Programma di certificazione DPI
Non-Powered Air Purifying Respirators
CONFORMITÀ SALUTE CANADA E NIOSH
Durante la pandemia globale COVID-19, come il mondo vede un aumento della domanda di Personal Protective Equipment (Ppe), and specifically for face masks, third-party approval of protective equipment is critical to ensure that it meets the required safety specifications, prima di essere indo ai dati sul mercato. LC compliance reports provide manufacturers of respirators with the validation that their product provides the minimum level of protection against the intended risk.
How to choose the right mask?
How to choose the right mask?
Ci sono diversi tipi di maschere protettive disponibili sul mercato, come reusable (Tessuto) Maschere, maschere chirurgiche, e respirators. L'efficienza della filtrazione varia tra le maschere in base a molti fattori diversi.
Che cos'è un Respiratore?
Poiché il Coronavirus outbreak continues, tutti abbiamo familiarmente con le maschere protettive, especially the N95 respirators. Compared with other types of protective masks, Respiratori N95 are designed to form a seal around the user’s nose and mouth, che potrebbe non essere il caso con altre maschere di tipo, come per esempio, maschere chirurgiche. I respiratori N95 filtrano la maggior parte delle particelle più grandi 0.06 micron di diametro e quindi, protect from viruses like the coronavirus, che di solito ha un diametro sopra 0.08 Micron.
Che cosa significa N95?
This is the rating of a non-powered filtering respirator that’s “not resistant to oil” and that has a minimum efficiency rating of 95%. What does that mean? This means that less than 5% of particles pass through the mask when tested using sodium chloride aerosol.
Ci sono 3 main types of (non-powered) Air-Purifying Respirators:
N (Non-resistant to oil)
R (Resistant to oil)
P (oil Proof)
Respirator Ratings Comparison
Respirator Ratings Comparison
| N95 | KN95 | FFP2 | P2 | Corea 1a Classe | Ds | |
|---|---|---|---|---|---|---|
| Dove |  NOI & Canada |  Cina |  Europa |  Australia & Nuova Zelanda |  Corea del sud |  Giappone |
Specifica | NIOSH-42CFR84 | GB2626-2006 | IT 149:2001+ A1:2009 | AS / NZ 1716:2012 | KMOEL 2017-64 | Notifica JMHLW 214, 2018 |
Why Is Testing Needed?
Why Is Testing Needed?
Having personal protective equipment tested by a third-party ensures that products such as Air-Purifying Respirators meet the requirements of the applicable product standards of the country in which they will be used and therefore, that it will not cause harm to the users. As each country’s regulations, and consequently each standard, are different, it is important to inform the third-party agency of which market the product is intended for, when submitting it for evaluation.
What tests are needed for respirators?
What tests are needed for respirators?
For respirators without an exhalation valve, two of the main tests required are: Il Airflow Resistance Test E la Efficienza della filtrazione del particolato (Pfe).
Airflow Resistance Test
Airflow Resistance Test
The Airflow Resistance test consists of determining the resistance of the mask to inhalation and exhalation. For each determination, the mask is mounted on the test equipment and the air is set to flow at a rate of 85 liters per minute. Respirators must meet the following requirements:
Inhalation Test
Inhalation Test
Exhalation Test
Exhalation Test
Efficienza della filtrazione del particolato (Pfe)
Efficienza della filtrazione del particolato (Pfe)
Pre-Test
Pre-Test
- 20 samples must be tested
- Per 25 hours prior to the test, samples are conditioned at 85% relative humidity and 38°C
Test Procedure
Test Procedure
- For N-series respirators, a stream of solid sodium chloride particulate aerosol is created with tight constraints on the particle size distribution
- Il aerosol is neutralized and is conditioned to a temperature of 25℃ and a relative humidity of 30%.
- Single filter respirators are tested at a continuous airflow rate of 85 litri per minute
- The efficiency of the filter shall be monitored and recorded throughout the test period by measuring the particle concentration before and after the test sample.
- The test continues until the minimum efficiency is achieved or until at least 200±5 mg has contacted the filter
Post-Test
Post-Test
- Masks are classified based on the fraction of sodium chloride that passes through. N95 masks must filter out at least 95% of the NaCl solution, N99 masks filter at least 99% and N100 masks filter at least 99.97%
- The efficiency measured for each of the 20 samples must be equal to or greater than the filter efficiency criterion (ad es.. 95% for N95).
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