out of 5

    Christina (verified owner)

    I have worn these mask for the last 2 years on a daily 8hr basis. They have been the best as far as comfort and quality. The headstraps actually last unlike other brands. Also I feel a great level of safety with the N99, so far has worked for me.

  4. 4 out of 5

    Brittany (store manager)

    Good value

  5. 4 out of 5

    Juan (store manager)

    Además de cómodos lógó rópido !!!!

  6. 4 out of 5

    Stephend (store manager)

    Good price!

  7. 4 out of 5

    Leo (store manager)

    Worked as saud

  8. 4 out of 5

    Thomas (store manager)

    These masks seem to be adequate and well priced..

  9. 4 out of 5

    Joshua (store manager)

    Practical & comfortable

  10. 4 out of 5

    Dr.William (store manager)


  11. 4 out of 5

    Vicky (store manager)

    it took way to long for masks to get here

  12. 4 out of 5

    Paul (store manager)

    I’d rather not need them but such is life. They do the job without being expensive.

  13. 4 out of 5

    Lisa (store manager)

    Item S Discover.Fits Good..Comfortable and Good Protection.Very Lightweight.
    Moy Second Order With Exact Seller. Satisfied Again..Thanks

  14. 4 out of 5

    Sebastian (store manager)

    Fast delivery and good deal. Just the mask handle needs to be more stronger.

  15. 4 out of 5

    Luis (store manager)

    Buen producto

  16. 4 out of 5

    John (store manager)

    Speedy delivery and quality.

  17. 4 out of 5

    Zoey (store manager)

    It took around 4 weeks for me to get them. It works fine! I’m glad I got it to protect me against the careless people.

  18. 5 out of 5

    Akon (store manager)

    Very, very good product.

  19. 4 out of 5

    Kinsley (store manager)

    My first order of these was great. My second order was not so great. I wear eyeglasses, and need to pinch that around the top of my nose, to keep my eyeglasses from fogging up from my warm breath. I noticed the price has gone way down. I would rather pay the higher price, and have the better product.

  20. 5 out of 5

    Serenity (store manager)

    great masks for doctor office

  21. 4 out of 5

    Olivia (store manager)

    Take a bit longer but at least I can track the package and received it today via USPS.Thanks

  22. 5 out of 5

    Emery (store manager)


  23. 5 out of 5

    Mia (store manager)

    Easy to use, and the price was good.

  24. 5 out of 5

    Eva Zawadzki (store manager)

    Purchased this for the construction workers working on my home. I also find these useful to use myself when working outside cleaning out dry garden beds. With the dust from the workers, I am able to be outside and not be bothered. This box of masks has come in handy for me and professionals.

  25. 5 out of 5

    Vivian (store manager)

    ok product

  26. 4 out of 5

    Madelyn (store manager)

    These arrived very nicely packaged and sealed with a certificate telling where and what they were made. The masks are of good quality and all of the strings are firmly attached.

  27. 5 out of 5

    Nevaeh (store manager)

    Nice comfort

  28. 5 out of 5

    Adeline (store manager)


  29. 4 out of 5

    Ariana (store manager)

    Covering nose and mouth is hot weather is gonna be next few years I dare say.

  30. 5 out of 5

    Quinn (store manager)

    It is an excellent product and very good quality. They arrived in their box and complete.

  31. 5 out of 5

    Madeline (store manager)

    Very comfortable.

  32. 5 out of 5

    Samantha (store manager)

    good price with quality . Thanks !

  33. 5 out of 5

    Brooklynn (store manager)

    Loved the mask..breathability was good

  34. 5 out of 5

    Brielle (store manager)

    Thick headbands. Durable.

  35. 5 out of 5

    Jade (store manager)

    Received in 3 days! Great price and received exactly what was pictured.

  36. 5 out of 5

    Dakota (store manager)

    Perfect masks. Gives the job. Great price, fast shipping. Good quality!

  37. 5 out of 5

    Tessa (store manager)

    good quality

  38. 5 out of 5

    Piper (store manager)

    The masks are great, fresh and keep their cool.

  39. 5 out of 5

    Dakota (store manager)

    Great product

  40. 5 out of 5

    Ellie (store manager)

    Worked as saud

  41. 5 out of 5

    Zoe (store manager)

    great customer service and love the product

  42. 5 out of 5

    Aubrey (store manager)

    Good value

  43. 5 out of 5

    Cora (store manager)

    This took a really long time to deliver. Standard masks, typical materials. A box there was put into a shipping envelope, but I did not buy it for a nice box. Too expensive but expected that.

  44. 5 out of 5

    Athena (store manager)

    Comfortable, and breathable. Recommended.

  45. 5 out of 5

    Liliana (store manager)

    These masks fit well, reasonably priced, good quality product.

  46. 5 out of 5

    Dakota (store manager)

    Came packaged well and are of good quality.

  47. 5 out of 5

    Violet (store manager)

    Very comfortable thanks and the perfect shipment.

  48. 5 out of 5

    Natalie (store manager)

    cant work without these

  49. 5 out of 5

    Emilia (store manager)

    I’d rather not need them but such is life. They do the job without being expensive.

  50. 5 out of 5

    Sophie (store manager)

    Works good

  51. 5 out of 5

    Angela (store manager)


  52. 4 out of 5

    Aurora (store manager)

    it took way to long for masks to get here but its a great buy

  53. 4 out of 5

    Kennedy (store manager)

    Great price but having to straps break or come undone. Makes the savings not so good .

  54. 5 out of 5

    Sarah (store manager)

    Very good product, arrived quickly and in good quality.

  55. 5 out of 5

    Eva (store manager)

    Very good.

  56. 5 out of 5

    Everleigh (store manager)

    It’s a good product for the price. It arrived faster than expected.

  57. 5 out of 5

    Alivia (store manager)

    One of the best.

  58. 4 out of 5

    Lily (store manager)

    Good price!

  59. 4 out of 5

    Everly (store manager)

    Item as described.Fits well..comfortable and good protection.Very lightweight.
    My second order with this seller.Satisfied again..Thanks

  60. 4 out of 5

    Madelyn (store manager)

    i would rather wear this mask, and dispose it than a reusable mask. It’s ok product, and for the price. I would definitely recommend it. One star down because a

  61. 5 out of 5

    Rylee (store manager)

    I love the quality and lightness of these masks

  62. 5 out of 5

    Natalia (store manager)

    Good quality and price.

  63. 5 out of 5

    Joanna (store manager)

    Just what we needed at this time

  64. 4 out of 5

    Nora (store manager)

    Fits well..

  65. 5 out of 5

    Allison (store manager)


  66. 5 out of 5

    Autumn (store manager)

    Overall great product for the price!

  67. 5 out of 5

    Sadie (store manager)

    Excellent product!

  68. 5 out of 5

    Leilani (store manager)


  69. 5 out of 5

    Aspen (store manager)

    Best, thank you.

  70. 4 out of 5

    Leah (store manager)

    Fast delivery and good deal. Just the mask handle needs to be more stronger.

  71. 4 out of 5

    Ivy (store manager)

    Mask are good quality. However, some of the masks string broke easily.

  72. 5 out of 5

    Delilah (store manager)

    The mask or great thank you

  73. 5 out of 5

    Maria (store manager)

    They are nice, half the cost if buying local.

  74. 5 out of 5

    Vera (store manager)

    Delivery was fast compared with other companies-Thankyou

  75. 4 out of 5

    Sophia (store manager)

    I have to twist the elastic to keep it from sliding into my eyes. But super breathable.

  76. 5 out of 5

    Lillian (store manager)

    I had tested the masks and confirmed they passed

  77. 5 out of 5

    Aaliyah (store manager)

    The mask is OK, but it’s a little thin. For non professionals, it only depends on the thickness. Everything else is OK

  78. 5 out of 5

    Julia (store manager)


  79. 5 out of 5

    Journey (store manager)

    Exactly what I requested

  80. 5 out of 5

    Maya (store manager)

    very comfortable, I’d by again

  81. 4 out of 5

    Alice (store manager)

    I’ve noticed that some of the masks in the same package are more comfortable than others. They all seem to be the same size, but some just don’t stretch as much. They are a very good value, and a necessity these days. They are not thick, but do the job. The straps around your ears are not tight, and are easy to put on and take off. The metal strip over the nose is a perfect size.

  82. 5 out of 5

    Adriana (store manager)

    Great price for the quality

  83. 5 out of 5

    Jayla (store manager)

    Does the job, good protection & comfortable

  84. 4 out of 5

    Grace (store manager)

    You get what you pay for. Makes me hard to breath after wearing it for 30 mins.

  85. 5 out of 5

    Riley (store manager)

    Was a good buy

  86. 4 out of 5

    Lola (store manager)

    very comfortable, I’d by again

  87. 4 out of 5

    Hailey (store manager)

    Shipping took forever, but during this time and I guess that is to be expected. So I took off 1 star for the odd package, even though that will have no relevance on performance.

  88. 5 out of 5

    Evelyn (store manager)

    The comfort seems okay but the tear away before you can even try and wear them.

  89. 5 out of 5

    Elsie (store manager)

    I don’t know what I was expecting but these turned out to be really good quality masks. Even passed the match test. I dropped a star bc they were overpriced.

  90. 4 out of 5

    Sawyer (store manager)

    Shipping took forever, but during this time and I guess that is to be expected.

  91. 5 out of 5

    Ava (store manager)

    Good quality and fast shipping

  92. 5 out of 5

    Charlotte (store manager)

    I will be buying more soon

  93. 5 out of 5

    Hazel (store manager)

    Besides being comfortable, it came quickly !!!!??

  94. 5 out of 5

    Ruby (store manager)

    Does the job, good protection & comfortable

  95. 4 out of 5

    Gianna (store manager)

    I don’t know what I was expecting but these turned out to be really good quality masks. Even passed the match test. I dropped a star bc they were overpriced.

  96. 5 out of 5

    Josephine (store manager)

    I liked everything about the mask…Fit and protection….

  97. 5 out of 5

    Arya (store manager)

    They finally got here,12-6-2019 took a while.

  98. 5 out of 5

    Feliks (store manager)


  99. 5 out of 5

    Lydia (store manager)

    Great mask for the price I paid.

  100. 5 out of 5

    Clara (store manager)

    Work fine

  101. 5 out of 5

    Peyton (store manager)

    Good product

  102. 5 out of 5

    Reagan (store manager)

    Excellent face mask

  103. 5 out of 5

    Adelyn (store manager)

    My first order of these is great.

  104. 4 out of 5

    Hannah (store manager)

    Good although pricey

  105. 5 out of 5

    Harper (store manager)

    Just as advertised, nice product for the money, would buy again.

  106. 5 out of 5

    Maeve (store manager)

    Comfortable and well worth the price

  107. 5 out of 5

    Isabella (store manager)

    I love them and glad to have now

  108. 4 out of 5

    Eleanor (store manager)

    I haven’t tried them yet, but they seem about the same quality as the ones I bought from Costco three years ago.

  109. 5 out of 5

    Stella (store manager)


  110. 5 out of 5

    Nikolas Yakur (store manager)

    I bought this for my dad as he is a construction worker. and he uses it every day!.. and he loves it!!.. quality is better then expected… anyone looking for a dust mask should get this.. will be impressed. stop wasting your money on cheap masks from the store and get this n99 dust masks.

  111. 5 out of 5

    Kehlani (store manager)

    I would rather wear this mask, and dispose of it than a reusable mask. It’s ok product. I would definitely recommend it.

  112. 4 out of 5

    Catherine (store manager)

    These arrived very nicely packaged and sealed with a certificate telling where and what they were made. The masks are of good quality and all of the strings are firmly attached.

  113. 5 out of 5

    Willow (store manager)

    Good product

  114. 4 out of 5

    Anna (store manager)

    It’s good but it’s too big

  115. 4 out of 5

    Kali (store manager)

    This took a really long time to deliver. Standard masks, typical materials. Too expensive but expected that.

  116. 5 out of 5

    Emma (store manager)

    Perfect price

  117. 5 out of 5

    Valentina (store manager)

    Great product

Add a review

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Jan Radder
Jan Radder
The Bielcor N95 B201 mask provides a good fit on your face with no detectable leakage, especially around the area of the nose. I know this because I wear glasses and other masks have caused my glasses to fog up but not this one. Also, when I place my hands over the outside of the mask and breathe in, I can feel the mask pulling into my face. I always feel safe when I wear the mask indoors with crowds about.
Katarzyna Oko
Katarzyna Oko
Really like the masks this company manufactures. Very comfortable on my soft skin.
brooks best
brooks best
N95 masks are comfortable for extended wear, perform well, and reasonably priced. Very happy with my purchase
Chrisie Allen
Chrisie Allen
These masks are exactly what I was looking for. They fit comfortably more than any other n95 I've tried. Hell yeah! Definitely will be buying these on the reg.
James Lin
James Lin
Fast shipping, good fit, recommended N95 mask.
Tyson Washington
Tyson Washington
Great pricing model. Expedited delivery and surprisingly comfortable and durable masks! Most importantly the customer service experience was amazing. I will recommend this product often.
j and k h
j and k h
The N95 masks we purchased were legitimate, a good fit, and very comfortable. Received an order of three boxes on time with no issues and a reasonable price. Would purchase again.
Great product highly recommend. Fits my face perfectly.