What do CO2 monitors do?
- They measure the part per million of CO2 in an enclosed space.
In this context, CO2 is the air expelled from the lungs of the people in that space.
The higher the CO2 reading, the greater the amount of rebreathed air in the room/ the more people are sharing each other’s exhaled air.
How do CO2 monitors work?
- They identify poorly ventilated areas
- They can assess the transmission risk of airborne viruses*
Mitigating poor ventilation is most important in spaces where multiple people interact over
long periods of time. (offices, meeting rooms, classrooms, gyms, restaurants, shops)
Why is CO2 monitoring important?
Air quality matters; airborne virus or not. CO2 build-up in an enclosed space is unhealthy.
Under “normal” circumstances, it leads to brain fog, drowsiness, and lack of focus and productivity.
(you know that sleepy feeling you get after lunch? ) - you didn’t get that feeling after breakfast or morning tea did you? Even if you ate all your lunch at tea time?! Food has been given a bad rap. It’s not your digestive system taking over your brain’s energy, it’s a build-up of CO2 over the morning!
If someone in that enclosed space is sick, they are exhaling into that shared air. If the CO2 reading increases, more people are inhaling that unhealthy, shared air.
The risk of transmission of sickness is, therefore, greater when CO2 levels are high.
CO2 monitors are relatively low cost and are likely to be the only viable tool that can enable
building occupants and managers to easily evaluate their ventilation.
How to improve ventilation with CO2 monitors:
- inform when ventilation is needed (alert)
- actively support the management of ventilation (report)
- assess the efficacy of ventilation (evaluate)
Ventilation provides air circulation in an enclosed space. This air movement helps move a constant supply of fresh air into your building, exchanging fresh air for stale as it helps move airborne particles out of your enclosed space.
There are different ventilation strategies recommended for different risk levels.
An alert for increasing risk lends itself to human intervention ventilation strategies like opening windows on opposite sides of a room to create a cross breeze, exchanging old air for new.
Alerts for urgent intervention may require having to vacate a room or introduce mechanical ventilation. Mechanical ventilation systems rely on fans, ventilating equipment, and other mechanical devices to produce healthy indoor air.
It is important to note that there are many different types of HVAC systems (heating, ventilating and air conditioning systems)and not all of them include the supply of fresh, clean air, they only heat/cool as they recirculate air to provide thermal comfort.
If you have an HVAC system, key questions to ask your provider include:
- does the system recycle air, or use fresh air?
- can the ratios of fresh air and recycled air change?
- is there a filter in the system and what type is it?
- what is the maximum feasible air change rate the system can deliver?
Mechanical ventilation is very common but can increase your energy expenses as a result of the electricity the equipment uses.
CO2 monitoring used in conjunction with mechanical ventilation can help manage increased energy costs by ensuring the mechanical ventilation system is used only when necessary.
Tethers CO2 monitoring device: The EnviroQ
Tether’s EnviroQ monitor is trusted by Kāinga Ora (ex HNZ) and leading schools to inform best Health Pocket Planet outcomes.
- Our devices are designed and manufactured in New Zealand. From the birth of a Tether device until its eventual end of useful life we’ve kept the value within New Zealand.
- No wifi required
- 1 year battery life.
Even our batteries are sourced from a New Zealand battery manufacturer. All used batteries are recycled with an impressive 80% efficiency by New Zealand’s only waste battery recycler to be certified with ISO 45001, ISO 14001, and ISO 9001.
- Designed for frictionless setup. All Tether devices can be set up within the Tether platform within 30 seconds using the Tether management application.
Monitoring, Tethers platform and COVIDCare
Visibility of real time health risk is of paramount importance. Tether’s software takes the real-time risk and tracks performance over time, which in turn adds insight into your enclosed space’s pattern of performance.
- The Tether platform was built as an enterprise-grade, cloud-delivered platform that allows you to view and manage all your Tether enabled buildings or enclosed spaces.
- The platform provides a dashboard, alerting, and reporting capabilities. This enables large-scale monitoring, management, interpretation, and visualization of all Tether connected devices.
- Real-time visibility of all spaces on one screen
- Public-facing display for customers/staff/parents (if requested)
- Monthly report provides a snapshot of performance over time
- Actionable insight informs shareholders/governing bodies of the proven need for intervention
- Measures impact of response
Tether knows that data without insight, solutions and action has no value proposition.
- Specialist environment analysts are on hand to assess your building’s ventilation performance and recommend an efficient, effective, Health Pocket Planet response
- Tether’s large network of trusted ventilation providers enables actionable outcomes
Long after COVID has become endemic, clean, healthy air will be the foundation for business continuity and workplace wellbeing