WHY IN THE PREMISES MUST BE OPEN WINDOWS AND DOORS?
Since our air coolers are using as coolant simple water which evaporates when the warm outside air is going via moisturized by water filters of the air coolers and delivered in the premises together with the cooled air the humidity in the premises increases. Such additional humidity is not feeled by the humans or animals bodies and also by plants if your follow one of the main rules of functioning of air coolers of evaporative type how much air is delivered to the premises via evaporative air coolers so much must be exhausted from the premises via openings or/and via additional exhaust ventilators. For the best results, always allow the air from the air coolers to flow through the premises (see the answer to the previous question). Otherwise humidity in the premises can reach the level which can negatively influence the level of comfort in the premises. From this also can be made a conclusion that our air coolers have no alternative in those premises where it is impossible to make full
