attribute
Bacterial filtration efficiency (BFE) ≥ 99.999 %
Virus filtration efficiency (VFE) ≥ 99.999 %
Particle filtration size does not exceed 0.027 microns.
Traps bacteria, viruses, Hepatitis C, Human Immunodeficiency Virus (HIV) and Coronavirus.
Tidal Volume 150 – 1500 ml.
Air flow resistance rate 0.97 CM H2O @ 30 liters/minute
Total weight 36 grams
Joint type 22F / 15 M – 22M/15F
There is a Gas Sampling port connector with a Luer lock cover.
Certified to international standards ISO 13485, ISO 9001 and CE Mark.
International Standards Institute Nelson Laboratories/USA
HEPA Filter (High-Efficiency Particulate Absorption Filter)
What is a HEPA Filter ?
The word ‘ HEPA ‘ is an abbreviation for High Efficiency Particulate Air that means efficiency in filtering viruses and bacteria or dirt. Higher than normal, the HEPA Filter is made from advanced fiber technology, fiberglass fibers that are woven back and forth, arranged irregularly. Able to trap dust, viruses, and bacteria that are 0.3 microns in size with a filtration efficiency of at least 99.97%. However, this does not mean that if dust, viruses, and bacteria that are smaller than 0.3 microns cannot be captured. Because the qualifications mentioned are only the minimum standard criteria. For using the word HEPA only, nowadays there are many levels of HEPA Filters, some of which can filter smaller than 0.3 microns.
Dust, viruses, and bacteria can be captured in four ways:
Direct Impact traps viruses and bacteria or large dirt such as dust, pollen, or some types of mold. It will collide and attach directly to the filter fibers.
Screening (Sieving) in the case that it does not directly collide with the filter. But with the density of the fibers inside the filter Make the space between each strand so small that viruses, bacteria, or dirt won’t be able to pass through that space.
Interception when viruses, bacteria or dirt The small particles move quickly as the air passes through the filter. It may allow them to move around the fibers in the first step. But with the density of the fibers and inertia, finally viruses and bacteria or dirt Those are stuck to the side of the filter that coils around like a wave.
Diffusion of viruses and bacteria or dirt Very small filters (e.g. smaller than 2.5 microns) tend to have non-directional paths or patterns, making them more likely to collide with and stick to the filter fibers on their own.
Therefore, it is clear that If it is known as a HEPA FILTER air filter, then it can truly and definitely filter out small dust particles, viruses, and bacteria or dirt that is smaller than 2.5 microns. Which HEPA FILTER filters are currently being used with In many circles and places, whether used in homes, offices, mass transit systems, science circles, hospitals that require cleanliness. To be as germ-free as possible.
