Rarely has there been so much talk about ‘ventilation’ as in the past and current year. No wonder, since the exchange of air in rooms was and still is considered a tried and tested means against potential corona virus load caused by infectious aerosols. So far, there is no measuring device that is able to prove the contamination of indoor air by SARS-CoV-2. However, it is possible to determine a necessary ventilation interval via the ‘detour’ of a permanent measurement of CO2 values. Because the more people are in living rooms, office spaces, production rooms, schools and daycare centres, the more the exhaled carbon dioxide level increases – to the point of a CO2 alarm: time to open all the windows!
Every person needs around 12,000 litres of breathing air each day, metabolising oxygen in their body into carbon dioxide (CO2). As a result, the air that we breathe out has 4% less oxygen – but 4% more CO2. No problem, as long as we are outdoors. However, in closed room, the life-giving oxygen in the air is quickly depleted. We react to the continuous increase in the proportion of CO2 with an increased susceptibility to fatigue and a significant loss of performance. It is therefore advisable to continuously monitor CO2 values in closed rooms with climate measuring devices such as the air quality monitor BZ30, the professional air quality data logger BZ30 or the particle measuring device BQ30 from Trotec- especially in public facilities such as daycare centres and schools, but also in private households. This ensures a sufficient supply of oxygen in good time, provided that the ventilation behaviour is correct. At the same time, this also reduces the pollution of indoor air by corona virus.
How to ventilate correctly – according to DIN standards 1946-6
Just open all the windows to ventilate? Practice shows that it is not that simple, especially during the cold season. Incorrect ventilation actually worsens the air quality indoors and also wastes valuable heating energy. This is why the ‘correct’ ventilation according to the standard of the German Institute for Standardisation (DIN) has proven its worth: the DIN standard 1946-6 specifies how often and more importantly how long fresh air should be allowed into the room in order to guarantee a perfect indoor climate.
- You should open windows completely four times a day, not just tilt them, and reduce the heating:
for at least 30 minutes in June, July and August,
for 20 minutes in September and May,
for 15 minutes in October and April,
for 10 minutes in November and March,
for 5 minutes from December to February.
- Even if you are not at home during the day, you should still allow for draught in the rooms at least three times a day: ideally once early in the morning and twice in the evening. If you take a bath in the evening, it makes sense to ventilate the room for longer afterwards.
- Cross-ventilation ensures a faster exchange of air: by opening opposite windows, an air flow that quickly transports the stale air outside is created. If you do not have windows and doors opposite one another, you should simply ventilate for a little longer. You will save energy if you turn down the heating beforehand, if possible, and only open the windows when the radiators have cooled down.
- You should also ventilate longer after an energy modernisation. If energy modernisation measures, such as insulation or replacing windows, have been carried out, rooms must be ventilated for longer, as air can no longer be replaced via air leaks.
How to get on the track of the concentration killer CO2
With the compact and precise climate measuring devices and climate data loggers from Trotec you can monitor the room air in a targeted way. The sensitive sensors provide climate parameters such as CO2 value, humidity, relative humidity, temperature and dew point within seconds. Climate measuring devices such as the air quality monitor BZ25, the professional air quality data logger BZ30 or the particle measuring device BQ30 can be used in many ways: for measurements in residential, office, production and storage rooms as well as in schools and kindergartens or laboratories, in agriculture and in floristry.
- The air quality monitor BZ25 is ideal for offices, schools and kindergartens: it measures the CO2 content of the room air in 2-second intervals. An indicator helps with orientation – is this value already at a critical level? Then that means: open the windows and ventilate! This is easily forgotten, namely in offices and schools. The BZ25 always reminds you of this in good time!
- The BZ30 CO2 air quality data logger is an ideal measuring device combo for architects, experts and any builders of air conditioning, ventilation and heating systems. The BZ30 not only measures CO2 concentration, temperature and humidity in the room, but can also save up to 50,000 measurements. This means that unsupervised long-term measurements are also possible.
- The particle measuring device BQ30 shows you the 5 important values for good indoor air quality at a glance on its air quality monitor: On the large 3’’-colour LCD display, you can see the CO₂ load and the climate data, temperature and relative humidity, as well as the fine dust load in particle sizes PM2.5 or PM10. Therefore, like a CO2 traffic light, you can, if necessary, improve the indoor climate by supplying fresh air or by effectively using air purifiers, humidifiers or dehumidifiers.
Easy checking of Co2 concentration – thanks to innovative measuring devices from Trotec
Get comprehensive information on all of the ways our air quality management can benefit you. And on top of that you benefit from our current special offer prices because you get Trotec brand quality:
- the CO2 Air Quality Monitor BZ25 for only £158.56,
- the CO2 Air Quality Data Logger BZ30 for only £187.37,
- the Particle Measuring Device BQ30 reduced from £295.91 to only £171.77
incl. VAT – now in the Trotec Shop now!
Trotec practical knowledge ‘Tips for a better room climate’
1/7 Simply ban viruses, allergens and fine dust from your home
2/7 How to ventilate your room correctly and sustainably
3/7 How to avoid dry indoor air and reduce the risk of corona infection
4/7 How to prevent excessive indoor humidity
5/7 How to prevent health-threatening mould growth
6/7 How to banish bad odours and stench from indoor air
7/7 How to improve your well-being with indoor plants
