What are the unique features of Qsafe CO₂ Sensor?

Technology We Use
Nondispersive Infrared (NDIR) CO2 Sensor

How does Qsafe CO2 sensor work and calculate Its concentration?

Our carbon dioxide (CO2) sensors are based on NDIR technology, which stands for Non- Dispersive Infrared radiation. This procedure is commonly used to detect carbon-based gases in the atmosphere, such as CO2. The CO2 gas enters the sensor, and light from the Infrared (IF) source falls on the CO2 molecules. These molecules absorb some light at a 4.26 µm wavelength. This absorption is directly proportional to carbon dioxide molecules and it gives the concentration of carbon dioxide. The sensor calculates the concentration on the basis of the absorption of light by gas molecules.

Why is it necessary to monitor carbon dioxide gas?

Carbon dioxide is a gas exhaled by human beings as a part of their respiration process. As the population grows and the number of individuals per square foot rises, CO2 concentrations can be substantially higher indoors than they are outside. The usual CO2 level in outdoor air is 400 parts per million or ppm, and it is now growing at a rate of 2 ppm every year. Indoors, due to stuffy rooms or insufficient ventilation, this level can reach up to 2000 ppm. Drowsiness, exhaustion, impaired thinking and decision-making skills, poor concentration, dizziness, migraines, and an elevated heart rate are all possible side effects. Coma, suffocation, and convulsions are some of the long-term effects. That is why it is essential to monitor CO2 concentrations indoors.

A study from the Cooperative Institute for Research in Environmental Sciences and the University of Colorado Boulder showed that monitoring carbon dioxide levels indoors can help in identifying the transmission risk of viral infections such as coronavirus. Researchers from MIT showed a relationship between pathogen concentration and exposure time. Other than this, to reduce the major health impacts of carbon dioxide such as Sick Building Syndrome reduced productivity, nausea, dizziness, absenteeism, etc.

Dimension

Sensor Calibration

Qsafe sensors are calibrated by the zero-point calibration method. This method reveals a range of measurements of the instrument. The zero point for sensor calibration is 400 ppm and the calibration cycle is of 96 hours (4 days) duration.

CO₂ Air Quality Index Score

Carbon dioxide is colorless, water soluble, inflammable, non-toxic gas. The gas has acidic odor and is naturally occurring in nature. Its is 53% more than of dry air. The gas can be found both indoor and outdoor environment. The key indicator of indoor air quality is carbon dioxide. The concentration of gas is increasing consistently in nature. The increase in its concentration is seen due to activities of human like deforestation, fossil fuel burning, fuel combustion, reaction between water and carbonate rock produces the gas_, volcanic eruptions and the process of respiration in which carbon dioxide is exhaled from the human body in environment.

A scientific study among working individual showed that at 945 ppm level 15% of workers were not able to make decision effectively whereas at 1400 ppm 50% of workers were not able to make decision effectively along with a control group of workers at 550 ppm exposure of CO₂.