Environmental Testing Lab

Face Mask is the very popular word now days,because of Corona.India government has declared mandatory things to face masks in life.So all company or manufacturing unit,who are manufacturing or marketing face masks have responsibility to reached  a healthy product to customers .So they have to need for testing or true testing.We are regularly screens & tests face masks.The testing requirements for face masks are complicated & have not yet been finalized by the agency.We test face masks testing as per requirements.

Physical Properties & Quality

Performance of surgical masks is evaluated based on such parameters as filtration (mask capture of exhaled aerosols), exposure (transfer of aerosols from outside),mask airflow resistance (pressure difference during breathing, ΔP, also known as breathability), liquid penetration resistance, air and water vapor permeability, water repellency (for outer and inner surfaces).


Typical unit

Pressure differential, ∆P

cm of H2O / cm²

Filtration and exposure


Liquid penetration resistance


Air permeability

ml/s⋅cm² at 100 Pa

Water vapor permeability

g/24 hr⋅cm²

Water repellency


Masks Standard is developed by American Society of Testing and Materials (ASTM). We follow standard procedure to give the best quality masks. ... In order to be called a medical/surgical maska minimum 95% filtration rate is required.

BFE mask-BFE measures the filtration efficiency of a mask using viable (live) particles (bacteria) that vary in size from 1 to 5 microns

Surgical mask- There are five tests they must be put through:

  1. Bacteria filtration efficiency in vitro (BFE). This test works by shooting an aerosol with staphylococcus aureus bacteria at the mask at 28.3 liters per minute. ...
  2. Particle Filtration Efficiency. ...
  3. Breathing resistance. ...
  4. Splash resistance. ...
  5. Flammability.
Level 3 masks-Level 3 masks (ASTM high barrier) are designed for procedures with moderate to heavy amounts of blood, fluid, spray and/or aerosol exposure ASTM mask-ASTM level 1 masks are the general standard for both surgical and procedural use. Level 2: moderate barrier protection for low-to-moderate levels of aerosols, sprays and fluids. Level 3: maximum barrier protection for any situation that has the potential for exposure to heavy levels of aerosols, sprays and fluids.N95 Respirators and Surgical Masks (Face Masks)-N95 respirators and surgical masks (face masks) are examples of personal protective equipment that are used to protect the wearer from airborne particles and from liquid contaminating the face. The Centers for Disease Control and Prevention (CDC) does not recommend that the general public wear N95 respirators to protect themselves from respiratory diseases, including coronavirus (COVID-19). Those are critical supplies that must continue to be reserved for health care workers and other medical first responders, as recommended by current CDC guidance. Surgical Masks (Face Masks)-A surgical mask is a loose-fitting, disposable device that creates a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment.
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