dust mask
dust mask
dust mask
dust mask

B300 N99 Dust Mask




SKU: B300 Category:


  • Advanced Particulate Respirators – These disposable anti-dust masks help protect you from inhaling small particulates like saw dust, metal shavings, pollen, allergens and more.
  • Precision N99 Filtration – Made to protect against non-oil-based particles as small as 0.3 microns, breathe easier indoors and outdoors with a National Institute for Occupational Safety and Health (NIOSH) approved mask.
  • Flexible, Contoured Nose Clip – Each dust-proof mask is fitted with a custom metal nose piece that can be bent or shaped to better suit your face for optimal comfort.
  • Personal or Commercial Use – This N99 dust mask can be used for woodworking or painting at home or by professional carpenters, contractors, or lawn care specialists.
  • Cool, Breathable Comfort – Our lightweight respiratory masks are a smart addition to your protective equipment because they protect your lungs and long-term health.

Avoid inhaling harmful particles that can damage your lungs or make you sick with a protective N99 dust mask from Bielcor.

Whether you’re woodworking in the garage, planting new flowers when the pollen count is high, or you’re grinding out parts in your workshop, smoke from wildfires, and even pollution in the cities. It’s important to protect your long-term health by wearing a protective breathing mask. That’s why we created Bielcor N99 Dust Masks that help block out ultra-fine particles as small as 0.3 microns while still allowing you full, deep breaths of clean, fresh air.

Designed with an adjustable metal nose piece and flexible head strap, these lightweight masks slip over your face to protect you against a wide range of non-oil-based particulates; things like saw dust, pet dander, common pollen and allergens, grass, and so much more.

A smart, effective way to filter out airborne particles, protect your lungs, and breathe a little easier even when the dust starts to fly, choose Bielcor and always be protected.

Product Details:

  • N99 Dust Mask with Exhaust Valve (12-Pack)
  • NIOSH-Certified Respirator
  • Contoured, Adjustable Metal Nose Piece
  • Lightweight, Breathable Comfort
  • Flexible Head Strap
  • Non-Resistant to Oil
  • Personal, Commercial, or Industrial Use
  • Guaranteed Satisfaction


Click ‘Add to Cart’ to help protect your breathing with a set of N99 dust masks that help block allergens, pollen, saw dust, metal shavings, and more.


Additional information

Weight 9.0 g
Dimensions 5 × 5 × 8.50 in

10 reviews for B300 N99 Dust Mask

  1. 5 out of 5

    nikolas yakur

    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.

  2. 5 out of 5



  3. 5 out of 5

    Eva Zawadzki

    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.

  4. 5 out of 5


    Great masks I have been using them since I started the renovation and they work great the exhaust valve makes it comfortable to wear without getting too hot inside. Will buy again

  5. 5 out of 5

    Toan Nguyen

    I love the fitting of these! They are slightly smaller than the M3 N95 masks, and the material is sturdier. I found the material could be a bit hard when fist putting on against the skin, but once breaking in, the masks keep the form and shape quite well. Haven’t use it outside so can’t comment on the breath-ability.

  6. 5 out of 5


    I had to reorder these masks for very unhealthy air quality in the city. I had been using the N95 which have been really uncomfortable to wear. These, N99, have greater protection since they filter out 99% of particles instead of 95% and have a much better fit on the face. Also, the wire over the nose is softer which makes bending to fit the nose easier and more comfortable to wear.

  7. 5 out of 5


    Great mask !! I use it when landscaping and working around the house . I find this mask more breathable than other brands out there. will be buying again for sure

  8. 5 out of 5

    Phillip H.

    I work construction and do a lot of demolition. I go thru a box a week and there is 12 in a box. This brand I have never heard of so I wanted to give a try and I am really happy I made this purchase because they are very comfortable and breathable.

  9. 5 out of 5

    Jeff (verified owner)

    Thanks, look great Love them

  10. 5 out of 5


    Excellent. Very easy to breathe. Purchased them due to COVID. Nice snug fit on bridge of nose once you adjust the foam piece. Not breathing back in my own hot air.

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