We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Flat stack of fifty blue rectangular masks with ear loops and nose wire visible

JMU ASTM Level 3 4-Ply Face Mask 50 Pack Blue

SKU CH-8M7W-C6M78

Four-layer ASTM Level 3 medical mask with 98 % filtration, adjustable nose wire and elastic ear loops, 50 per box

  • Item Count50, Count, Blue
  • Weight Capacity0.259 kilograms
  • Tensile StrengthNon-woven
  • Lens ColorBlue
  • Lining MaterialNon-woven
  • Sole MaterialNon-woven
  • ASTM Level 3 certification delivers 98% particle filtration efficiency
  • Four-layer construction with meltblown layer provides enhanced barrier protection
  • Adjustable nose wire and elastic earloops create secure fit for different face shapes
  • Soft non-woven material allows high airflow while reducing heat buildup during wear
  • Pack of 50 adult-size masks suits healthcare, dental, beauty and daily commute use

Medical-Grade Filtration

JMU ASTM Level 3 masks deliver 98% particle filtration efficiency through a four-layer construction of three non-woven layers and one meltblown layer. Each adult-sized mask measures 17.5cm by 9.5cm and comes in a pack of 50. They are designed for healthcare centres, dental offices, beauty treatments and daily commuting.

Breathable Thermal Comfort

The soft non-woven material provides high filtration with low breathing resistance, reducing mugginess during extended wear. An adjustable nose bridge wire and elastic earloops create a secure seal that limits heat build-up around the face. Each box weighs 0.259 kilograms for lightweight portability.

Build Integration Essentials

Masks arrive in a compact box sized 7.5 L x 4 W x 3.5 H inches, with 40 boxes per case for bulk storage. The universal blue colour and adult dimensions suit most face shapes without additional sizing. No ESD or dielectric properties are present, so they do not replace specialised cleanroom or electrical safety gear.

Highlights

  • ASTM Level 3 certification delivers 98% particle filtration efficiency
  • Four-layer construction with meltblown layer provides enhanced barrier protection
  • Adjustable nose wire and elastic earloops create secure fit for different face shapes
  • Soft non-woven material allows high airflow while reducing heat buildup during wear
  • Pack of 50 adult-size masks suits healthcare, dental, beauty and daily commute use

Specifications

BrandJMU
Item Count50, Count, Blue
Weight Capacity0.259 kilograms
Tensile StrengthNon-woven
Lens ColorBlue
Lining MaterialNon-woven
Sole MaterialNon-woven
WaterproofJMU
Cold ProtectionNon-woven
Elesctrostatic Dissipative ESDNo
DielectricNo
Shoe Width7.5 L x 4 W x 3.5 H inches
Color/FinishBlue
Part Number24007001A

Questions about this item

How do I put on the mask so the adjustable nose bridge wire seals properly?

Hold the mask blue-side out, loop the elastic earloops behind each ear, then press the nose bridge wire firmly against the bridge of your nose to close any gaps.

When should I replace one of the 50 masks in the pack?

Replace the mask after a single use or sooner if it becomes damp, soiled, or the earloops lose elasticity.

How long can I wear one mask continuously before breathing resistance builds up?

The 4-ply non-woven construction is rated for low breathing resistance, but discard the mask once it feels moist or after extended wear in high-humidity conditions.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.