Exploring the quality of life (QL), we use different types of questionnaires to obtain a quantitative result, which we can interpret using a compatible key for it. Pediatric Asthma Quality of Life Questionnaire with Standardized Activities (PAQLQ(S)) by Juniper is a reliable measure of the influence of asthma on QL in children. The Polish Version of the questionnaire is a strict translation of the english one, however it is not completely validated, which in practice can evince in difficulties in understanding the meaning of the applied questions, probably because of the difference in the habits of both populations.