The process involves fresh air supply as well as purification of recycled air. Fresh air is supplied to liquid where with the help of chemical and ultra violet rays the level of germs and bacteria will be reduced. Air is forced through water by a blower. This air is supplied to AC Plant where before entering into the AC plant it contacted with dehumidifier in order to eliminate water particles from the air entering into the AC plant. At AC plant the air is again purified with Ultra Violet rays and then the air passes to the HEPA filter to insure its purification at final stage before entering into the Operation Theatre. Through Operation Theatre, the air is again sent to recycle. The recycled air is passed through a through water mixed with chemical via a washable duct. The fresh air and recycled air both are passed through the same procedure. The humid air is now passed through a dehumidifier to remove excess moisture from the air and then fed to the cooling tubes or the air-conditioning plant. The cooled air is then finally passed through a hepa filter of 0.3 microns and then fed to the target area.