Monitoring indoor air quality

As more people occupy a space, carbon dioxide levels increase and there is less fresh air. Indoor exposure to this gas can affect performance and decision making and can also lead to headaches, restlessness and drowsiness. That is why it is important to act when its levels soar in work environments, schools, hospitality and fitness centers, either by reducing the number of occupants in a room or by increasing the ventilation rate (natural or mechanical). Nanoenvi IAQ uses a highly stable and accurate NDIR sensor with self-calibration capability for CO2 measurement.

Volatile organic compounds are toxins released by chemical products (cleaning and disinfection products, paints, varnishes, waxes, cosmetics, perfumes, deodorants, air fresheners, etc.). VOCs can cause serious short- and long-term health effects, from minor eye, nose, and throat irritations to liver and kidney problems. If VOC levels increase, it is advisable to increase ventilation or open windows to improve indoor air quality.

Suspended particles, also known as Particulate Matter (PM 1, 2.5, 4 and 10), are made up of a range of dust, dirt and liquid particles that are suspended in the air. Dust, fungi, bacteria, pollen are examples of particulate sources. The smaller and more invisible they are (such as PM 1 or 2.5), the more harmful they are to health, because they can be inhaled and penetrate deep into the respiratory system, causing everything from problems such as asthma and allergies to cancerous diseases. PM particles can remain in the atmosphere for quite some time and are freely transported by air currents. If these are released by a cough or sneeze, they can cause viral or bacterial infections. High levels of PM may indicate the need to use air filters or check HVAC system filters to mitigate exposure.

Carbon monoxide is present in ambient air when fuel or other carbon-based materials are in contact. Short-term exposure can cause dizziness or headaches, and long-term exposure can lead to respiratory illnesses. Vehicles, gas stoves, barbecues, generators, and poorly maintained ventilation equipment are the most common sources of CO indoors.

Optimum temperature conditions range between 20ºC and 23ºC. Any temperature above that can result in causing mental fatigue and affect performance and productivity. On the other hand, low temperatures can weaken the immune system and help the spread of viruses. Real-time monitoring of the temperature will allow you to make decisions such as adjusting the thermostat of the cooling system or deciding if it is necessary to open or close windows.

Indoors, humidity can be increased by deteriorating construction materials in buildings, water damage, and poor plumbing systems. It is recommended to always maintain relative humidity levels indoors between 40% and 60% to enjoy a healthy space and prevent the spread of viruses. Low relative humidity levels can affect performance and cause dry skin and eczema. Conversely, high humidity levels contribute to the growth of mold and consequently increase the risk of asthma, allergies, and respiratory diseases.

Atmospheric pressure is related to air flows causing bacteria, dust, and other airborne contaminants. If the air pressure inside an indoor space is lower than outside, the pollution in the room does not flow into the surrounding areas. Higher pressure within an interior room will prevent contaminants from entering.