NASA studies show that human productivity falls 3.6 % for every degree above 22°C and 4.7% over 32°C. The air quality is also affected so fresh air is required to avoid loss of staff productivity, absenteeism strains and accidents. The heat generated by machines and processes can quickly become unbearable when outdoor temperatures increase.     Breezair, with its simple design, offers cool, fresh, clean air at an affordable price. The outside air is filtered and cooled by the evaporation process. Investment costs are divided by two and running cost by 5 or even more compared to conventional air conditioning. Breezair supplies a constant flow of naturally cooled, fresh air, without the air being recirculated.The stale air is pushed away using existing openings or with extractors.