Pharmatech Engineers Pvt. Ltd. Manufactures Dehumidifier. Pharmatech Engineers Pvt. Ltd. Or Sehgal Industrial Works manufactures Pharmaceutical & Chemical Equipments. The Dehumidifier is available in portable refrigeration type which can be mounted on a trolley. This comes under capsule section. This is used in massive removal of extra moisture. It incorporates a Kirloskar hermetically sealed compressor. This Dehumidifier is offered in capacity of 1 ton for 2500 cu. Ft. & 1.5 ton for 3500 cu. Ft. Area.