*7.2.41 List the causes of extremely low humidity levels and their implications
- High air leakage and over ventilation in winter
- Low humidity can irritate and worsen symptoms of asthma
- Sinus infection
- Encourage sickness by dehydration
- Causes static electricity
- Dries plants
- Can also cause problems with furniture and building materials due to shrinkage
- Can encourage spread of viruses
