Experts in gas detection and respiratory protection
Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages
portfolio
acf-field
text-blocks

Sulphur dioxide (SO2)

This page presents information on sulfur dioxide – or sulfurous anhydride – (SO2), appropriate detection means (SO2 detector) and suitable respiratory protective equipment (gas mask or powered air purifying respirator with E gas filter).

SO2 detector and sulfur dioxide respiratory protection

Sulfur dioxide properties

Sulfur dioxide (SO2) – also called sulfurous anhydride – is present in many fields of activity such as the pulp and paper industry, power plants, the cooling industry and fossil energy combustion (coal and fuel). It is also used for wine growing application (sulfiting). Even if it can be naturally found near volcanoes, this gas is essentially anthropogenic (man-made).

CASTWA (8 hours)STEL (15 minutes)LELIPDensity / AirFilter / SCBA
7446-09-52 ppm (TWA)5 ppm (STEL)12.3 eV2.26E

Sulfur dioxide effects on health

Sulfur dioxide (SO2) is a colorless gas with a pungent fragrance that may cause breathing system and eyes irritation starting at 1 ppm! Even if it is corrosive and harmful, this gas is above all toxic. It has been classified as R23 (toxic by inhalation) and R34 (causes burns). Lastly, sulfur dioxide is very reactive with many solvents (alcohol, toluene), and particularly with water to produce sulfuric acid (H2SO4). SO2 is also responsible for acid rain.

Sulfur dioxide effects on health (SO2)

Sulfur dioxide effects on health (SO2)

Sulfur dioxide detector (SO2)

Despite its pungent and irritating smell, only an SO2 gas detector can accurately measure concentrations of this highly toxic gas. It is recommended to use a ppm or ppb sulfur dioxide detection.

Area gas monitor – RADIUS BZ1

The Radius BZ1 is a high performance area gas monitor. As it is made with rough materials, it suits in the most demanding ATEX standards and the harshest environments.

  • Industrial scientific area gas monitor Radius BZ1 for workers safety
  • Detection of combustible gases, Cl2, CO, H2, H2S, HCN, NH3, NO2, O2, SO2 and VOC.
  • Duplicate 108 dB audible alarm and red & blue LED visual alarm
  • Runtime: 168 hours without pump (7 days) and 84 hours with pump
  • Dimensions: 29 x 29 x 55 cm – weight 7.5 kg – 11.2 cm LCD display
  • Available with optional LENS wireless technology

Request a quote

Area gas monitor – RADIUS BZ1

The Radius BZ1 is a high performance area gas monitor. As it is made with rough materials, it suits in the most demanding ATEX standards and the harshest environments.

Industrial scientific area gas monitor Radius BZ1 for workers safety
  • Detection of combustible gases, Cl2, CO, H2, H2S, HCN, NH3, NO2, O2, SO2 and VOC.
  • Duplicate 108 dB audible alarm and red & blue LED visual alarm
  • Runtime: 168 hours without pump (7 days) and 84 hours with pump
  • Dimensions: 29 x 29 x 55 cm – weight 7.5 kg – 11.2 cm LCD display
  • Available with optional LENS wireless technology

Request a quote
Learn more

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
  • Additional information
Request a quote

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.

Request a quote
Learn more

Portable multigas detector – VENTIS PRO5 – up to 5 gases

The Ventis Pro5 detector is equipped with new features such as a panic button to improve safety of workers evolving in hazardous areas.

Detection of the combustible gases, NH3, CO, CO/H2S, H2S, HCN, NO2, O2, SO2, CO2, HC.

  • Dimensions: 104 x 58 x 36 mm – weight: 200 grams without pump
  • Audible (95 dB), LED visual (2 red and 2 blue) and vibrating alarms
  • Rechargeable lithium-ion battery with optional extended battery
  • Polycarbonate housing with waterproof rubber overmold (IP68)
  • Datalogging over 3 months with 10 seconds interval
Request a quote

Portable multigas detector – VENTIS PRO5 – up to 5 gases

The Ventis Pro5 detector is equipped with new features such as a panic button to improve safety of workers evolving in hazardous areas.

Detection of the combustible gases, NH3, CO, CO/H2S, H2S, HCN, NO2, O2, SO2, CO2, HC.

  • Dimensions: 104 x 58 x 36 mm – weight: 200 grams without pump
  • Audible (95 dB), LED visual (2 red and 2 blue) and vibrating alarms
  • Rechargeable lithium-ion battery with optional extended battery
  • Polycarbonate housing with waterproof rubber overmold (IP68)
  • Datalogging over 3 months with 10 seconds interval
Request a quote
Learn more

Toxic corrosive & combustible gas detector – satellite xt

The Satellite XT is a fixed gas detector with interchangeable sensors. It is especially designed to continuously monitor hazardous concentrations of gases.

Detected gases: AsH3, BBr3, B2H6, BCl3, BF3, Br2, C2H4O, Cl2, ClF3, ClO2, CO, COCl2, F2, GeH4, H2, H2S, H2Se, HBr, HCl, HCN, HF, HMDS, MCF, MMH, N2H4, NH3, NO, NO2, O2, O3, PH3, POCl3, SiCl4, SiHCl3, SO2,TBA, TBP, TDMAT, TEOS, TMB, TMP, UDMH, WF6.

  • Fxed gas detector Satellite XT
  • Pyrolysis module detection: C4F6, C5F8, CH3F, DCE 1.2, NF3, SF6
  • Pre-calibrated interchangeable sensors, easy maintenance
  • 4-20mA linear output
  • 3 optional single-pole relays
  • Optional remote measure (up to 3 meters)
Request a quote

Toxic corrosive & combustible gas detector – satellite xt

The Satellite XT is a fixed gas detector with interchangeable sensors. It is especially designed to continuously monitor hazardous concentrations of gases.

Detected gases: AsH3, BBr3, B2H6, BCl3, BF3, Br2, C2H4O, Cl2, ClF3, ClO2, CO, COCl2, F2, GeH4, H2, H2S, H2Se, HBr, HCl, HCN, HF, HMDS, MCF, MMH, N2H4, NH3, NO, NO2, O2, O3, PH3, POCl3, SiCl4, SiHCl3, SO2,TBA, TBP, TDMAT, TEOS, TMB, TMP, UDMH, WF6.

Fxed gas detector Satellite XT
  • Pyrolysis module detection: C4F6, C5F8, CH3F, DCE 1.2, NF3, SF6
  • Pre-calibrated interchangeable sensors, easy maintenance
  • 4-20mA linear output
  • 3 optional single-pole relays
  • Optional remote measure (up to 3 meters)
Request a quote
Learn more

SO2 respiratory protection (Sulfure dioxide)

As sulfur dioxide is irritating to the eyes, it is recommended to use an E filter with a full-face mask for short interventions or, for long working periods, a full PAPR. A self-contained breathing apparatus (SCBA) is required if concentrations exceed 60 times the OEL.

Full face gas mask – SARI

The SARI gas mask provides operating comfort and efficient protection against toxic gases and particles (solid, radioactive, smokes), bacteria and virus.

  • Compatible with PRO2000 filter range (gas, particle and combined)
  • Central phonic membrane for easy communication
  • Compatible with powered air equipment
  • Internal mask with non-return and anti-fog valves, reduces CO2
  • Fully adjustable 5 points harness for improved operating comfort
Request a quote

Full face gas mask – SARI

The SARI gas mask provides operating comfort and efficient protection against toxic gases and particles (solid, radioactive, smokes), bacteria and virus.

masque sari contre les gaz toxiques et vapeurs chimiques
  • Compatible with PRO2000 filter range (gas, particle and combined)
  • Central phonic membrane for easy communication
  • Compatible with powered air equipment
  • Internal mask with non-return and anti-fog valves, reduces CO2
  • Fully adjustable 5 points harness for improved operating comfort
Request a quote
Learn more

Powered air purifying respirator Duraflow

The Duraflow powered air respirator is a versatile solution for hazardous workspaces. It provides a quality respiratory protection for a fair price.

  • The powered air purifying respirator Duraflow PAPR
  • Compatibility with RD DIN 40 universal filter cartridges
  • Rechargeable battery – 2 available version: 8 or 16 hours runtime
  • Automatic airflow regulation (160l/min)
  • Visual alarms, notifications and display
  • CEN1294 & CE0086 certified, IP55/IP67

Request a quote

Powered air purifying respirator Duraflow

The Duraflow powered air respirator is a versatile solution for hazardous workspaces. It provides a quality respiratory protection for a fair price.

The powered air purifying respirator Duraflow PAPR
  • Compatibility with RD DIN 40 universal filter cartridges
  • Rechargeable battery – 2 available version: 8 or 16 hours runtime
  • Automatic airflow regulation (160l/min)
  • Visual alarms, notifications and display
  • CEN1294 & CE0086 certified, IP55/IP67

Request a quote
Learn more

Powered air purifying respirator PROFLOW 2

The Proflow2 PAPR is a compact and lightweight device featuring a curved backplate for user comfort during long-term applications. This powered air purifying respirator is available in 120L/min or 160L/min versions.

  • complete Scott Safety PAPR powered-air-purifying Proflow2
  • DIN40 standard filters compatible with single-cartridge masks.
  • From 7 to 15 hours runtime depending on the face piece.
  • 70 dB audible low battery alarm.
  • Compatible with many face pieces.
  • Certifications: complies with EN12941 and 12942 standards.
Request a quote

Powered air purifying respirator PROFLOW 2

The Proflow2 PAPR is a compact and lightweight device featuring a curved backplate for user comfort during long-term applications. This powered air purifying respirator is available in 120L/min or 160L/min versions.

complete Scott Safety PAPR powered-air-purifying Proflow2
  • DIN40 standard filters compatible with single-cartridge masks.
  • From 7 to 15 hours runtime depending on the face piece.
  • 70 dB audible low battery alarm.
  • Compatible with many face pieces.
  • Certifications: complies with EN12941 and 12942 standards.
Request a quote
Learn more

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.

Request a quote

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.

Request a quote
Learn more
Contact us