Placing lemon slices with salt in a room is a popular home remedy believed to remove bad smells, reduce stress, cleanse negative energy, and kill germs. While lemon’s natural oils can make a room smell fresher and may slightly boost mood through aromatherapy, science does not support claims that lemon and salt purify air, absorb toxins, or eliminate germs.
Experts agree the benefits are mainly sensory and psychological. Lemon scent can feel uplifting and calming, but it doesn’t replace proper cleaning, ventilation, or air purifiers. Cultural traditions across many regions use lemon and salt symbolically for protection and cleansing, which may offer emotional comfort rather than physical effects.
In short, lemon and salt can freshen the air and create a calming atmosphere—but they are not a proven health or air-purifying solution.
