PT - JOURNAL ARTICLE AU - Svoboda, Jaroslav TI - Ions and their contribution for living space DP - 2014 Nov 14 TA - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis PG - 189--198 VI - 56 IP - 2 AID - 10.11118/actaun200856020189 IS - 12118516 AB - This contribution is dealing with more than up to date topic. Nowadays more than one third of human population suffers from some form of allergies - dust, pollen or mites. The air we breathe the whole day does not come from outside, on the contrary it comes from closed rooms used for living. the important part of air are the negative ions which are neccessary for life. Therefore, the optimal level of ions should be maintained. Living enviroment which does not contain enough negative ions causes various diseases, such as allergies, asthma, headache, tiredness and depressions.Increased concentration of negative ions inside a house is the basic prevention of tiredness and other diseases.