Z Mathauserová | PubMed Health

PubMed2000

Effect of recirculation air cleaners on indoor air quality in a children's home.

The subject of this study was to assess the efficacy of the air cleaners provided by the Czech Power Company CEZ, J.S.C., and the foundation Social and Therapeutic Help Fund, Prague, to selected children's homes within the framework of the project "Clean air for flooded Moravia". The study was conducted in a children's home in Ostrava-Hrabová. It was concluded that the air cleaners represent an effective mean for improving indoor air quality.

Air Conditioning↗

PubMed1999

Electro-ionic microclimate and materials used in the indoor environment.

In 170 experiments relationships between 31 different materials used in indoor premises and ionization of the air in their proximity were assessed. The influence of temperature and relative humidity on ionization of air was studied. It was observed that the materials tested could be divided into four groups according to their behaviour towards ambient light negative ions. From the results obtained it follows that the more humid and thus more conductive the material in question, the greater is its influence on the ionization of the air. The most important criterion influencing the relationship of the material and ambient air ionization is the magnitude of the contacting surface of the material that is given by its ruggedness and structure. In natural materials considerable porosity may be expected. In contrast smooth surfaces without pores can be expected in materials produced by melting. Other physico-chemical properties of the materials are manifested in a more discrete way.

Air Ionization↗