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Nitrogen dioxide (NO2)

This page presents information about nitrogen dioxide (NO2), appropriate detection means – nitrogen dioxide detector – and respiratory protective equipment (self-contained breathing apparatus and supplied air respirator).

nitrogen dioxide detector and NO2 respiratory protection: mask, filter and SCBA

Nitrogen dioxide properties

Nitrogen dioxide (NO2) is considered as responsible of atmospheric pollution. As a consequence, this gas is a major indicator for air quality monitoring agencies. It is notably produced during internal combustion of diesel-powered engines and can be found in any area with these vehicles (mines, garages, car parks…). NO2 is also widely used in the chemical industry for example for nitric acid (HNO3) synthesis.

CASTWA (8 hours)STEL (15 minutes)LELIPDensity / AirFilter / Air
10102-44-00.5 ppm1 ppm9.581.59ARI

Nitrogen dioxide effects on health

Nitrogen dioxide is a yellow-brown gas with a pungent smell from 0.2 ppm. This gas is irritating to the eyes (R36) and respiratory system (R37). It is very toxic by inhalation (R26) as well and can cause burns (R34). Non-flammable and non-explosive, nitrogen dioxide is a strong oxidizer that can ignite combustion. Its reactivity with many chemical compounds (chloride compounds, benzene) can produce explosive gaseous mixtures.

Nitrogen dioxide effects on health - NO2

Nitrogen dioxide effects on health (NO2)

Nitrogen dioxide gas detector

Even if NO2 gas can be detected by its color and smell, only a nitrogen dioxide detector can accurately measure concentrations of this particularly toxic gas. Thus it is recommended to use fixed or portable nitrogen dioxide detection equipment.

VENTIS-MX4 portable gas detector that complies with ATEX standards. This detector can detect from 1 to 4 gases with a large range of sensor combinations (Explo 0-100% LEL, O2, CO, H2S, NO2, SO2).

  • Detection of Explo (0-100% LEL), O2, CO, H2S, NO2, SO2
  • Robust, shock-resistant and waterproof device (IP66 and IP67)
  • Enhanced visibility with safety orange overmold
  • Compact and lightweight: first multigas detector with a single-gas detector size
  • Optional slide-on sampling pump (up to 30 meters)
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Portable 4 gas detector – VENTIS-MX4 – EXLO, O2, CO, H2S

VENTIS-MX4 portable gas detector that complies with ATEX standards. This detector can detect from 1 to 4 gases with a large range of sensor combinations (Explo 0-100% LEL, O2, CO, H2S, NO2, SO2).

Portable gas detector MX4-Ventis
  • Detection of Explo (0-100% LEL), O2, CO, H2S, NO2, SO2
  • Robust, shock-resistant and waterproof device (IP66 and IP67)
  • Enhanced visibility with safety orange overmold
  • Compact and lightweight: first multigas detector with a single-gas detector size
  • Optional slide-on sampling pump (up to 30 meters)
Additional information

The Ventis-MX4 is a portable multigas detector. Contrary to single-gas detectors, it can detect up to 4 gases. Thanks to its rechargeable Li-ion battery, it can continuously operate during around 12 hours at 20°C ambient temperature. This battery can be replaced by an optional extended battery for up to 20 hours of autonomy without pump.

The Ventis-MX4 portable gas detector can detect up to 4 gases amongst explosive gases, oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), sulfur dioxide (SO2) and nitrogen dioxide (NO2). A specific location is dedicated to the explo sensor (catalytic sensor) and the oxygen sensor (electrochemical sensor). A 4 gas unit will basically include oxygen and explo sensors.

The Ventis-MX4 features 3 different alarms. The first one is a powerful 95 dB at 30 cm audible alarm to alert in noisy environmets. A high visibility red LED visual alarm and an ultra- vibrating alarm are added to improve safety. Two alarm levels are configures: low and high alarms – which are basically calibrated under occupational safety at work data.

The Ventis-MX4 portable gas detector also features the same physical properties – dimension and weight – than a single-gas detector. It can be wore close to the breathing tracts thanks to its crocodile clip without disturbing the user. This multigas detector shock-resistant and waterproof thanks to its high visibility polycarbonate-made overmold.

As this device can detect explosive gases, it meets current EU ATEX standards (explosive atmosphere). A sampling pump – VSP for Ventis-MX4 – is available to draw remote samples (up to 30 meters) before interventions – e.g. in confined space.

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The X-am 2500 portable 4 gas monitor has been especially designed to accurately monitor concentrations of 1 up to 4 gases:  combustible gas (0 - 100% LEL) oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), nitrogen dioxide (NO2) and sulfur dioxide (SO2). The device is guaranteed for 3 years.

  • 4 gas monitor: Drager portable multi gas detector for oxygen O2,CO, H2S, NO2, and SO2 monitoring
  • Large LCD display for easy concentrations reading
  • High capacity battery for over 12 hours operation
  • Ergonomic and robust design, ATEX approved
  • Long-lasting specific sensors
  • Available with optional pump for remote sampling
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Portable 4 gas monitor X-am 2500

The X-am 2500 portable 4 gas monitor has been especially designed to accurately monitor concentrations of 1 up to 4 gases:  combustible gas (0 - 100% LEL) oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), nitrogen dioxide (NO2) and sulfur dioxide (SO2). The device is guaranteed for 3 years.

4 gas monitor: Drager portable multi gas detector for oxygen O2,CO, H2S, NO2, and SO2 monitoring
  • Large LCD display for easy concentrations reading
  • High capacity battery for over 12 hours operation
  • Ergonomic and robust design, ATEX approved
  • Long-lasting specific sensors
  • Available with optional pump for remote sampling
Additional information

Especially designed for use in hazardous atmospheres, the X-am 2500 portable multi gas detector is ATEX approved for zone 0 (permanent explosive atmosphere). This small 4 gas monitor can accurately and reliably detect the presence of up to 4 gases among O2 (oxygen), CO (carbon monoxide), H2S (hydrogen sulfide), NO2 (nitrogen dioxide) and SO2 (sulfur dioxide).

The powerful tiny sensors of the X-am 2500 multi gas detector allow safe and reliable detection of hazardous gases concentrations. Thus these high performance gas detection sensors are ideally well-suited for industrial applications and refineries. Moreover, thanks to their unique design, these gas detection sensors feature a long-lasting shelf life – up to 5 years for O2, CO and H2S sensors. This high sensor durability then enables reduction of gas detection related operating costs.

Thanks to its compact and lightweight design associated to a robust crocodile clip, the X-am 2500 portable 4 gas monitor can be easily and comfortably worn on a belt or on a collar without disturbing the user. Moreover, this portable multi gas  detector features several gas entries on the top and on the front in order to properly operate even if the device is inside a pocket or if one of the entries is accidentally covered. As a safety device against potentially dangerous gas concentrations, the X-am 2500 has a 3 years guarentee to ensure maximum security to its user.

The X-am 2500 portable gas monitor  features a large easy to read LCD display. All of the target gases are simultaneously displayed on the screen and once a gas alarm occurs, the hazardous target gas is highlighted for fast recognition of the hazard. The ultra-bright visual alarm can be seen at 360° and is coupled with acoustic 90 dB at 30 cm and vibrating alarms.

An optional gas sampling pump is available to draw remote samples up to 30 meters in order to get sure of gases concentrations in confined spaces like tanks or pits before any intervention. This gas sampling pump, designed for this 4 gas monitor, automatically triggers upon the device start-up and it is very easy for the user to switch from pump mode to diffusion mode without any tool.

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The toxic gas detector GasBadge Pro ATEX series with interchangeable sensor. With a competitive price, this ATEX portable gas detector with interchangeable sensor combines power and flexibility.

  • Detection of Cl2, ClO2, CO, HCN, H2, H2S, NH3, NO2, O2, PH3, SO2.
  • Segmented LCD display for easy and direct reading
  • Internal data logging of alarm events and gas concentrations
  • CR2 3V lithium battery; 2,600 hours minimum runtime
  • Polycarbonate robust and waterproof housing
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Portable toxic gas detector GASBADGE PRO

The toxic gas detector GasBadge Pro ATEX series with interchangeable sensor. With a competitive price, this ATEX portable gas detector with interchangeable sensor combines power and flexibility.

Portable gas detector GasBadge Pro
  • Detection of Cl2, ClO2, CO, HCN, H2, H2S, NH3, NO2, O2, PH3, SO2.
  • Segmented LCD display for easy and direct reading
  • Internal data logging of alarm events and gas concentrations
  • CR2 3V lithium battery; 2,600 hours minimum runtime
  • Polycarbonate robust and waterproof housing
Additional information

The GASBADGE PRO toxic gas detector is a classic single-gas detector. Its long-duration battery operates for about 2,600 hours and can be replaced when used. As for any other classic single-gas detectors, it is highly recommended to calibrate the GASBADGE PRO twice a year to ensure proper operation.

The GASBADGE PRO toxic gas monitor is a classic single-gas detector with interchangeable sensors and features a large range of electrochemical sensors. This technology is designed to detect toxic gases: Cl2 (chlorine), ClO2 (chlorine dioxide), CO (carbon monoxide), HCN (hydrogen cyanide), H2 (hydrogen), H2S (hydrogen sulfide), NH3 (ammonia), NO2 (nitrogen dioxide), O2 (oxygen), PH3 (phosphine) and SO2 (sulfur dioxide).

The GASBADGE PRO has 3 alarms: a powerful 95 dB audible alarm to alert even in noisy environments, a red LED visual alarm for view alert signals even in the darkest places like confined spaces and a vibrating alarm.

These alarms will be triggered by 4 events: if the lower or the upper limit values are reached, if concentrations get over the occupational exposure limit or if the average value threshold is exceeded. Abnormal gas concentrations and other data can also be saved and downloaded from the device.

Compact and lightweight, the GASBADGE PRO toxic gas detector is made with a strong polycarbonate housing with a robust and waterproof over-mold in compliance with IP67 protection. The GASBADGE PRO is ATEX approved as well for explosive atmosphere under current EU standards.

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The PAC® 8000 portable special gas detector can accurately monitor concentrations of gases like phosgene (COCl2), organic vapors (OV), carbon dioxide (CO2), ozone (O3) and nitrogen oxide (NO).

  • The Drager PAC 8000 portable special gas detector
  • Can detect lower gas concentrations (starting at 0.01 ppm for COCl2).
  • Intuitive operation with large backlit display.
  • Data recording (concentration levels and alarm events).
  • 360° alarm (90 dB signal, LED lights, vibrating alarm).
  • ATEX, CE, IECEx, cCSAus approved.
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Portable special gas detector PAC 8000

The PAC® 8000 portable special gas detector can accurately monitor concentrations of gases like phosgene (COCl2), organic vapors (OV), carbon dioxide (CO2), ozone (O3) and nitrogen oxide (NO).

The Drager PAC 8000 portable special gas detector
  • Can detect lower gas concentrations (starting at 0.01 ppm for COCl2).
  • Intuitive operation with large backlit display.
  • Data recording (concentration levels and alarm events).
  • 360° alarm (90 dB signal, LED lights, vibrating alarm).
  • ATEX, CE, IECEx, cCSAus approved.
Additional information

Small, compact and lightweight, the PAC 8000 portable special gas detector is a disposable gas detector designed to continuously detect carbon dioxide (CO2), chlorine (Cl2), hydrogen cyanide (HCN), ammonia (NH3), nitrogen dioxide (NO2), phosphine (PH3) organic vapors (OV or OV-A) during two years.

This personal monitor can be equipped as well with specific sensors in order to monitor hazardous concentrations of special gases like ozone (O3) at very low concentrations from 0.02 ppm, phosgene (COCl2) from 0.01 ppm and nitrogen dioxide (NO2) from 0.04 ppm.

 

The PAC 8000 portable special gas detector has been designed for use in any situation, even in the harshest environments. Thanks to its robust housing design, this device is waterproof, impact-resistant and immune to corrosive chemical products. Its two powerful sensors with a low T90 response time ensure ultra fastt reaction and accurate measurement of the target gas. Its filter is protected against water, dust and other foreign bodies and can be easily replaced if clogged without particular technical skills. Thanks to its crocodile clip, it can be easily worn close to the breathing tracts to get even more precise measurements.

 

 

Thanks to its two powerful flashing LED that can be seen at à 360°, its 90 dB audible alarm and its vibrating alarm, the PAC 8000 special gas detector can alert users in presence of hazardous concentrations of the target gas.

 

The large backlit screen of this portable and disposable gas detector clearly indicates gas concentrations even in the darkest areas but also displays other important information such as remaining battery capacity or passed alarm events values. The PAC 8000 portable gas detector also logs concentrations and alarms so that they can be downloaded to a PC via an interface and processed further even if they were already acknowledged.

 

Each version of the special gas detector PAC 8000  is equipped with extremely durable sensors and powerful batteries to provide a continuous runtime over two years.

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Especially designed for use in boiler rooms or parkings, the OLCT10 sensor range is used to monitor presence of explosive vapors and gases or combustion toxic gases in ambient air.

 

  • Fixed gas detector OLCT10
  • Detection of the combustible gases, CO, NO, NO2
  • Power supply: 15 to 30 VDC
  • 4-20 mA linear output
  • Robust, user-friendly and easy to install
  • ATEX II 3 G / EEx nA IIC T4 approved
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ATEX fixed gas detector – OLCT10

Especially designed for use in boiler rooms or parkings, the OLCT10 sensor range is used to monitor presence of explosive vapors and gases or combustion toxic gases in ambient air.

 

Fixed gas detector OLCT10
  • Detection of the combustible gases, CO, NO, NO2
  • Power supply: 15 to 30 VDC
  • 4-20 mA linear output
  • Robust, user-friendly and easy to install
  • ATEX II 3 G / EEx nA IIC T4 approved
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Loop-powered (4-20 mA 2 wires) and equipped with an LCD display, the Serie 3000 fixed oxygen and toxic gas detector is particularly well-suited for potentially explosive atmospheres (ATEX zones).

  • Fixed gas detector serie 3000 transmitter
  • Large range of pre-calibrated gas detection sensors
  • Loop-powered, 2 cables
  • LCD screen for setup and concentrations display
  • Aluminum version or stainless steel with epoxy paint version
  • Approved for hazardous areas, L/c-UL, ATEX, IECEx. Protection IP66 (EN 60529), NEMA 4X
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Fixed gas detector SERIE 3000 for oxygen and toxic gas

Loop-powered (4-20 mA 2 wires) and equipped with an LCD display, the Serie 3000 fixed oxygen and toxic gas detector is particularly well-suited for potentially explosive atmospheres (ATEX zones).

Fixed gas detector serie 3000 transmitter
  • Large range of pre-calibrated gas detection sensors
  • Loop-powered, 2 cables
  • LCD screen for setup and concentrations display
  • Aluminum version or stainless steel with epoxy paint version
  • Approved for hazardous areas, L/c-UL, ATEX, IECEx. Protection IP66 (EN 60529), NEMA 4X
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NO2 respiratory protection (nitrogen dioxide)

Nitrogen dioxide is a toxic and asphyxiating gas with important suffocation risks. It is recommended to use an opened-circuit self-contained breathing apparatus (SCBA) or an air supplying respirator for long-term applications.

Especially designed for industrial applications, the self-contained breathing apparatus R-Pas combines reliability, performance and comfort of use. Composed by an SCBA mask, a compressed air cylinder and a harness, the R-Pas complete set is provided in its carrying case.

  • complete SCBA set R-pas kit by Dräger: a full self-contained breathing apparatus in its carrying case
  • Efficient weight balance
  • Air supply hose and manometer integrated to the harness
  • Full face respiratory protective mask
  • Provided with high visibility orange carrying case
  • Well suited for use in ATEX zones
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R-Pas complete SCBA set with carrying case

Especially designed for industrial applications, the self-contained breathing apparatus R-Pas combines reliability, performance and comfort of use. Composed by an SCBA mask, a compressed air cylinder and a harness, the R-Pas complete set is provided in its carrying case.

complete SCBA set R-pas kit by Dräger: a full self-contained breathing apparatus in its carrying case
  • Efficient weight balance
  • Air supply hose and manometer integrated to the harness
  • Full face respiratory protective mask
  • Provided with high visibility orange carrying case
  • Well suited for use in ATEX zones
Additional information

Especially designed for use in industrial applications, the R-Pas set is a self-contained breathing apparatus with reduced maintenance needs. It combines performance, reliability and comfort of use.

Particularly lightweight and multifunction, this open-circuit SCBA is an ideal solution in presence of toxic gases or for use in poorly oxygenated environments. As it is compliant with the EN 137-2 standard, the R-Pas set is also recommended for fire interventions. Thus it is widely used by firefighters all around the world.

Delivered complete in its high visibility orange carrying case, the R-Pas is part of the latest generation of self-contained breathing apparatus. It is composed by an SCBA mask, a compressed air cylinder and a harness.

The harness is lightweight and easy to don. It is equipped with a factory pre-set flow regulator and a demand flow regulator. Thanks to its lightweight, antistatic and shock resistant design and rubber protection for the manometer, this harness is especially made for use in the harshest environments. Its harness is made of lightweight flameproof buckles, adjustable straps and rubber backplate highly resistant to chemical products. This way, the R-Pas SCBA is well-suited for fire situations. Moreover air supplying and manometer hoses are directly mounted into the harness backplate for better comfort.

The SCBA mask included in the R-Pas set is made of elastomer for easy adjustment and perfect fit with any shape of face. Thanks to its dual airtight seal and a 180° visor, this respiratory protective mask offers an outstanding comfort of use and a large distortion-free field of view for an excellent peripheral view. Furthermore this mask is provided with a specific bag in order not to be damaged or scratched during transport in the carrying case.

The compressed air cylinder that is also included in the R-Pas set is lightweight and robust. Made of lightened steel, this cylinder is equipped with an EN tap. Thanks to its 6 liters capacity at 300 bars, this compressed air cylinder provides clean air for approximately 40 minutes for safe interventions.

The high visibility orange carrying case has been especially designed to carry the full SCBA R-Pas set, including the connected cylinder and is ready for use.

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The X-plore 9300 is a supplied air respirator that provides constant air flow to its user. Especially designed for simple industrial applications, this device offers comfort of use and improved safety.

  • The X-plore 9300 supplied air respirator by Drager, SAR system for better safety
  • 3 to 10 bar inlet pressure
  • Integrated pressure reducer
  • Safe air flow adjustment
  • Robust and easy to use
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Supplied air respirator X-plore 9300

The X-plore 9300 is a supplied air respirator that provides constant air flow to its user. Especially designed for simple industrial applications, this device offers comfort of use and improved safety.

The X-plore 9300 supplied air respirator by Drager, SAR system for better safety
  • 3 to 10 bar inlet pressure
  • Integrated pressure reducer
  • Safe air flow adjustment
  • Robust and easy to use
Additional information

The X-plore 9300 supplied air respirator system – or SAR - features enhanced functions such as a patented pressure reducer or a self-check function to provide optimal comfort of use and improved safety. Especially designed for simple industrial applications, the X-plore 9300 provides a continuous air flow to its user.

In compliance with the EN 14954 standard, the X-plore 9300 airline respirator is a compact and lightweight device – less than 0.5 kg – that shall be worn on belt. Thanks to supply hose connectors, this supplied air respirator system provides constant air flow into a facepiece (respiratory protective mask, full hood or half-hood) with increased flexibility. Fully compatible with the X-plore 8000 SAR facepieces series, the X-plore 9300 airline respirator also features a pressure regulator that enables user to adjust the injected air flow between 200 and 1,200 liters per minute. It can also be used with helmets and protective visors.

The integrated auto test function automatically turns on once the device is powered. Thanks to this function, the user doesn’t need to control the proper operation of the device before each use. This way, users significantly gain time to operate. An alarm whistle is added to this auto test unit in order to indicate that the device can properly operate and to alert in case of insufficient air supply. Moreover, this supplied air respirator system requires no particular maintenance. Spare parts of this device can also be easily replaced at lower cost.

Particularly robust and easy to use, the X-plore 9300 SAR has been designed for use in demanding environments and is even approved for use in potentially explosive areas.

The X-plore 9300 constant flow supplied air respirator system is compatible with a whole range of accessories including standard belt, leather belt or decontaminable belt but also a range of 3 to 50 meters air supply hoses for hoods, helmets or visors. The X-plore 9300 can also be connected to the X-plore 4740 half-mask or to the X-plore 6300, Panorama or FPS 700 full face masks.

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The M20.2 is the world’s smallest emergency escape breathing device (or EEBD). Compact, lightweight and ergonomic, it can be easily belt-mounted.

  • emergency escape breathing device M20.2
  • On use / stand-by duration : 15-20 minutes / 32 minutes
  • Donning time : less than 10 seconds.
  • Compact and lightweight: 18.3 x 16.5 x 7.9 cm – less than 1 kg.
  • Can be refurbished after use.
  • Compressed oxygen air supply.
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Emergency escape breathing device M20.2

The M20.2 is the world’s smallest emergency escape breathing device (or EEBD). Compact, lightweight and ergonomic, it can be easily belt-mounted.

emergency escape breathing device M20.2
  • On use / stand-by duration : 15-20 minutes / 32 minutes
  • Donning time : less than 10 seconds.
  • Compact and lightweight: 18.3 x 16.5 x 7.9 cm – less than 1 kg.
  • Can be refurbished after use.
  • Compressed oxygen air supply.
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Well-suited for emergency evacuation from confined spaces, the OXY 3000/6000 is a SCSR self-contained self-rescue device that chemically produces breathable air. Different versions offer from 30 up to 60 minutes autonomy.

  • drager SCSR oxy 3000 6000 oxygen self rescuer for emergency escape
  • Up to 60 minutes autonomy.
  • Shock absorbent shell to protect the device.
  • Safety Eye for easy visual safety check.
  • Dimensions: 265 x 217 x 125 mm for less than 4 kg.
  • Approved in compliance with SA 89/686/CEE DIN EN 13794 standards and Australian coal mining.
  • Storage shelf life up to 10 years.
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Self-rescuer SCSR OXY 3000/6000

Well-suited for emergency evacuation from confined spaces, the OXY 3000/6000 is a SCSR self-contained self-rescue device that chemically produces breathable air. Different versions offer from 30 up to 60 minutes autonomy.

drager SCSR oxy 3000 6000 oxygen self rescuer for emergency escape
  • Up to 60 minutes autonomy.
  • Shock absorbent shell to protect the device.
  • Safety Eye for easy visual safety check.
  • Dimensions: 265 x 217 x 125 mm for less than 4 kg.
  • Approved in compliance with SA 89/686/CEE DIN EN 13794 standards and Australian coal mining.
  • Storage shelf life up to 10 years.
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CEN-PAQ is very convenient and ideal for short interventions (15, 20 or 30 minutes), highly polluted environment applications or for emergency rescue in confined space or stale environment.

  • High visibility fireproof jacket with VELCRO fastener
  • Warning whistle and pressure gauge
  • Vision3, Promask or Panaseal full face masks
  • Stainless steel or composite compressed air cylinder
  • Compliant with EN137, EN136; EN139 standards
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Self-contained breathing apparatus – CEN-PAQ

CEN-PAQ is very convenient and ideal for short interventions (15, 20 or 30 minutes), highly polluted environment applications or for emergency rescue in confined space or stale environment.

Self-contained breathing apparatus CEN-PAQ
  • High visibility fireproof jacket with VELCRO fastener
  • Warning whistle and pressure gauge
  • Vision3, Promask or Panaseal full face masks
  • Stainless steel or composite compressed air cylinder
  • Compliant with EN137, EN136; EN139 standards
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