The list of diagnostic tests mentioned in various sources as used in the diagnosis of Pregnancy includes: 1  Urine human chorionic gonadotropin (HCG) tests - these are the basis of home pregnancy tests. 2  Home pregnancy tests. 3  Pregnancy blood tests.
Quick Answer. Ductless bathroom fans remove odors and germs by filtering the air through an activated charcoal filter. These fans have a lower blade speed, also called a tip speed, which allows more air to be sucked up into the filter. Once cleaned, the air is re-circulated back into the bathroom.
Tweet. Removing the cover on a bathroom exhaust vent fan. Bathroom exhaust vent fans are needed to remove excess humidity that can lead to mold or mildew and cause damage to your walls or ceiling. Unlike older vent fans, new models are much quieter and more efficient.