Why Does VOC (Volatile Organic Compounds) Require a Fixed Detector?
VOCs (Volatile Organic Compounds) are continuously generated during work in paint booths, printing rooms, cleanrooms, semiconductor processes, and adhesive-use areas. Because VOCs keep accumulating even when workers move around or step away, a fixed gas detector capable of 24-hour continuous monitoring is a more effective environmental-management tool than a portable one. The WANDI FIX800 is a fixed gas detector optimized for permanent zones where VOCs may always be present — paint booths, cleanrooms, laboratories, and more.
💡 Why a Fixed Type Is Needed
VOCs cannot be monitored continuously with a portable detector. The FIX800 detects leaks in real time even during worker-absent hours, at night, and in unmanned zones, and sends an alert to the manager.
Health Effects of VOCs on the Human Body
VOCs have serious health effects in both short-term acute exposure and long-term chronic exposure. Benzene is a confirmed IARC Group 1 carcinogen, and toluene, xylene, and others are toxic to the central nervous system.
| VOC Type | TWA Standard | Acute Symptoms | Chronic Effects |
|---|---|---|---|
| Benzene | 0.5 ppm | Headache, nausea, dizziness | Leukemia (IARC Group 1) |
| Toluene | 50 ppm | Fatigue, reduced concentration | Neurotoxicity, liver/kidney damage |
| Xylene | 100 ppm | Eye/nose irritation | Nervous system disorders |
| Styrene | 20 ppm | Headache, clouded consciousness | Central nervous system damage (IARC 2A) |
| IPA·Acetone | 200 ppm | Eye/skin irritation | Dermatitis with repeated exposure |
※ Source: IARC Monographs Vol. 100F, Korea MoEL Work-Environment Exposure Limits (2024)
Real VOC Occupational Disease Accident Cases
🇰🇷 Group VOC Exposure at a Printing/Painting Plant in Gyeonggi (2020)
In 2020, at a combined printing/painting plant in Gyeonggi Province, 8 workers complained of headache, nausea, and dizziness the day after nighttime painting work and were recognized as having industrial accidents. The investigation found that the ventilation system was shut off at night, and the absence of a fixed VOC detector meant the abnormal concentration went unnoticed. (Source: Korea MoEL occupational safety & health accident cases, 2020)
🇧🇪 IPA Poisoning at a Belgian Pharmaceutical Cleanroom (2018)
In 2018, at a pharmaceutical company cleanroom in Belgium, VOC concentration rose sharply during IPA (isopropyl alcohol) cleaning work, and 4 workers showed headache and respiratory irritation symptoms. Without a fixed VOC detector installed, the concentration rise could not be tracked in real time, and the facility subsequently adopted FIX800-class fixed detectors. (Source: Belgian Federal Public Service Employment, accident investigation report 2018)
Scenario: Preventing a VOC Accident with the FIX800
- 1VOC rises during nighttime painting work: The FIX800 detects a TWA-exceeding concentration in real time and raises a primary alarm
- 2FIX-DS display board indication: A red alarm is shown on the large LED display board in the security office/office
- 3Ventilation fan auto-operation: The ventilation fan starts automatically via relay output → dilutes the concentration
- 4Worker evacuation: Workers evacuate the moment they receive the on-site alarm, and painting work is temporarily suspended
- 5Cloud history logging: The time, concentration, and duration of the anomaly are saved automatically, used as legal records for work-environment measurement
WANDI FIX800 Fixed VOC Gas Detector Key Specifications
| Item | Specification |
|---|---|
| Measured gases | VOC (TVOC) — 5-gas simultaneous measurement possible (O2, CO, H2S, LEL combinable) |
| Sensor type | PID (photoionization detector) |
| Measurement range | 0~10 ppm / 0~100 ppm / 0~1,000 ppm (model-selectable) |
| Alarm stages | Primary/secondary independently configurable (e.g., TWA limit / STEL limit) |
| Output | 4~20mA analog, RS-485, 3 relay contacts |
| Integration functions | FIX-DS display board, ventilation fan, warning light, DCS/BMS integration |
| Cloud | Real-time data transmission and history logging (legal data for work-environment measurement) |
| Operation mode | 24-hour continuous monitoring |
💡 FIX800 5-Gas Simultaneous Measurement
Beyond VOC (TVOC), the FIX800 can simultaneously measure O2 (oxygen), CO (carbon monoxide), H2S (hydrogen sulfide), and LEL (combustible gas) in a single unit. It is especially useful in environments like paint booths and cleanrooms where, alongside VOCs, oxygen-deficiency or combustible-gas hazards exist at the same time.
VOC FIX800 Installation Cases
FIX800 VOC Detector Application Environments
| Installation Environment | Target VOCs | FIX800 Use |
|---|---|---|
| Paint/coating booths | Toluene, xylene, benzene | Ventilation fan auto-interlock, TWA-exceedance alert |
| Semiconductor/display cleanrooms | IPA, NMP, acetone | Continuous monitoring of ppb-level low concentrations |
| Printing/publishing rooms | Toluene, isopropanol | 24-hour monitoring of ink/cleaning zones |
| Pharmaceutical laboratories | Ethanol, IPA, methanol | GMP-compliance evidence via cloud history |
| Wood/furniture plants | Formaldehyde, acetaldehyde | Alarm interlock for adhesive/laminating zones |
A Closer Look at the WANDI FIX800
Below are real photos of the WANDI FIX800 fixed multi-gas detector.
