Health experts are warning against using hand dryers in public bathrooms due to hygiene concerns. These devices pull air from the washroom environment, which often contains bacteria, fecal particles, and other harmful germs. When the dryer blows warm or jet air to dry hands, it spreads these contaminants back onto freshly washed hands and throughout the space. Toilets release bacteria like E.coli into the air when flushed, and hand dryers can distribute these widely. Studies indicate jet air dryers spread germs more than traditional warm air models. Touching contaminated surfaces or breathing germ-laden air may lead to infections such as colds, flu, or stomach illnesses. Doctors recommend using paper towels, carrying a personal handkerchief, or allowing hands to air dry naturally instead. Proper handwashing with soap for at least 20 seconds remains the most crucial step in preventing infection.
Why Hand Dryers Spread Germs in Public Washrooms
Hand dryers in public, office, and hotel bathrooms draw air from the washroom itself, including beneath and beside the unit. This air is often contaminated with bacteria like E.coli, fecal particles, and other germs released when toilets flush. Dr. Swati Rajagopal, Consultant in Infectious Disease and Travel Medicine at Aster CMI Hospital, Bangalore, explained that dryers blow warm or jet air to dry hands, simultaneously spreading washroom germs into the air and onto clean hands. Dr. Nidhin Mohan, Consultant in Internal Medicine at Narayana Health City, Bengaluru, noted that touching the dryer surface increases contamination risk. Studies show jet air dryers spread germs more widely than regular warm air models. Warm air alone does not kill bacteria completely, leaving hands vulnerable to recontamination.
Source: Link