The Barts Charity Children's Environmental Health Clinic

The study will be based from a newly formed NHS service, the children's environmental health service. Participants will be children with a known chronic respiratory condition. Participants will undergo personal environmental exposure monitoring as well as home environmental assessments, before personalised exposure reports will be provided including a summary of their exposure and advising mitigation strategies based on exposure patterns and behaviours. The monitoring will be repeated after introduction of mitigation strategies. This will allow a comparison of the effectiveness of each method of mitigation.

Inclusion Criteria: * Parent/Guardian able to provide written informed consent Referral made by paediatric asthma team Child aged 4-17 years at the time of consent to study A diagnosis of a chronic respiratory condition (diagnosis by a medical professional) Contactable for regular follow up by the research team Reasonable level of English language Ability to engage with technology and devices used in the study Exclusion Criteria: * Inability to use the tools and devices in the research study Inability to visit the hospital for the initial hospital visit Inability to allow home environmental assessment