[AEK305] Nitrogen + H2 with tank (950ml) Ecotechnics SRL [AEK305]

Air conditioner tightness check using nitrogen gas is a service provided by far from every service or master who fills air conditioners. Nevertheless, everyone who works with car air conditioners faces one problem - how to know that the air conditioner system is tight and can be refilled? We all know that the refrigerating agent, freon r134a, is very harmful to nature and destroys the ozone layer, and in the end, filling the air conditioning system that is not clear or tight is not really smart - after all, the whole procedure will be in vain when the air conditioner stops freezing after a week or even a few days.