Use "hygienically" in a sentence

1. Device for determining the force and path of a body or body parts moving in a hygienically closed system

2. BARO disinfection technology makes a decisive contribution to improving plant hygiene in food production by ensuring hygienically clean air in air conditioning systems.

3. The present invention has the advantage that the consumption of the thermal energy required for drying is minimised, and hot air or hot water created in the surplus heat cooler is reused such that not only is there a saving in energy but there is also a dramatic reduction in the amount of carbon emissions, smells are not created, and the dried solid objects are hygienically safe.