Renewable Design for Non-Woven Face Mask - Hours Self-Contained Closed Circuit Breathing Apparatus – Topsky
Renewable Design for Non-Woven Face Mask - Hours Self-Contained Closed Circuit Breathing Apparatus – Topsky Detail:
portable emergency breathing apparatus)
(4 Hours Breathing Apparatus)
Qualifications: Coal Mine Safety Certificate
Explosion-proof Certificate
Inspection Certification
Applications
Whenever emergency teams are saving lives or extinguishing fires, above or below the ground, HYZ4 Self-Contained Closed Circuit Breathing Apparatus comes into its own. Whether used during rescue or fire fighting missions in mines, tunnels or underground train ducts where there is noxious gas or oxygen insufficient emergency, HYZ4 Self-Contained Closed Circuit Breathing Apparatus is the first choice. More than 10,000 professional users rely on the HYZ4 Self-Contained Closed Circuit Breathing Apparatus in China.
Specially designed for demanding tasks: HYZ4 Self-Contained Closed Circuit Breathing Apparatus combines uncompromising safety with outstanding respiratory protection and wearer comfort. Innovative in design, it provides the wearer with up to four hours of breathing air in toxic environments.
Key features
●Breathing Oxygen for up to 4 Hours
●Highest breathing comfort with an integrated cooling system
●Ergonomically shaped carrying plate
●Reduced exposure from a well balanced system
●Improved harness and intelligent breathing hose routing for excellent freedom of movement
Technical specification
Duration of use | 4 h |
working pressure for oxygen bottle | 20MPa |
Capacity for oxygen bottle | 2.4L |
Oxygen storage | 480L |
Breathing rate | 30L/min |
Exhaling resistance | (0~600)Pa |
Inhaling resistance | ≤600Pa |
Fixed Oxygen-supplying | ≥1.4L/min |
Automatic Oxygen-supplying | ≥80L/min |
Manual Oxygen-supplying | ≥80L/min |
Start pressure for Auto-supplying valve | (10~245)Pa |
Inhaling Carbon dioxide concentration | ≤1% |
Inhaling oxygen concentration | >21% |
Weight, ready for use | 10 kg (incl. mask) |
Dimensions (H x W x D) | 560 x370 x 160 mm |
Product detail pictures:

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We normally follow the basic principle "Quality Initial, Prestige Supreme". We've been fully committed to offering our consumers with competitively priced good quality merchandise, prompt delivery and professional support for Renewable Design for Non-Woven Face Mask - Hours Self-Contained Closed Circuit Breathing Apparatus – Topsky , The product will supply to all over the world, such as: Nigeria, French, Israel, We insist on the principle of "Credit being primary, Customers being the king and Quality being the best", we are looking forward to the mutual cooperation with all friends at home and abroad and we will create a bright future of business.

The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
