EN149 2019 N95 Respirator Leakage And Walk Testing Equipment
1.The environmental test chamber for inspection consists of a size of 2000W×2000D×2500H m and a volume of 10m 3. The cabin is made of stainless steel frame and tempered glass.
2.The stable flow net on the top of the test chamber makes the gas form an irregular swirling flow, accelerates the gas mixing, and keeps no dead angle in the chamber, and reaches the pollutant uniformity required by the experiment after several cycles.
3 The overall structure of the environmental test cabin is mainly composed of the cabin body, the air purification system, the exhaust air duct, and the air sampling system
| Test cabin volume | 10m3 |
| The size of the test cabin | 2000 × 2000 × 2500mm (L × W × H) |
| Material | tempered glass |
| Thickness | 10mm |
| (External purification system) Fan | 1000m3/h |
1.Frame material Stainless :steel frame
2.Sealing material: Silicone rubber strip and glass sealant
3.Guardrails :Add guardrails to the sampling hole surface
4.Lighting: 2 LED fluorescent tubes (lighting lamps and fans are installed on the top of the test cabin, fixed inside and outside with Teflon material, and sealed with imported glass glue that does not release)
5.Clean system: Primary effect filter, medium effect filter, high efficiency filter
6.Exhaust system: The sewage treatment adopts spray water washing treatment and photocatalytic oxidation method
7.Test installation bracket Configure a stainless steel split wall hanging machine internal machine installation bracket (H180cm*W100cm*)
8.Cleanliness level: make the background concentration of particles with a particle size of more than 0.3μm less than 1000 particles/L within 20 minutes.
9. Airtightness The number of air changes is not more than 0.05h-1.
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