In developed countries, allergens, gas cooking and tobacco smoking represent a majorrisk, whereas in many developing countries wood stoves and indoor fuel cooking are moreimportant.Building-related illnesses represent another problem. The effects of indoor pollution are getting worseby poor living conditions and poor ventilation.

This paper is a review of data collected in European dwellings on particulate matter (PM), nitrogen dioxide (NO2), carbon dioxide (CO2), carbon monoxide (CO), volatile organic compounds (VOCs), formaldehyde, dampness/mould and dust mites at home. Related health effects are summarized in this review too, along with some results not yet published from two Italian indoor air studies.

For that study, 200 children in Manchester were recruited to assess their asthma status, their indoor environment was analyzed. Levels of a variety of indoor agents, reported as important factors in the development or the exacerbation of respiratory troubles were examined. Results are presented.

The aim of that study is to produce guidance in adequate ventilation in new domestic buildings. The paper gives a description of the development and application of a method for measuring the mean ventilation rate in occupied homes with the measurement of indoor air pollutants. Results are presented.

The aim of that study was to carry out an air quality survey of 10 homes with flueless heaters fuelled by natural gas. Procedure, instrumentation and results are presented along with a comparison of survey date with guidelines.

This paper is a review of almost two decades work on pollution sources in ventilation systems. There is a special emphasis on ventilation filters with reference to the work of other researchers. A view into future research and developement with engineering solutions is also presented.

In this paper, practical recommendations for design and operation of HVAC systems are presented. The result of a proper maintenance will be less pollution and a better indoor environmental quality.

This paper emphasizes on the role of hydroxyl radicals in indoor processes, on chemical reactions occurring on indoor surfaces, and the impact of products of indoor chemistry on building occupants. The products of indoor chemistry can impact comfort and health, but the importance of those effects and the frequency of their occurrence remains to be elucidated.

This paper presents an overview of what is known related to particulate matter indoors. An information for understanding filtration is given along with the way how particles contribute to adverse health effects.

Temperature and humidity changes can affect building materials and the building structure (deformation or breakage). A research was carried out by a holographic interferometer.Thanks to those investigations of temperature and humidity deformation, it has been made possible to give recommendations on maintenance in Russian churches and cathedrals.