Humidity, cause of unhealthiness
Mushrooms (cryptogams)Once installed, mushrooms grow quickly on any kind of base, if humidity and temperature favor them. Their presence may generate respiratory pathologies such as rhinitis, asthmas or infections due to the inhalation of toxins they make.
MitesMites measure about a quarter of a millimetre and especially like darkness and humidity. Their dejections, accumulated in carpets, textile floors, sofas or beddings are responsible for occupants’ allergies.
LeadHumidity also triggers the degradation of building materials, paintings in particular, and produce lead exposure risk. In the dusts of obsolete housing, lead affects the occupants’ health, especially young children, via lead poisoning.
Polluted indoor air?
Mode of living and constructionAmbient air contains the humidity generated by showers, washing, clothes drying, cooking, plants and occupants themselves (For instance, a hot shower produces 2000 grams of water vapour per hour and an active person, 100 g/h).
Moisture can also come from linkage, infiltration, rising damp or migrating damp. Also, construction fault in walls or windows thickness gives rise to thermal bridges, where humidity sets up.
Buildings are more and more insulated to reduce air infiltrations and save energy. As a consequence, indoor air is often stuffy and not enough renewed. But, healthy air goes through its regular renewal.
Air quality diagnosticThe measurement of humidity content, temperature and CO2 in a room allows to determine if indoor air renewal is right.
On the other hand, the measurement of pollutants such as benzene or formaldehyde is now part of indoor air quality monitoring in public opened buildings.
Air management and energyAn appropriate system of indoor air management and the suppression of pollution sources such as wall moisture, some heating units or materials allow rehabilitating a building, while limiting its environmental impact.
This moisture meter for building materials allows to measure water content of screed, floor screed, drywall, heavy concrete brick, brick…
Adjustable thanks to it optional sensors:
- Infrared surface temperature probe
- Thermo-humidity probe
- CO2 probe
Four-in-one system: two-pin-contact moisture meter, in depth radiofrequency moisture detector, infrared thermometer, fast responding thermo-hygrometer.
- intuitive user interface with color screen,
- data logging,
- firmware upgradable,
- psychometric calculations,
- non-contact IR temperature probe with laser pointer.
Did you know?
Indoor air emissions
This IAQ labelling involves the manufacturers, the importers and the distributors of the products as well as contractors in France.