Effect of variation in air conditioner temperature on peak expiratory flow rate of air conditioner users

As a result of increasing environmental temperature, use air conditioner (AC) has become very popular specially in the urban areas mostly during warmer months year. Exposure to cold, dry AC on regular basis can cause various alternations lung functions users which lead many future diseases. These be influenced by temperature at is regulated. This cross-sectional study was conducted observe effects and variation peak expiratory flow rate (PEFR) apparently healthy adult male female living Dhaka city, Bangladesh. The group (group A) consisted 48 who were exposed for least 6 hours per day minimum 5 days week past 2 4 years. They divided into two subgroups based Group A1 24 subjects (12 12 female) years where constantly regulated between 18° C 22°C. A2 same period time but 23°C 25°C. control B) similar number age, gender, BMI socioeconomically matched did not nearly all. Actual, predicted percentage value PEFR estimated both using Minato Autospiro AS-507. Statistical analysis done unpaired Student’s ‘t’ test p 0.05 taken as level significance. In this mean actual (%) significantly lower comparison nonusers case female. Between groups users, 18°C 22°C Use reduce associated with more reduction users.