Striking a balance between good air quality and good comfort levels should be at the centre of any indoor air quality strategy.
Temperature and humidity both have significant
impacts on occupant comfort and wellbeing - and both are adversely
affected by increased ventilation. Uncomfortable temperatures
affect concentration, productivity and cause general discomfort.
Low humidity, which can occur when ventilation and/or heating dry
out the surrounding air, can provoke skin symptoms, nasal dryness
and congestion. Excess humidity, meanwhile, encourages the
production of dust mites and mould, leading to respiratory
Dual-channel data loggers that measure both
temperature and relative humidity can be used to simultaneously
measure both parameters. Like CO2 data loggers, these
should be placed away from openings, such as windows and doors
(where draughts can affect the accuracy of readings), and in a
location that is representative of overall conditions.
The data can be compared and contrasted with data gathered from
CO2 monitoring to identify a correlation (or
lack thereof) between ventilation rates and temperature and
Results from concurrent CO2, temperature and humidity
monitoring can then be used to inform a well-rounded
ventilation strategy that prioritises air quality and
comfort. Suitable strategies could include regularly
ventilating rooms between periods of occupancy so that occupants
are less affected by changes in ambient conditions. Any strategies
that are implemented should be evaluated with further monitoring to
determine their efficacy.
Monitoring for Energy Efficiency
CO2 Data Loggers: Visualising Air Quality
Go back to:
How to Monitor Air Quality Effectively
References and further reading